en-us CN RSS Generator All content copyright CN plc Keep up-to-date with the latest news http://www.chrisnewland.com http://www.chrisnewland.com/av/2/what-is-a-content-management-systemA Content Management System or CMS for short is a system that allows a non-technical person to maintain a website by generating and editing content for that website.Sat, 20 Feb 2010 10:37:29 +0000 http://www.chrisnewland.com/av/3/cms-linking-to-external-sitesFor now these are simple links but later on I will be routing all of these external URLs through a tracker to monitor the exit points from my websites.Sat, 20 Feb 2010 10:39:13 +0000 http://www.chrisnewland.com/av/5/wattson-smart-energy-meterFantastic stylish and functional device that will pay for itself and make your home greener.Thu, 05 Aug 2010 00:00:00 +0100 http://www.chrisnewland.com/av/7/help-me-chillAvailable via DAB, Digital TV, and Internet radio. A very relaxing selection of chill electronica.Sat, 20 Feb 2010 10:41:37 +0000 http://www.chrisnewland.com/av/8/model-rocketryWhen the weather is good, this is great fun.Sat, 20 Feb 2010 10:42:15 +0000 http://www.chrisnewland.com/av/12/lifehackerInteresting website with tips on living more efficiently.Sat, 20 Feb 2010 23:45:43 +0000 http://www.chrisnewland.com/av/17/demosceneThe art of pushing hardware and coding skills to their limits.Sun, 21 Feb 2010 00:00:00 +0000 http://www.chrisnewland.com/av/30/solving-reverse-dns-problem-for-multiple-domainsIf you use virtual mail hosting to host multiple domains on a single mail server (e.g. qmail with vpopmail) and you are having problems with mail being rejected due to rDNS (reverse DNS) failures then here is the solution.Thu, 15 Apr 2010 17:38:51 +0100 http://www.chrisnewland.com/av/31/secure-network-backup-scp-with-bandwidth-throttlingEver needed to do a big backup or file copy from a remote site but don't want to max out your local connection? Use this little-known switch to the scp command to get your files securely at a rate that suits your link.Fri, 23 Apr 2010 13:47:12 +0100 http://www.chrisnewland.com/av/32/create-iso-from-cd-or-dvd-in-linuxIf you are using VirtualBox or another virtualisation system and need to make some ISO images from your installation media for quick VM creation then use this command to easily create an ISO image from optical media.Fri, 30 Apr 2010 00:00:00 +0100 http://www.chrisnewland.com/av/33/deadlock-when-2-threads-write-to-the-same-hashmapIf 2 or more threads are writing to the same java.util.HashMap then take the following advice to avoid deadlock.Tue, 04 May 2010 00:00:00 +0100 http://www.chrisnewland.com/av/34/virgin-media-netgear-wn111-on-ubuntu-linuxVirgin Media are supplying a Netgear WN111v2 wireless N USB adapter with their 50Mb service. Here's how to get it working under Linux (I used Ubuntu 9.10 Karmic Koala)Thu, 03 Jun 2010 08:21:08 +0100 http://www.chrisnewland.com/av/35/generate-ssh-public-key-from-private-key-using-ssh-keygenIf you have lost your ssh public key you can recreate it from the private key using ssh-keygen.Fri, 04 Jun 2010 00:00:00 +0100 http://www.chrisnewland.com/av/36/updating-virtualbox-public-key-in-apt-from-sun-to-oracleOracle has taken over Sun so if you are managing your Virtualbox installation in Debian using the apt package manager you will need to update your public key to avoid public key errors with apt-get update.Mon, 21 Jun 2010 00:00:00 +0100 http://www.chrisnewland.com/av/37/decrypting-gpg-file-using-an-external-keyringIt's good security practice to keep your gpg keyrings separate from the files they encrypted. Here is how to decrypt your files using keyrings stored on an external filesystem (USB stick etc).Wed, 30 Jun 2010 00:00:00 +0100 http://www.chrisnewland.com/av/38/fixing-virtualbox-fullscreen-on-wrong-monitorSince upgrading to VirtualBox 3.2.x (Ubuntu host, XP guest) my guest OS always goes to the primary monitor even when I hit ctrl-F when the windowed guest is on the secondary screen.Fri, 09 Jul 2010 00:00:00 +0100 http://www.chrisnewland.com/av/39/php-validate-currency-with-pregmatchIn PHP 6 the ereg() functions for POSIX regular expressions will be removed and you will need to use the PERL preg_match() regex functions which are harder to use in my opinion. Here is a regular expression for preg_match() to validate a currency amount with up to 2 decimal places.Thu, 05 Aug 2010 00:00:00 +0100 http://www.chrisnewland.com/av/40/samsung-n220-netbook-with-intel-atom-n450-dual-core-cpuA great little dual-core netbook with a nice keyboard, decent sound, and a better graphics chip than the first generation netbooks.Thu, 05 Aug 2010 00:00:00 +0100 http://www.chrisnewland.com/av/41/files-array-empty-on-php-file-uploadTrying to upload a file from an HTML form and the PHP superglobal array $_FILES is empty. Here is my solution.Fri, 13 Aug 2010 00:00:00 +0100 http://www.chrisnewland.com/av/42/using-modrewrite-to-protect-your-bandwidth-against-hostile-spiders-and-spambotsI recently checked the log files of one of my websites to discover a set of guestbook spambots were hitting a non-existent page about every 10 seconds which resulted in my site returning a 5KB response. This quickly added up to the 2.5GB monthly limit on my hosting package so here's how to protect your bandwidth using Apache httpd's mod_rewrite rules.Wed, 18 Aug 2010 22:09:58 +0100 http://www.chrisnewland.com/av/43/three-mifi-enable-web-interface-via-netvigator-firmware-upgradeThe excellent little Three Mifi (a branded Huawei E5830 wifi to 3G routing modem) has had it's web interface disabled by the network provider which removes several useful features such as MAC-address filtering and "Always-On" mode (great if the connection drops when on a train). Here's how to re-enable it by flashing with the Netvigator unofficial firmware.Fri, 27 Aug 2010 22:04:31 +0100 http://www.chrisnewland.com/av/44/remove-subversion-information-from-a-directory-treeIf you use the subversion (svn) version control system you might find yourself needing to remove the .svn directories from your tree for things like backups and build processes. This simple Linux command will recursively find and delete .svn directories from the file tree.Tue, 31 Aug 2010 10:44:02 +0100 http://www.chrisnewland.com/av/45/java-cant-delete-directoryJava can't delete a directory if it is not empty. The following code uses recursion to delete the directory tree.Tue, 31 Aug 2010 00:00:00 +0100 http://www.chrisnewland.com/av/47/find-and-replace-with-nanonano is a simple text editor for Linux and UNIX systems and I've been using it for years but only discovered the search and replace function today.Fri, 03 Sep 2010 00:00:00 +0100 http://www.chrisnewland.com/av/48/ubuntu-mediastick-with-underscoreA few days ago I tried to copy some files onto a USB pendrive which appeared on the desktop as Mon, 06 Sep 2010 00:00:00 +0100 http://www.chrisnewland.com/av/49/openoffice-calc-horribly-slow-to-open-spreadsheetRecently I've been having problems with a certain Excel97 formatted spreadsheet in OpenOffice Calc. It takes about 30 seconds to load and only has about 30 rows. I thought the problem was to do with some cells containing hyperlinks to web pages so I removed the cells and re-pasted them as text but it still takes the same time to load or save.Tue, 07 Sep 2010 11:54:18 +0100 http://www.chrisnewland.com/av/50/debian-software-raid-1-on-non-boot-diskHow to create a software RAID1 array on your non-boot drive using fdisk and mdadmTue, 12 Oct 2010 00:00:00 +0100 http://www.chrisnewland.com/av/51/solved-dmsetup-procmisc-no-entry-for-device-mapper-foundTrying to get Linux software RAID working? Here is how to solve the device mapper error.Tue, 05 Oct 2010 13:51:16 +0100 http://www.chrisnewland.com/av/52/headless-virtualbox-multiple-guests-with-bridged-networkingWant to have multiple guests inside a single host that can communicate with each other, with the host, and with the internet? Here is how to configure configure a headless host using VBoxManage.Mon, 11 Oct 2010 00:00:00 +0100 http://www.chrisnewland.com/av/53/headless-start-and-stop-multiple-virtualbox-guests-using-vboxheadless-and-vboxmanageHow to start and stop your VirtualBox guests from the host's command line using VBoxHeadless and VBoxManage.Tue, 12 Oct 2010 00:00:00 +0100 http://www.chrisnewland.com/av/54/move-svn-repository-onto-a-new-serverTime to move your svn repo from a tired old server to a shiny new one?Tue, 12 Oct 2010 00:00:00 +0100 http://www.chrisnewland.com/av/55/ubuntu-fix-load-balancing-tick-problemKernel 2.6.35 introduced a bug with scheduling on dual core processors that caused high numbers of Load balancing tick events which prevent the CPU from entering deep sleep states. This increases heat and power usage and reduces battery life which is bad news for dual core netbooks (Atom N450)Fri, 03 Dec 2010 00:00:00 +0000 http://www.chrisnewland.com/av/56/virtualbox-installation-on-headless-serverInstructions for