If a server running MongoDB crashed or MongoDB did not get to shut down cleanly for some other reason, you may not be able to start Mongo again, getting “exception in initAndListen std::exception: old lock file, terminating” error in Mongo error log. Fix is actually pretty easy, you just need to locate mongod.lock file and...

Let’s start with setting up a developer account. Please note: “:developername” should be replaced with whatever your unix user name you want to be when developing (“irakli” in my case). ERROR: Loading command: install (LoadError) no such file to load -- zlib Install Latest Nginx From Source: $ sudo apt-get install libc6 libpcre3 libpcre3-dev libpcrecpp0...

Debian Lenny only provides Git 1.5.x out of the box, which is a pretty old git version. Following simple steps show how to update/build git from source: $ sudo apt-get install tcl $ sudo apt-get install tk $ sudo apt-get install python-software-properties $ sudo apt-get install zlib1g-dev $ sudo apt-get install build-essential autoconf $ cd...

We start by installing dotdeb APT repository to get easy access to the latest .deb packages for some of our components like NginX, PHP stack etc. $ sudo su - # echo "deb http://packages.dotdeb.org stable all" >> /etc/apt/sources.list # echo "deb-src http://packages.dotdeb.org stable all" >> /etc/apt/sources.list # echo "deb http://php53.dotdeb.org stable all" >> /etc/apt/sources.list #...

Following instructions were tested on a RackSpace Cloud Server. It should work for any other reasonably configured, mostly bare-bones Debian Lenny and latest Ubuntu (e.g. on other popular hosting options like: SliceHost, Linode etc.). First, let’s install some essentials: $ sudo apt-get update $ sudo apt-get upgrade $ sudo apt-get install build-essential $ gcc -v...

Default bash prompt is limited. Good news is that it’s highly customizable. Personally I have two requirements to bash prompt: I want two levels of folder hierarchy displayed (one is too confusing, full path is too long) I use Git for all my code (when I have it my way), so I want to see...

*Update*: Brew packages have changes so new way of getting things done:\ > brew tap josegonzalez/homebrew-php > brew install php53 --with-mysql --with-fpm > brew install php53-apc *Older instructions*: I am not a fan of MAMP, XAMPP or other pre-packaged Apache/PHP distributions, in general. Ever since OS-X started moving towards being POSIX-compliant operating system and equally...

There are many benefits of using JRuby with Rails, among others: great thread-support via JVM, easy integration with the vast amount of functionality provided by existing Java libraries, streamlined database access and deployment. We have blogged about installing latest Rails with native Ruby and NginX. In the following blog post we will go through the...

Drupal uses extended version of SimpleTest for automated testing. It provides two parent classes for test cases: DrupalWebTestCase and DrupalUnitTestCase. Documentation describes the DrupalWebTestCase as the one appropriate for “typical Drupal tests”. However, a quick look at its setUp method is enough to notice that when this class is used a lot is done at...

Make sure you have epel Yum repo installed, if you don’t: $ sudo rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm Please note that the above instructions are for a 64-bit architecture, on a 32-bit architecture: $ sudo rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm Make sure you have working version of JDK 6 (including the compiler), if not install it by running: $...

This tutorial assumes that you are working with the local account on CentOS 5.x and sudo into root as necessary. Configuring Yum Yum is a popular package manager for CentOS and RedHat Linux distributions. Unfortunately, standard Yum repositories carry significantly outdated packages. Fortunately, there are third-party Yum repositories with more updated LAMP packages which we...

If you ever need to create a Drupal core patch, you may need to check-out main branch of the appropriate version. CVS URLs for those are not easy to find, so here they are: Drupal 5:\ cvs -d:pserver:anonymous:anonymous@cvs.drupal.org:/cvs/drupal -z6 checkout -d drupal-5 -r DRUPAL-5 drupal Drupal 6:\ cvs -d:pserver:anonymous:anonymous@cvs.drupal.org:/cvs/drupal -z6 checkout -d drupal-6 -r DRUPAL-6...

The best way to install MongoDB on yum-enabled Linux distributions (CentOS or Fedora) is through yum package manager. MongoDB.org provides repositories (depending on your OS and CPU architecture) that you should add to your list of yum repos: http://www.mongodb.org/display/DOCS/CentOS+and+Fedora+Packages Once you have the repository properly installed under /etc/yum.repos.d you can install the latest stable mongoDB...

In httpd.conf:\ LoadModule status_module modules/mod_status.so SetHandler server-status Order deny,allow Deny from all Allow from 111.222.333.444 ExtendedStatus On where 111.222.333.444 is the IP of your server.

Got an error today I have never seen before (shocker) while trying to set up something on Debian Lenny. Took a while to find the culprit, but when I did it was so annoying, decided to share it here in case it saves headache to somebody else. So, I was just trying to run a...