Linux

This guide will show how to install additional PHP version (in this tutorial we will install PHP version 5.6. Check my post here for PHP 7.0) on CentOS 7 by using the Software Collections and have Virtualmin detect and use it. What requires me to perform this is because I need to install Drupal 8 which requires PHP version 5.5.9 or higher but as of this writing CentOS 7 only provides PHP version 5.4.16 plus I don't want to affect the system version of the default PHP package installed from system distribution.

We know that Nginx is more faster than Apache and most of us prefer to replace Apache with Nginx as their web server. Nginx is known to serve faster static content and run with less RAM. As of this writing, Virtualmin supports Apache as its web server. To take advantage of Nginx, we will install it as reverse proxy for Apache and continue using Virtualmin to manage your domains (Note: this article will assume that the Nginx and Apache are running on same server).

Virtualmin GPL is a free multiple virtual hosts manager. It is like Plesk or Cpanel that supports the creation and management of Apache virtual hosts, BIND DNS domains, MySQL databases, etc. This tutorial will show how to setup Virtualmin on a fresh server with limited resources.

It is assumed that you don't have any previous installation of Virtualmin. The following procedures are tested on my Linode server running Centos 7 64-bit Linux distribution.

Adding Pagespeed module in Apache is very easy with package manager:

sudo yum install at # if you do not already have 'at' installed
sudo rpm -U mod-pagespeed-*.rpm

... but if we want to add Pagespeed module in Nginx, first thing we think of is compiling its source along with the Pagespeed module. What if Nginx is installed in our server from yum or rpm? The process we need is to repackage RPM and that is what this tutorial will show.

I was looking for a admin web interface for mongoDB just like PHPMyAdmin for My SQL and found RockMongo a good one. In this article will show how to setup RockMongo using the authentication created in your mongoDB service. Please checkout this article Setup Drupal 7 Panopoly distribution with mongoDB on CentOS 7 if you haven't setup your mongoDB service and its PHP driver in your server.

I am developing a PHP application that requires converting mp3 to ogg audio format and this will be run on CentOS 7 Linux distro. The ffmpeg is perfect application to accomplish this task. The following steps are tested running on my Linode server running Centos 7 64-bit.

The mongoDB provides high performance, high availability, and easy scalability. Using it with Drupal, will take some load off its SQL database. The read/write SQL procedures in Drupal functions like: session, log entries from watchdog, cache, fields, queue and block can be handled by mongoDB Drupal module. And this will greatly improve the perfomance of your Drupal site.

The following Linux commands compilation are my personal Linux commands that I find useful in my daily work:

Display running tasks:

top

or

htop

Display current process running:

ps ax

or