installing Sun/Oracle VirtualBox on a headless Debian server. In this example you can learn how to install a Windows XP guest on a headless Debian server using just the command line.Wed, 08 Dec 2010 00:00:00 +0000 http://www.chrisnewland.com/av/57/ashes-jokes-and-cricket-jokes-after-england-beat-australiaAshes Jokes, Australia Jokes, Cricket Jokes, Ashes 2010 Jokes, Ashes 2011 Jokes, England win ashes Jokes. In case you were wondering, this article is a search test for topical news.Fri, 07 Jan 2011 12:10:22 +0000 http://www.chrisnewland.com/av/58/cisco-pix-site-to-site-vpn-with-nat-before-encryptionHow to set up a site-to-site VPN on a Cisco PIX firewall using Policy NAT to mangle your internal addresses to match the internal addresses of your VPN counterparty.Mon, 10 Jan 2011 00:00:00 +0000 http://www.chrisnewland.com/av/59/solved-svn-commit-problems-with-missing-filesYou svn add some files but then delete them from your local filesystem. Some time later you try to commit but the commit fails due to the missing files. AAAAAAARRRRRRRGGGGGGGGGHHHHHHH!Thu, 13 Jan 2011 00:00:00 +0000 http://www.chrisnewland.com/av/60/solved-linux-route-command-takes-a-long-time-to-completeIf your routing table takes a long time to display then you may have a DNS resolution issue causing the slowdown. Here is the solution:Wed, 26 Jan 2011 00:00:00 +0000 http://www.chrisnewland.com/av/61/postgres-dump-database-schema-with-or-without-dataNeed to copy the database schema (table structure) with or without the table data from an existing postgres database?Mon, 28 Mar 2011 00:00:00 +0100 http://www.chrisnewland.com/av/62/generate-ssl-csr-for-apache2How to generate a Certificate Signing Request (CSR) for a new SSL certificate for an apache2 webserver.Wed, 26 Jan 2011 16:20:05 +0000 http://www.chrisnewland.com/av/63/which-process-is-using-port-with-lsof-or-netstat-solve-bind-errorsYou've got a bind error because a process is already listening on your port. Here are two different ways to find the offending process (Linux/UNIX/etc)Tue, 01 Feb 2011 00:00:00 +0000 http://www.chrisnewland.com/av/64/solved-windows-7-hang-on-boot-classpnpsysWindows 7 hanging on boot? Safe mode gets stuck at Classphp.sys? Here is the solution.Wed, 16 Feb 2011 00:00:00 +0000 http://www.chrisnewland.com/av/65/postgres-server-to-server-database-copy-performance-boostHow to copy a database from one server to another over a network.Tue, 22 Feb 2011 00:00:00 +0000 http://www.chrisnewland.com/av/66/varlibdpkgstatus-broken-after-upgrading-from-ubuntu-jaunty-to-maverickwarning, in file '/var/lib/dpkg/status' near line 42896 package 'virtualbox-3.2': error in Version string '3.2.12-68302_Ubuntu_jaunty': invalid character in revision number Wed, 02 Mar 2011 14:37:05 +0000 http://www.chrisnewland.com/av/67/ubuntu-remove-openjdk-and-use-sun-java-as-defaultNow that Sun Java is in the Maverick partner's repositories you can use Sun's JDK and JRE easily in Ubuntu.Thu, 03 Mar 2011 00:00:00 +0000 http://www.chrisnewland.com/av/68/virtualbox-nsis-cant-write-bytes-to-outputSomething has broken in Virtualbox 3.2.12 (Linux 64 bit host, XP 32 bit guest) and it's no longer possible to run a NSIS installer script on a Virtualbox shared folder: Error: can't write 19678836 bytes to output Error - aborting creation processMon, 21 Mar 2011 00:00:00 +0000 http://www.chrisnewland.com/av/69/open-port-range-on-cisco-pix-firewallHow to open a range of ports on a Cisco PIX firewall with a single access-list command.Tue, 29 Mar 2011 00:00:00 +0100 http://www.chrisnewland.com/av/70/remove-file-from-svn-repository-but-keep-local-copySo you've added a file to the subversion repository in error but you still want to keep a local copy? Examples are committing your personal .classpath and .project settings for Eclipse when developing as a team. Here is how to keep a local copy of the file but remove it from version control.Thu, 31 Mar 2011 00:00:00 +0100 http://www.chrisnewland.com/av/71/remove-svn-folders-on-linuxHow to remove .svn hidden directories with a single Linux command.Thu, 31 Mar 2011 00:00:00 +0100 http://www.chrisnewland.com/av/72/mapping-a-drive-in-virtualbox-windows-guest-with-net-useHere is how to map a Windows network drive to a Virtualbox shared folder (set up the share in the Virtualbox VM settings before you start the guest VM).Thu, 31 Mar 2011 00:00:00 +0100 http://www.chrisnewland.com/av/73/the-8-commandments-for-securing-your-users-passwordsDeveloping a client server application that authenticates over a network? Here is how to make sure your client's passwords are stored securely in your database and are protected from rainbow table attacks.Wed, 06 Apr 2011 21:23:27 +0100 http://www.chrisnewland.com/av/74/fix-virtualbox-clock-driftI've noticed the system clock in my VirtualBox XP guest is drifting so that after a few hours is can be 30 seconds behind the host OS clock. This VBoxManage command will fix that.Wed, 13 Apr 2011 00:00:00 +0100 http://www.chrisnewland.com/av/75/solved-excel-2010-very-slow-to-open-filesGot a whizzy new PC with Office 2010 and sometimes Excel documents are taking ages (minutes) to open? This fix worked for me and now the documents open instantly.Tue, 19 Apr 2011 00:00:00 +0100 http://www.chrisnewland.com/av/76/solved-error-bumping-revisions-post-commit-svnIf you have your working copy on a Samba share and your samba is an old version that contains a bug then you will get an error about bumping revisions post commit. Here is how to solve it.Thu, 21 Apr 2011 00:00:00 +0100 http://www.chrisnewland.com/av/77/postgres-list-user-defined-stored-proceduresNeed to get a list of stored procedures but don't want to wade through all of the built in ones? Use this query to get them.Thu, 12 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/78/postgres-invalid-byte-sequence-for-encoding-utf8Trying to restore a postgres database dump taken from an old version of postgresql? Your database might not be in UTF8 format and might be in an older format such as SQL_ASCII. Here is how to create your database using createdb so that you can restore the dump.Mon, 16 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/79/dotdeb-packages-need-gpg-keyW: GPG error: http://packages.dotdeb.org oldstable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E9C74FEEA2098A6E Dotdeb packages are now signed. Here is how to import the dotdeb gpg keyMon, 16 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/80/create-and-export-pgp-keys-for-postgresqlHere is how to generate the PGP public and private keys needed for encrypting/decrypting column data in postgres using the pgp_pub_encrypt and pgp_pub_decrypt functions from pgcrypto.Mon, 16 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/81/install-pgcrypto-for-postgres-encryption-in-debian-lennyIf you need database level encryption in postgresql you can add it easily using the functions in the pgcrypto contrib module.Tue, 17 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/82/postgres-list-databasesHere is how to list your databases in postgres from the command line (using psql) and from within psql.Wed, 25 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/83/debian-squeeze-mozilla-gpg-keysInstall these GPG keys if you want to add the Mozilla apt repository to Debian Squeeze. W: GPG error: http://mozilla.debian.net squeeze-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 85A3D26506C4AE2AWed, 25 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/84/disable-exim4-mta-startup-on-debian-squeezeDon't need an MTA running on port 25?Disable exim4 like this.Thu, 26 May 2011 00:00:00 +0100 http://www.chrisnewland.com/av/85/create-svn-mirror-over-a-networkIf you need a hot-spare of your svn repository or want an easy way to migrate your repo to a new server without dumping, copying, and reloading then use this technique to clone your repo over the network using svnsync (no local access to svn server required).Tue, 21 Jun 2011 00:00:00 +0100 http://www.chrisnewland.com/av/86/hot-key-for-newlink-nlkvm-p2pc-2-port-micro-kvmHere is how to switch inputs on the NewLink NLKVM PC2PCTue, 28 Jun 2011 13:27:39 +0100 http://www.chrisnewland.com/av/87/linux-remove-duplicate-lines-from-file3 different ways to remove duplicate lines from a file at the command line.Tue, 28 Jun 2011 00:00:00 +0100 http://www.chrisnewland.com/av/88/virtualbox-install-extension-pack-on-headless-serverIf you get the error VRDE: VirtualBox Remote Desktop Extension is not available when trying to start a headless VM on VirtualBox 4 or greater then it is because you have not installed the extension pack containing VRDE. Here is the solution.Thu, 30 Jun 2011 00:00:00 +0100 http://www.chrisnewland.com/av/89/samsung-syncmaster-913n-1280x1024-resolution-in-debian-and-ubuntuMy Samsung SyncMaster 913N only detects modes up to 1024x768 in Debian and Ubuntu, here is how to add the 1280x1024 native resolution using xrandr.Fri, 01 