IP Failover (proof of concept) Essentially the idea is that if your primary web server goes down, your backup server automatically takes over (failover). When your primary server is back online, it takes over again (failback). It sounds simple, but it can be very complicated and expensive to eliminate all the single points of failure […]

This is a follow up to my previous post dmraid error reporting by email, this time for a hardware raid controller, this one is the 3ware/AMCC 9550SXU-8L. The concept is exactly the same, the only thing different is the script that checks the raid array status. We will be using the command line tool tw_cli […]

dmraid is a software raid/fakeraid/onboard raid tool. As far as I can tell, the only error reporting that dmraid does is by hooking into logwatch – which emails me a very long file I don’t often read and I would like to know immediately if my raid array is degraded. This works for me on […]

I couldn’t find a function online that copies folders recursively in PHP and actually works, so I wrote my own: function recursiveCopy($src, $dest) { if (is_dir($src)) $dir = opendir($src); while ($file = readdir($dir)) { if ($file != ‘.’ && $file != ‘..’) { if (!is_dir($src.’/’.$file)) copy($src.’/’.$file, $dest.’/’.$file); else { @mkdir($dest.’/’.$file, 0750); recursiveCopy($src.’/’.$file, $dest.’/’.$file); } //else […]

After my previous post, Javascript (JQuery): Social networking feeds all in one place, Facebook went and added authentication to the feed retrieval. After much head-scratching, this is how to enable the Facebook feed under the new OAuth system. You need an access token to get to the data, so what we are going to do […]

Today we are going to get feeds from Twitter, Facebook, Youtube and Flickr all in one place for your website using JSON and the JQuery library: Be careful on this page with wrapped lines! Firstly we declare the jquery library in our head section (obviously download it first and change the path to match your […]

None of the vacation/forwarding plugins work with Virtualmin so this is my workaround. Firstly, users need to be created as Mail and FTP users, since we will be using FTP to place the .forward files. Download and unzip the plugin: wget http://downloads.sourceforge.net/project/rcubevacation/vacation-1.9.9.zip?use_mirror=ovh&ts=1280145947 unzip vacation-1.9.9.zip cd vacation vi config.ini We are going to use Usermin’s own […]

I can never get the Virtualmin binary file compilation to work properly, so here’s my workaround to enable changing a user’s Virtualmin password in Roundcube Webmail. Firstly, let’s go to the plugins/password directory (your path will be different): cd ~username/public_html/webmail/plugins/password cp config.inc.php.dist config.inc.php vi config.inc.php We need to change the password driver to virtualmin (hit […]

The ffmpeg installed by yum cannot be used with ffmpeg-php, so we need to download and compile it: cd ~admin/software wget http://www.ffmpeg.org/releases/ffmpeg-0.6.tar.gz tar zxfv ffmpeg-0.6.tar.gz cd ffmpeg-0.6 ./configure –enable-shared make make install Now we need to download and configure ffmpeg-php: cd ~admin/software wget http://downloads.sourceforge.net/project/ffmpeg-php/ffmpeg-php/0.6.0/ffmpeg-php-0.6.0.tbz2?use_mirror=puzzle&ts=1278667907 tar -xjf ffmpeg-php-0.6.0.tbz2 cd ffmpeg-php-0.6.0 phpize ./configure There’s an error in […]

The first step is to vanilla install PHP 5.2 (to handle any dependency issues) and then recompile it with the t1lib option. So enable the testing repo of CentOS 5. Change to root user first, then create the repo: su – vi /etc/yum.repos.d/CentOS-Testing.repo Enter insert mode (hit i) and paste the following into the new […]