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/90/etcaptsourceslist-for-dist-upgrade-lenny-to-squeezeVolatile no longer exists starting with Debian Squeeze so here are the apt sources.list lines you need to dist-upgrade from Lenny.Mon, 04 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/91/find-biggest-tables-in-postgresFind the tables in your database which occupy the most disk space.Mon, 04 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/92/virtualbox-windows-guest-stuck-in-shutting-down-stateIf your Windows guest VM gets stuck in a state when you can no longer enter commands (such as a bluescreen of death, or the shutting down process) then you can perform the equivalent of pulling the power cord to shut down the VM.Thu, 14 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/93/linux-redirect-standard-out-and-standard-err-to-dev-nullIf you don't care about any stderr and stdout output from a process (e.g. you are running a script from cron and don't want to be bombarded by emails containing the process debug) use these redirects to send the output to /dev/nullMon, 18 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/94/postgresql-convert-bigint-to-dateIf you are storing your timestamp data with millisecond accuracy in a PostgreSQL BIGINT column then you can use the following SQL to retrieve the value as a date.Tue, 19 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/95/get-sedol-from-isin-using-sql-postgresThe SEDOL identifier for UK stocks is a substring of the ISIN code. Here is how to extract it using a PostgreSQL SELECT statement.Tue, 19 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/96/solved-syslog-ng-error-opening-file-for-writingIf your syslog-ng runs as root but still won't create the logfile for writing then you have probably missed the following options from your config.Wed, 20 Jul 2011 17:48:50 +0100 http://www.chrisnewland.com/av/97/linux-find-grep-and-rm-with-a-massive-number-of-filesGot a directory with a bazillion files and need to delete the ones containing a certain text string? Here is how you can do it with a simple one-liner.Fri, 22 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/98/run-postgresql-queries-from-the-command-line-and-export-dataNeed to dump some data from your database into a file but want to use SQL to intelligently select what you export? Here is how to run SQL from the command line using the psql toolFri, 22 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/99/sort-files-by-size-in-debianTrying to find the big files clogging up your filesystem?Fri, 22 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/100/css-padding-shortcutsHow to pad in CSS using 1, 2, or 4 parametersWed, 27 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/101/solved-php-parse-error-syntax-error-unexpected-tobjectoperatorGot an unexpected T_OBJECT_OPERATOR syntax error in your PHP? Here is the causeWed, 27 Jul 2011 00:00:00 +0100 http://www.chrisnewland.com/av/102/xeon-family-15-model-4-stepping-1-is-64-bitIs the Dell PowerEdge 1850 a 64-bit server?Mon, 01 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/103/solved-gpg-dont-know-invalid-packet-ctb2dIf you get this error when decrypting using an external key then you probably exported your keyrings as ASCII armoured!Wed, 03 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/104/convert-milliseconds-timestamp-into-excel-date-and-timeIf you have a CSV file containing timestamps as milliseconds then this formula will convert into Excel date timeWed, 03 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/105/pix-asdm-6-error-threat-detection-statistics-host-number-of-rate-0There is a bug in Cisco's ASDM interface when you try to enable threat statistics via the GUIWed, 10 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/106/solved-ubuntu-ssh-too-many-authentication-failuresssh error message on Ubuntu when connecting to a new ssh serverWed, 10 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/107/solved-dell-poweredge-1750-cant-install-grubProblem: you install Debian or any GRUB or LILO based operating system on your Dell 1750 but when you reboot after installation it hangs at the bootloader stageFri, 12 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/108/solved-dell-poweredge-1750-only-256mb-ram-availableIf your Dell PowerEdge 1750 is only showing 256MB of RAM available and there is more RAM installed then you have OS Install Mode enabled in the BIOSFri, 12 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/109/pix-show-mac-addressHow to display the MAC address on a PIX firewallFri, 12 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/110/log-to-syslog-with-php-5-and-syslog-ngHow to get logging to syslog working correctly with PHP and syslog-ngThu, 18 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/111/swt-best-practice-single-display-multiple-shellsHere is a design pattern for an SWT single document interface (SDI) with one Display dispatch loop handling for multiple windows (Shells)Fri, 19 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/112/solved-windows-could-not-start-because-the-following-file-is-missing-or-corrupt-c\windows\system32\config\systemIf you get this error message when booting your Windows PC then this trick might just save the dayTue, 23 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/113/ebuyer-non-0871-numberNeed a non 0870 or 0871 number for Ebuyer so you can call them from your mobile?Thu, 25 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/114/java-remove-non-alphanumeric-characters-from-stringNeed to sanitise a Java String containing user input? This simple regular expressions will clean it for youThu, 25 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/115/google-adsense-url-channels-should-i-include-www-How do I set up URL channels correctly on Google AdSense to monitor traffic to my websites?Mon, 29 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/116/debian-n220-netbook-power-saving-scriptPower saving script for Samsung N220 netbook on Debian squeezeWed, 31 Aug 2011 00:00:00 +0100 http://www.chrisnewland.com/av/117/debian-linux-2-nic-routerHow to make a router from a Debian Linux PC with 2 network cardsThu, 01 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/118/swt-literal-ampersand-instead-of-keyboard-hotkeyIf you call setText() on SWT components with a String containing an ampersand then the ampersand will be converted into a keyboard hotkey on the next character. Here is how to use a literal ampersand in SWT Fri, 09 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/119/elegant-use-of-javas-mathmax-to-prevent-negative-numbersHere's a neat trick when scrolling / dragging to prevent negative coordinatesFri, 09 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/120/java-primitives-in-size-orderHow many bytes do Java primitive types (boolean, byte, char, short, int, float, double, long) take up?Mon, 12 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/121/comment-syntax-for-java-html-cssHow do you add comments to Java, JavaScript, HTML, CSS?Mon, 12 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/122/java-return-code-in-linux-shell-scriptHow do you get the return code from a Java program in a Linux shell script?Tue, 13 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/123/svn-dbtxncurrent-lock-permission-denied-subversionTrying to commit to subversion repo and get a current-lock permission denied error?Wed, 14 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/124/useful-diff-examplesExamples of how to get the most from the diff toolMon, 19 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/125/business-insiders-ubs-quant-puzzle-solutionAn interviewee at UBS for a math-heavy quant job was asked one of the toughest Wall Street interview questions we've seen yet.Wed, 21 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/126/the-monty-hall-problemA puzzle by Marilyn vos Savant in 'The Curious Incident of the Dog in the Night-Time'Wed, 21 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/127/solved-invalid-machine-name-or-uuid-virtualboxTrying to start a VM from the command line (headless) and get this error?Thu, 22 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/128/fatal-sorry-too-many-clients-already-postgresqlGetting a 'too many clients already' error from your database driver when opening a connection? Use this Java design template to ensure you are not leaking resources.Mon, 26 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/129/java-numerical-overflowHow Java handles numerical overflow (result of an operation is too large to be represented in the result variable)Mon, 26 Sep 2011 00:00:00 +0100 http://www.chrisnewland.com/av/130/lateral-thinking-puzzle-3-switches-3-lightbulbsNice lateral thinking puzzle from a book I found in a charity book shop at the weekendSun, 02 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/131/virtualbox-41-conflicts-with-virtualboxHow to upgrade VirtualBox 4.0 to 4.1 on Ubuntu LinuxWed, 12 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/132/mscorsvwexe-high-cpu-usageWhat is the mscorsvw.exe process and why is it using so much CPU?Thu, 13 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/133/swt-canvas-plot-centred-textHow do you plot centre-aligned text on an SWT Canvas object?Thu, 13 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/134/plugin-containerexe-high-cpu-on-firefoxIf you are using a modern version (3.6+) of Mozilla Firefox then there is a new safety wrapper around plugins which can make your PC run very slowly.Thu, 13 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/135/logic-puzzle-buckets-of-water-4l-7l-make-5lAn example of the classic water measuring puzzleFri, 14 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/136/java-defensive-programming-compare-variable-with-constantHere's an easy way to eliminate NullPointerException when you compare a variable against a constantSun, 16 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/137/what-is-msmpengexe-and-why-is-the-cpu-usage-so-highHere is an explanation of what the process MsMpEng.exe does and how it can result in high CPU usageFri, 21 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/138/binary-file-standard-input-matches-when-grepping-tailYou are tailing a growing log file using 'tail' and piping the output into grep and you get the error Binary file (standard input) matches when grepping tail and the command exits. Fri, 21 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/139/svnserve-start-on-boot-using-update-rcd-on-debian-squeezeHow can you get svnserve to start on boot by creating an init.d script and linking using update-rc.dMon, 24 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/140/how-to-change-a-car-battery-safelyInstructions on how to safely replace the battery in your carTue, 25 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/141/change-the-hostname-on-a-linux-systemHow do you change the hostname of a Linux PC?Fri, 28 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/142/postgresql-config-data-log-files-on-debianWhere does PostgreSQL store the data and config files like postgresql.conf, pg_hba.conf on DebianFri, 28 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/143/postgresql-debian-make-a-baseline-backup-for-pitrHow to make a baseline backup for Point In Time Recovery (PITR) in PostgreSQL in DebianFri, 28 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/144/tar-list-contents-of-fileHow do you get a list of the files inside a tar archive?Fri, 28 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/145/solved-css-border-collapse-render-bug-on-ipadIf you are using CSS background-image in a table with border-collapse and your images get squashed when viewing on an iPad, iPhone, or iPod then this PHP code snippet will detect and fix the rendering on iDevices.Sun, 30 Oct 2011 00:00:00 +0100 http://www.chrisnewland.com/av/146/tar-time-stamp-is-in-the-futureHow to solve the time stamp is in the future error when you unpack a tar file on a system where the clock is behind the system clock on which you created the tar archiveMon, 31 Oct 2011 00:00:00 +0000 http://www.chrisnewland.com/av/147/debian-bash-can-auto-complete-program-switchesToday I discovered by accident that bash can auto-complete command line switches to certain programsWed, 02 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/148/error-2003-hy000-cant-connect-to-mysql-server-on-10001-113How to solve MySQL Error 2003 (HY000) when trying to connect to a MySQL server on a remote machine?Thu, 03 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/149/postgres-copy-table-structure-inside-database-without-dataHow do you copy a table structure inside a database in PostgreSQL?Thu, 03 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/150/java-variable-scope-in-switch-statementVariable scope inside the case clauses of a Java switch statement is not always obvious. This example will help understand how it works.Fri, 04 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/151/mysql-fails-to-start-after-package-update-unknown-variable-lc-messages-dirAfter a package update on Debian my MySQL refused to start and syslog contained the following message [ERROR] /usr/sbin/mysqld: unknown variable 'lc-messages-dir=/usr/share/mysql'Tue, 08 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/152/android-data-network-indicators-g-e-3g-h-meanWhat do the different data network indicators mean on my Android smart phone?Tue, 08 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/153/how-to-avoid-getting-banned-from-google-adsenseFollow these important steps to avoid getting banned from Google AdSenseWed, 09 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/154/chriswhocodes-adsense-protection-scriptThis PHP script can help you to avoid an AdSense ban by filtering adverts by IP address, HTTP referrer, and page URLWed, 09 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/155/load-specific-columns-from-csv-file-into-postgresqlHow do I import data from specific columns into a PostgreSQL table?Wed, 09 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/156/java-stringsplit-include-empty-trailing-strings-How do I split a Java String at a delimiter but keep empty trailing strings?Thu, 10 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/157/java-for-loop-syntax-to-replace-iteratorOne of the new features introduced in Java 1.5 was a for-loop syntax similar to PHP's foreach loop to replace the use of java.util.IteratorMon, 14 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/158/java-short-form-array-iteration-using-for-loopThe new Java 1.5 for loop can also be used to transverse an arrayFri, 18 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/159/select-unique-values-in-postgresHow do you select unique values from a column in postgresql?Fri, 18 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/160/solved-swf-flash-movie-overlaps-css-menuHere is how to prevent an SWF flash movie from appearing on top of your CSS menu.Tue, 22 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/161/linux-show-routing-table-without-being-rootHow do you show the Linux IP routing table without being root and running the route commandThu, 24 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/162/modrewrite-protect-your-pagerank-by-redirecting-unused-subdomainsIf your site serves the same content on URLs with and without the www subdomain then search engines will treat them as two different sites and your pagerank will suffer. Unify them with these mod_rewrite rules. Sun, 27 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/163/solved-floppy-drive-light-on-all-the-timeIf you've just installed a new floppy drive in your PC and the disk activity light is on all of the time then you have installed the power cable incorrectly.Sun, 27 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/164/reset-ps3-controllerPS3 controller not responding? Here is how to reset a playstation 3 dual shock controllerSun, 27 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/165/solved-playstation-network-error-80550f17What does error 80550F17 mean when I try to connect to the playstation network?Sun, 27 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/166/solved-brother-printer-error-41What does error 41 mean on a Brother printer?Sun, 27 Nov 2011 00:00:00 +0000 http://www.chrisnewland.com/av/167/solved-windows-7-wont-boot-stop-0x0000007b-inaccessablebootdeviceIf you get error 0x0000007B when booting Windows 7 or Windows Vista then this means that the operating system can't find a driver for the device you are booting from. Here is how to fix it.Mon, 05 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/168/openssl-convert-pem-certificate-and-import-to-java-keystoreNeed to convert an x509 secure certificate so that it can be imported into a Java keystore? Here is how to do it using an intermediate DER format certificate.Tue, 13 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/169/install-latest-iceweasel-firefox-on-debianHow to install latest iceweasel on Debian SqueezeTue, 13 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/170/debian-add-new-samba-user-for-windows-fileshare-accessHow do I add a new Samba user in DebianTue, 20 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/171/cisco-pix-show-single-object-groupHow do I show the members of a single object group in the PIX firewall?Thu, 22 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/172/use-64-bit-sun-java-plugin-in-firefox-on-ubuntuHow do I use the Sun Java plugin instead of the OpenJDK IcedTea plugin in UbuntuFri, 23 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/173/bash-rename-files-using-a-for-loopHow do you rename a set of files using a single command in Linux using bash?Fri, 23 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/174/windows-7-install-the-product-key-does-not-match-current-windows-skuHow do you solve the product key SKU error message when installing windows 7?Thu, 29 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/175/linux-find-and-move-old-filesHow do you find and move files older than a certain age in Linux?Fri, 30 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/176/hp-pavilion-laptop-restore-windows-7-from-wim-file-on-recovery-partitionProgress so far on restoring a HP laptop with a failed hard disk using the WIM file from the recovery partitionFri, 30 Dec 2011 00:00:00 +0000 http://www.chrisnewland.com/av/177/virtualbox-linux-host-add-user-to-vboxusers-group-to-access-usb-devicesHow do you add the virtualbox user to the vboxusers group so that they can access USB devices?Tue, 03 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/178/stop-0xc000021a-fatal-system-error-on-windows-7-0xc0000034-0x0010037cHow do I solve error C000021A when booting Windows 7?Wed, 04 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/179/acer-aspire-enter-recovery-modeHow do I access the recovery mode on my Acer Aspire laptop?Wed, 04 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/180/ubuntu-sudo-postgres-createdbHow do you sudo to a specific user in Ubuntu to create a new Postgres database?Mon, 09 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/181/java-concatenate-null-string-with-Here's a stupid mistake I made concatenating a null (reference) String in Java so you don't have to make it!Tue, 10 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/182/java-can-an-int-fit-inside-a-float-or-a-double-without-loss-of-precisionI've recently upgraded our FIX trading software to support fractional quantities and needed to know if using double as the underlying storage for quantity could ever cause a loss of precision when storing an integer value.Wed, 11 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/183/microsoft-word-cross-reference-clauses-and-update-them-in-a-contractHow do you cross reference a paragraph in Word so that it auto-updates?Fri, 20 Jan 2012 00:00:00 +0000 http://www.chrisnewland.com/av/184/microsoft-excel-yesno-drop-boxHow do you make a Yes/No drop box in an Excel column?Wed, 01 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/185/find-open-ssh-servers-on-a-network-using-nmap-on-linuxHow do you find open ssh servers on a network using nmap?Fri, 03 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/186/using-linux-tmpfs-to-reduce-disk-writes-for-power-saving-and-longer-cf-lifespanHow to reduce disk writes for power saving or increasing compact flash lifetime using tmpfsFri, 03 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/187/ssh-tunnel-through-gateway-to-svn-repository-server-on-remote-lanHow do you connect to an svn server behind a gateway machine using ssh tunnels?Fri, 03 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/188/qmail-alias-for-email-address-with-dotHow do you set up a .qmail email alias for an email with a dot in it?Thu, 09 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/189/debian-dist-upgrade-lenny-to-squeezeHow to update Debian from lenny (5.0) to squeeze (6.0)Thu, 09 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/190/poweredge-1750-debian-squeeze-tigon3-firmwareThe tigon3 gigabit network driver is now available in the apt repository. Here is how to install it.Thu, 09 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/191/select-correct-swt-jar-for-your-os-and-jvm-at-runtimeHere is a method to dynamically classload the correct SWT jar depending on your operating system and whether it is 32 or 64 bit. It relies on a little code smell (hack) using reflection but this is much simpler solution than creating a custom classloader and then handling all the associated memory / GC issues that can ensue.Fri, 10 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/192/qmail-change-maximum-retry-timeBy default, qmail will try to deliver a mail for 7 days before giving up. Many users do not realise this and will assume the mail was received but unanswered. Here is how to change the maximum retry time to something a little shorter.Tue, 14 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/193/mysql-create-database-with-underscore-or-dash-in-the-database-nameHere is how to create a MySQL database with underscores or dashes in the database nameWed, 15 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/194/stop-0xc0000221-unknown-hard-error-systemroot-system32-ntdlldllHow to solve Unknown Hard Error when installing Windows XPThu, 16 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/195/initd-script-to-create-essential-dirs-apache-postgresql-debconf-when-mounting-var-on-tmpfsIf you are mounting log, cache, and tmp directories on a tmpfs filesystem then you may encounter problems with programs failing to start or work correctly due to missing folders. By using a simple init.d script you can create these missing directories before the programs that need them start.Wed, 22 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/196/export-data-from-mysql-into-csv-fileHow do you export the result of a MySQL query into a CSV file Thu, 23 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/197/neat-php-oneliner-to-calculate-days-in-a-given-monthA neat little one line solution for calculating the days in a month given the month and year that relies on PHP's intepretation of 0 (false) or non-0 (true)Fri, 24 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/198/qmail-512-error-when-sending-to-multiple-recipients-with-outlook-2010qmail is very fussy about extra quotes and spaces appearing in email addresses when there are multiple recipients. This can cause problems with Outlook 2010 whose address book manager makes it quite easy to add these extra charactersFri, 24 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/199/thunderbird-pressed-a-key-email-disappearedIf you have an email selected in Thunderbird and you accidentally press the "a" key when trying to type in another window then your email will disappear. Here is how to get it backTue, 28 Feb 2012 00:00:00 +0000 http://www.chrisnewland.com/av/200/sql-get-max-value-or-null-left-join-exampleSQL example to get the MAX value from the right hand table or NULL if there is no matching rowMon, 05 Mar 2012 00:00:00 +0000 http://www.chrisnewland.com/av/201/low-latency-java-tipsWhen building a Java trading application there are several steps you can take to reduce delays (latency) at the network and transaction processing levelTue, 06 Mar 2012 00:00:00 +0000 http://www.chrisnewland.com/av/202/javaioioexception-too-many-open-filesIf your Java program throws this exception then you have run out of file handles / pipes / domain sockets (depending on how your OS represents files). Here is how to debug the error on LinuxTue, 20 Mar 2012 00:00:00 +0000 http://www.chrisnewland.com/av/203/ls-sort-by-date-and-timeQuick tip for sorting the results of the ls command by ageTue, 20 Mar 2012 00:00:00 +0000 http://www.chrisnewland.com/av/204/windows-7-xp-vista-add-persistent-routeIf you need to add a static or persistent network routes to Windows 7, XP or Vista here is the command line syntaxFri, 23 Mar 2012 00:00:00 +0000 http://www.chrisnewland.com/av/205/map-jdbc-types-to-java-primitive-and-object-typesTable of mappings between Java and JDBC typesThu, 29 Mar 2012 00:00:00 +0100 http://www.chrisnewland.com/av/206/postgresql-drop-null-constraint-on-columnHow do you drop a NOT NULL constraint on a database column in PostgreSQL?Thu, 05 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/207/java-wrapper-around-an-external-processHow to invoke an external process from Java and collect the standard error output. This example converts a PDF using a Java wrapper around the Linux program pdftotextThu, 05 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/208/using-the-java-15-scheduledexecutorservice-for-scheduling-repeating-tasksHow to use the java.util.concurrent Executor classes as a replacement for Timer and TimerTaskTue, 10 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/209/debian-ubuntu-php-gd-function-imageantialias-not-implementedTrying to use the PHP function imageantialias from GD under PHP on Debian or Ubuntu? Here is why it doesn't work and what you can do about itThu, 12 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/210/ubuntu-natty-narwhal-switch-back-to-classic-desktop-instead-of-unityHow to switch back to Classic desktop from Unity after distro upgrade to Natty NarwhalWed, 18 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/211/ubuntu-natty-narwhal-fix-broken-scrollbars-in-classic-desktop-eclipse-nautilusIf you've upgraded your Ubuntu to Natty Narwhal (11.04) and switched from Unity back to Classic desktop you may find your scrollbars are missing in Eclipse and Nautlius file explorer. Here is how to restore themWed, 18 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/212/ubuntu-natty-narwhal-and-maverick-meerkat-thunderbird-24th-april-obsolete-warningThunderbird from the Ubuntu repositories is about to go obselete. Here is how to upgrade to the official Mozilla PPA versionThu, 19 Apr 2012 00:00:00 +0100 http://www.chrisnewland.com/av/213/zte-blade-clear-contactsHow do you clear the contacts list of a ZTE Blade phone?Wed, 02 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/214/git-list-files-not-under-version-controlHow do you list files in a git local repository which are not yet under version control?Fri, 11 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/215/debian-add-multimedia-codecsHow do I add more codecs to Debian stable from the main repository?Sat, 12 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/216/git-simple-checkout-create-new-branch-add-commitSimple example for checking out (cloning) a repo, making your own branch, adding files, and committingMon, 14 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/217/git-rename-files-under-version-controlHow do you rename a file under git?Tue, 15 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/218/git-reset-instead-of-rebaseIf your branch was taken from HEAD and you just want to merge your changes back with HEAD then you can git reset and re-add rather than rebaseFri, 18 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/219/debian-squeeze-syslog-ng-3-upgrade-config-filesThere has been a change in the syslog-ng.conf format between v2.x and v3.x so any pre-squeeze config files will need to be updatedFri, 18 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/220/easy-way-to-send-apache2-logs-to-syslog-ngVery easy way to send both Apache2 access and error logs via syslog-ng with no changes to Apache configFri, 18 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/221/raspberry-pi-vuzix-transparent-lcd-heads-up-display-hud-experimentExperiments on building a Heads-Up Display (HUD) for the Raspberry PiMon, 21 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/222/raspberry-pi-battery-power-calculationsExperiments on powering a Raspberry Pi using batteries and a switching regulatorTue, 22 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/223/ubuntu-unity-show-desktopHow do you show the desktop or minimise windows in UnityThu, 24 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/224/raspberry-pi-install-debian-image-to-sd-cardHere is how to install the Debian operating system image to an SD card using ddSun, 27 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/225/ubuntu-1204-resolvconfUbuntu now overwites /etc/resolv.conf on reboot so you can no longer manually set your nameservers hereMon, 28 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/226/create-ubuntu-1204-usb-installer-from-debianHere is how to write the Ubuntu ISO image to a USB stick from a Debian PCMon, 28 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/227/ubuntu-1204-install-nvidia-drivers-from-ppaHow do you install the latest Nvidia drivers in Ubuntu 12.04 Precise PangolinMon, 28 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/228/solved-raspberry-pi-wont-boot-red-power-led-onIf your Raspberry Pi won't boot then try these troubleshooting stepsMon, 28 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/229/debian-add-user-to-existing-groupHow do you add an additional group to a users set of groups?Tue, 29 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/230/postgresql-drop-unique-constraintHow to you drop a unique row constraint in PostgreSQL?Tue, 29 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/231/set-up-git-repository-on-debian-and-push-changes-from-local-repositoryHow to set up a remote git repository and populate it from a local repository on DebianThu, 31 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/232/permission-denied-homechrishtaccess-pcfgopenfile-unable-to-check-htaccess-file-ensure-it-is-readableApache 403 Forbidden error when trying to serve page from home directoryThu, 31 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/233/apache-mysql-php-quick-buildNeed to quickly get an Apache2 + MySQL + PHP5 server built?Thu, 31 May 2012 00:00:00 +0100 http://www.chrisnewland.com/av/234/git-revert-reset-a-single-fileHow to you undo uncommitted changes to a single file and revert it back to the previous version in git?Wed, 06 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/235/debian-linux-netbook-laptop-raspberry-pi-power-saving-with-acpitoolFind out the discharge rate of your battery in Debian using acpitoolWed, 06 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/236/solved-fuse-failed-to-open-devfuse-permission-denied-sshfsInstalled sshfs and get this /dev/fuse permission error? Here is the solutionFri, 08 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/237/getting-started-with-raspberry-piHow to get started with your Raspberry Pi, log in, update packages, inspect the systemSun, 10 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/238/install-java-on-the-raspberry-piHow to install the OpenJDK version of Java on your Raspberry PiSun, 10 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/239/getting-started-with-java-on-raspberry-piQuick HelloWorld compile and run exampleSun, 10 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/240/java-awt-graphics2d-anti-aliasing-in-a-java-11-compatible-way-using-reflectionHere is how to enable anti-aliasing in AWT using reflection in a way that is compatible with Java 1.1 AWTWed, 13 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/241/bat-and-ball-puzzleA puzzle to highlight cognitive bias. See if your brain takes the wrong shortcutWed, 13 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/242/git-fetch-changes-from-remote-repository-and-merge-them-with-your-local-changesHow do you bring your local repository up to date with the remote repo using git fetch and mergeThu, 14 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/243/ssh-chained-tunnels-to-access-servers-behind-gateway-machinesHow to chain ssh tunnels together to reach a server that is not public facingFri, 15 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/244/solved-no-sound-in-raspberry-pi-after-startx-x-windowsSound not working on your Raspberry Pi after entering X windows (startx) here is how to fix itSat, 16 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/245/resize-raspberry-pi-sd-card-partition-to-fill-32gb-card-from-a-running-raspberry-piHow do you dynamically resize the Raspberry Pi Debian 2GB image partition to make full use of a 32GB SD card?Mon, 18 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/246/mozilla-firefox-13-epic-security-fail-with-new-tab-thumbnailsMozilla needs to quickly fix the new tabs page so that it does not show thumbnail images from HTTPS protected content.Wed, 20 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/247/git-rebaseHow to rebase your changed branch with changes from the branch it came fromThu, 21 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/248/git-rebase-changes-depends-on-abandoned-changesHow to squash changes into a single commit to roll up changes to the latest write winsThu, 21 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/249/raspberry-pi-update-firmware-using-hexxehs-rpi-update-scriptHow to update the firmware on a Raspberry PiThu, 21 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/250/postgresql-varlibpostgresql84mainpgxlog-filling-up-with-wal-filesIf your postgres pg_xlog directory is filling up with 16777216 byte WAL files then your archive_command is failingFri, 22 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/251/raspberry-pi-heatsink-modHow to fit heatsinks to the SoC and USB chips on your Raspberry PiTue, 26 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/252/raspberry-pi-eth0-kevent-4-may-have-been-droppedA log file full of kevent 4 may have been dropped messages could indicate a power problem with your PiTue, 26 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/253/raspberry-pi-github-for-tracking-kernelfirmware-issuesWhere is the github repo for Raspberry Pi?Wed, 27 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/254/raspberry-pi-debian-wheezy-beta-is-now-available-2012-06-18How do you test Debian Wheezy on the Pi?Wed, 27 Jun 2012 00:00:00 +0100 http://www.chrisnewland.com/av/255/java-unsupported-major-minor-version-510Got this Java error when running a class compiled with a JDK7 javac?Mon, 02 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/256/java-trace-memory-leaks-with-hprof-and-verbosegcHow to use hprof and GC logging to track down a memory leak in a large Java application.Tue, 03 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/257/solved-debian-killall-command-not-foundSome of my Debian servers seem to be missing the killall command. Here is how to fix that.Wed, 04 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/258/solved-eclipse-dltk-indexing-very-slow-php-development-toolsIf you are using the PDT (PHP Development Tools) feature and Eclipse is hogging up your system doing DLTK indexing then this might helpMon, 09 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/259/solved-eclipse-java-autocomplete-not-workingAfter upgrading Eclipse my Java autocomplete suggestions (Ctrl-Space) stopped working. Here is how to fix itTue, 10 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/260/debian-squeeze-install-microsoft-ttf-truetype-fontsHow do you install Microsoft TrueType (TTF) fonts in Debian SqueezeTue, 10 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/261/java-cheat-sheet-for-angle-plotting-in-degrees-radians-and-pi-radiansQuick cheat sheet for plotting angles in JavaMon, 16 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/262/solved-sshfs-with-private-key-what-is-the-syntaxHow do you specify a private key when mounting an sshfs filesystem?Wed, 18 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/263/concatenate-2-files-in-linux-with-catHow do you concatenate (append) 2 files together in Linux?Wed, 18 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/264/debian-squeeze-nvidia-packagesWhich packages do I need to run multi-monitor setup with nvidia graphics on Debian?Mon, 23 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/265/solved-error-0x80070643-when-installing-or-updating-net-frameworkHere is how to solve error 0x80070643 when installing .NET 4 on Windows 7Sat, 28 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/266/php-strip-pound-signs-from-form-inputHow do you strip a pound sign from a monetary value in a PHP $_POST fieldTue, 31 Jul 2012 00:00:00 +0100 http://www.chrisnewland.com/av/267/solved-ssh-sshd-error-keyread-uudecodeThis error is caused by a line break in your authorized_keys file.Fri, 03 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/268/raspberry-pi-mount-raspbian-img-on-loop-deviceHere is how to mount the Raspbian Wheezy img file on a loop device under LinuxMon, 06 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/269/solved-raspberry-pi-wont-boot-6-flashes-of-led-after-rpi-updateAfter running rpi-update on my Raspbian Wheezy my Pi wouldn't boot and gave the 6 flashes error. Here is how to solve itMon, 06 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/270/word-insert-reference-to-custom-fieldHow do you reference a custom field within your documentFri, 10 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/271/eclipse-juno-set-tab-font-size-manuallyOn a netbook, the font size for Eclipse's tabs is far too large and there is no way to set it through the preferences, here is how to change it manually.Fri, 10 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/272/excel-join-columns-together-string-concatenationHow do you join two columns together in Excel?Mon, 13 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/273/xen-hypervisor-on-minimal-debian-squeezeHow to install Xen hypervisor through Debian squeeze with lvmTue, 21 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/274/which-debian-package-contains-the-svc-commandWhile installing qmail I found that the svc program was not installed. Here is how to install svc in DebianFri, 24 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/275/debian-find-which-package-contains-commandUse apt-file on Debian to discover which package you need to install to provide a commandFri, 24 Aug 2012 00:00:00 +0100 http://www.chrisnewland.com/av/276/mac-os-osx-add-jars-to-eclipse-build-path[SOLVED] How to add jar files to the Eclipse build path in osx when the jars are inside the Java library bundle?Wed, 19 Sep 2012 00:00:00 +0100 http://www.chrisnewland.com/av/277/linux-wipe-sd-card-partition-table[SOLVED] How to fix a corrupted partition table and fdisk is giving the error: You must set cylindersTue, 25 Sep 2012 00:00:00 +0100 http://www.chrisnewland.com/av/278/solved-raspberry-pi-panic-vfs-unable-to-mount-root-fs-on-unknown-block1792Entering kdb (current=0xcb82ac80, pid 1) due to Keyboard EntryTue, 25 Sep 2012 00:00:00 +0100 http://www.chrisnewland.com/av/279/git-unstage-changes-roll-back-a-commitHow do you roll back a commit in git?Fri, 28 Sep 2012 00:00:00 +0100 http://www.chrisnewland.com/av/280/mac-os-x-install-subversion-using-macportsHow to install svn on the command line in OS XWed, 10 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/281/mac-os-x-mount-remote-filesystem-locally-using-sshfsHow to mount sshfs filesystem in OS X (using MacPorts)Thu, 11 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/282/ssh-socks-5-proxy-and-firefox-for-securing-traffic-on-untrusted-networksHow to use ssh as a SOCKS 5 proxyThu, 11 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/283/virtualbox-tips-for-mac-os-xHow to connect to a remote Virtualbox guest from your MacThu, 11 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/284/solved-virtualbox-headless-vrde-server-failed-to-startVRDE server is inactive. If you get this error make sure that the VM config does not contain any VRDE parameters that are no longer valid!Thu, 11 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/285/mac-os-x-netstat-show-pid-process-idOn most Linux flavours, netstat can show the process using the port with the -p switch. Here is how to get the same information on OS XThu, 11 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/286/solved-stop-0x0000007b-0xf78d25240xc00000340x000000000x00000000How to solve the STOP 0x0000007B error when installing WindowsMon, 15 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/287/solved-find-missing-network-drivers-windows-xpHow to find a missing ethernet network driver using the PCI codes after installing windowsMon, 15 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/288/analyse-your-website-and-webserverCheck your website for security, SEO, correctnessThu, 18 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/289/objective-c-for-java-programmersTranslating Java code into Objective CThu, 25 Oct 2012 00:00:00 +0100 http://www.chrisnewland.com/av/290/solved-php-unexpected-tpaamayimnekudotayimWhat does unexpected T_PAAMAYIM_NEKUDOTAYIM mean and how do you solve it?Fri, 09 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/291/xen-delete-vmHow to remove a vm from your hostMon, 12 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/292/solved-debian-java-no-such-file-or-directoryCan't get java to run on Debian even though permissions look correct?Tue, 13 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/293/using-php-mysql-with-utf-8-support-for-correct-encodingIf you are having problems with non-ASCII encodings such as the British pound sign then you are probably not using UTF-8 all the way through your HTML, PHP, and database.Tue, 13 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/294/remote-syslog-over-secure-tunnelSend your syslog securely to a remote server using syslog-ng and stunnelSun, 18 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/295/raspberry-pi-java-applets-iceweasel-openjdk-icedtea-plugin-hardfloatHow do you get Java applets working on the Raspberry Pi?Mon, 19 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/296/linux-reset-root-password-using-grubHow to reset the root password of a Linux box if you have physical accessTue, 20 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/297/wearable-raspberry-pi-projectBuilding a wearable computer using the Raspberry PiThu, 22 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/298/git-delete-branchHow to delete a local branch it gitFri, 23 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/299/raspberry-pi-wireless-config-for-edimax-ew-7811unHow to configure the tiny Edimax EW-7811UN wireless adapterSun, 25 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/300/solved-qmail-unabletochdirtomaildir421How to solve this error when setting up a new qmail serverTue, 27 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/301/grep-tipsUseful switches for grepThu, 29 Nov 2012 00:00:00 +0000 http://www.chrisnewland.com/av/302/solved-xen-domu-console-hangsHow to solve hang on xm console with Debian guestTue, 04 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/303/debian-iceweasel-keyexpired-1352888501How to install updated keys for Debian Mozilla packagesWed, 05 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/304/scp-through-ssh-tunnelHow to secure copy files to a machine behind a gateway using ssh and scpTue, 11 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/305/ncurses-type-applications-in-java-on-raspberry-pi-lanterna-consoleHeadless Java console applications using Google Code's LanternaWed, 12 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/306/xen-dynamically-change-ram-allocated-to-domuHow do you reduce the amount of RAM allocated to a domUWed, 12 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/307/openjdk-icedtea-plugin-java-debuggingHow to get Java debug output when using OpenJDK IcedTea pluginWed, 12 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/308/osx-take-screenshotHow do you take a screenshot in Mac OSXFri, 21 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/309/applet-graphics-corruption-in-java-7-update-10-11-13-on-mac-osxA change in Java 7 update 10 on the Mac OSX operating system means that some applets are now showing graphics corruptionFri, 21 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/310/debian-batch-process-resize-jpeg-files-using-imagemagick-into-output-folderHow do you batch process images in Debian and output into a new folder?Wed, 26 Dec 2012 00:00:00 +0000 http://www.chrisnewland.com/av/311/gpg-crib-sheetEncryption and decryption using gpg (GNU Privacy Guard)Wed, 02 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/312/debian-nfs-serverHow to set up an NFS server to share files with other Linux clientsWed, 02 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/313/linux-fdisk-and-mkfsext4-quick-guideQuickly partition and format a Linux hard drive with ext4Wed, 02 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/314/mac-osx-batch-convert-png-to-jpeg-with-quality-settingUse the command line program sips to batch convert PNG to JPEG with quality parameterWed, 02 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/315/mac-osx-crib-sheetKeyboard shortcuts and useful commands for Mac OSXThu, 03 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/316/virtualbox-on-mac-osxTips and locations for using Virtualbox on a Mac OSX hostThu, 03 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/317/high-performance-modulo-operationIf you are using modulo to select a processor for an input then this clever trick can give you a performance boostWed, 09 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/318/deployjavajs-fails-to-install-java-when-java-not-presentMore problems with Oracle's deployJava.js scriptTue, 15 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/319/juschedexe-still-running-after-java-uninstalledThe Java uninstaller is not cleaning up the Java update schedulerTue, 15 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/320/eclipse-cant-find-import-javafxTrying to get the JavaFX samples running under Eclipse with the latest JDK 1.7.11Wed, 16 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/321/javafx-ensemble-sample-wont-run-from-eclipse-due-to-bad-server-configRunning the main method in the JavaFX sample src/Ensemble/Ensemble2.java gives the following errorWed, 16 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/322/java-applet-deployment-using-deployjavajsA list of problems and workarounds for detecting Java and launching your applet in the browserWed, 16 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/323/using-java-jarsigner-to-check-a-jar-signatureHow do you check the signature of a Java jar?Thu, 17 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/324/generate-apache2-openssl-key-and-certificate-signing-request-csrHow do you generate a key and CSR for apache2Mon, 07 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/325/linux-high-load-when-writing-to-slow-block-devices-sd-cards-usb-hard-drivesExplanation for why some SD card writes send the system load soaringFri, 18 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/326/debian-upgrade-to-linux-kernel-32How to upgrade to the 3.2 kernel seriesSun, 20 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/327/postgresql-output-query-result-to-fileHow do you dump the results of a SELECT query to a file?Mon, 28 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/328/using-vi-as-a-hex-editorHow do you enable hex view in vi?Mon, 28 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/329/php-generate-stack-traceHow do you create a stack trace in PHP?Mon, 28 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/330/updated-tutorial-for-jdk8-early-access-on-raspberry-piHow to install Oracle JDK8 early access on the PiTue, 29 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/331/java-on-mac-osx-108-safari-broken-by-xprotectmetaplist-whitelist-updateApple have updated the Safari plugins whitelist with an incorrect version of JavaThu, 31 Jan 2013 00:00:00 +0000 http://www.chrisnewland.com/av/332/javafx-mediaplayer-crash-debian-amd64-playing-mp3-and-displaying-graphicsJRE 7.0_13-b20 crashes randomly playing any mp3 when also rendering graphicsMon, 18 Feb 2013 00:00:00 +0000 http://www.chrisnewland.com/av/333/debian-squeeze-scponly-for-secure-remote-backupsHow to set up scponly for securely copying backups to a remote serverWed, 06 Mar 2013 00:00:00 +0000 http://www.chrisnewland.com/av/334/linux-increase-console-resolutionHow to increase the text console resolution in LinuxWed, 06 Mar 2013 00:00:00 +0000 http://www.chrisnewland.com/av/335/postgresql-add-cascade-to-existing-foreign-key-constraintIf you created a foreign key constraint but forgot to add cascading updates here is how to fix itFri, 08 Mar 2013 00:00:00 +0000 http://www.chrisnewland.com/av/336/debian-perl-cant-locate-datecalcpm-in-inc[SOLVED] Date/Calc.pm error in Debian perl can be resolved by installing this packageMon, 11 Mar 2013 00:00:00 +0000 http://www.chrisnewland.com/av/337/clear-linux-buffers-cache-when-benchmarking-filesystemIf you are trying to optimise a filesystem operation, remember to clear Linux buffers and cache between benchmarks or some of the file reads will be served from memory!Tue, 12 Mar 2013 00:00:00 +0000 http://www.chrisnewland.com/av/338/eclipse-job-found-still-running-after-platform-shutdownHow to clean up Eclipse after a crash that prevents it from starting normallyFri, 12 Apr 2013 00:00:00 +0100 http://www.chrisnewland.com/av/339/solved-java-7-update-21-mixed-code-warning-dialog-with-signed-appletNew security feature in 7u21 causes warnings on Java<-->JavaScript communicationWed, 17 Apr 2013 00:00:00 +0100 http://www.chrisnewland.com/av/340/solved-virtualbox-causes-xorg-server-segfault-on-startup-of-xp-guest-vmXorg update on 20130417 causing segfault and X restart when VirtualBox VM startsFri, 19 Apr 2013 00:00:00 +0100 http://www.chrisnewland.com/av/341/git-stashHow to use the stash to put aside changes you don't want to be rebasedWed, 24 Apr 2013 00:00:00 +0100 http://www.chrisnewland.com/av/342/what-is-the-at-sign-in-osx-file-attributesThe @ (at sign) means the file has extended attributes such as the quarantine attribute which can prevent certain actions being taken on the fileMon, 29 Apr 2013 00:00:00 +0100 http://www.chrisnewland.com/av/343/avoiding-dantes-9th-circle-of-hell-hint-git-branchQuick guide to using git branch to keep those changesets apart and avoid getting into merge/rebase/stash hellWed, 01 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/344/cross-platform-swt-dispatch-loop-idiomSolution to Exception Display must be created on main thread due to Cocoa restrictionsWed, 01 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/345/jenkins-ci-quickstart-guideQuickstart guide to Jenkins Continuous Integration with Tomcat, ant, and svnThu, 09 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/346/iphone-how-to-kill-an-appHow do you kill a running app on the iPhoneWed, 15 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/347/javascript-prototype-idiom-for-oo-designA programming idiom to simulate OO design in JavaScriptWed, 15 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/348/refactoring-old-style-java-synchronized-code-with-copyonwritearraylist-and-collectionsunmodifiablelistWhile refactoring some old core code I've learnt a better way to make read-only List copies using java.util.concurrentWed, 29 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/349/using-tcpkill-to-simulate-dropped-packets-and-test-your-network-error-handling-codeSimulate network failures to test your error handling codeFri, 31 May 2013 00:00:00 +0100 http://www.chrisnewland.com/av/350/builder-patternThe builder design pattern lets you construct objects with many or optional parameters without having to write multiple overloaded constructors.Tue, 04 Jun 2013 00:00:00 +0100 http://www.chrisnewland.com/av/351/iphone-skip-music-tracks-without-unlockingHow do you change tracks on the iPhone without unlocking it?Tue, 04 Jun 2013 00:00:00 +0100 http://www.chrisnewland.com/av/352/iphone-forensics-how-to-recover-deleted-messages-from-sms-imessage-call-history-whatsappGuide to recovering deleted SMS, iMessages, calls, and WhatsApp chats from an iPhoneSat, 08 Jun 2013 00:00:00 +0100 http://www.chrisnewland.com/av/353/osx-encode-mp3-on-command-lineUse MacPorts to install the lame encoderMon, 10 Jun 2013 00:00:00 +0100 http://www.chrisnewland.com/av/354/java-jit-analysis-and-code-coverageI am building a tool to visualise how much of a program's code is JIT compiled at runtimeWed, 12 Jun 2013 00:00:00 +0100 http://www.chrisnewland.com/av/355/reference-manual-index-java-php-javascriptURLs for programming language reference documentsTue, 18 Jun 2013 00:00:00 +0100