How to get systems administrators and developers to agree with Docker — opensource.com

The use of Docker as an application container management system has become standard practice for developers and systems engineers in the space of just two years. Some like to say that haven’t seen such a technological advance since OpenSSH. Docker is now a major player and is widely used in cloud systems architectures. But more than just that: Docker knows how to win developers over.

Continue reading “How to get systems administrators and developers to agree with Docker — opensource.com”

How to Install RHQ on CentOS 6.5

Install PosgreSQL

3.1.1. Type ‘yum install postgresql*’ making sure to include the asterisk (*)
3.1.2. Type ‘y’ when prompted (happens twice)

Confirm java version

4.1.    Type ‘java –version’
4.2.    Confirm it’s running at least 1.6 and using OpenJDK (or Oracle/Sun Java or JRockit, but NOT GNU Libgcj)

Continue reading “How to Install RHQ on CentOS 6.5”

Time to Replace Windows XP OS with Linux OS on same old PC’s

It is a right time to move for something very exciting stuff  “Open Source Software” by replacing Windows XP or Windows OS with Linux Operating System on same old PC without  paying Licensing fees.

After April 8th 2014, no support for Windows XP from Microsoft Inc. will be available for Windows XP users, also no security updates or patches for XP, no updates for MS Security Essential Anti Virus for Windows XP.

Continue reading “Time to Replace Windows XP OS with Linux OS on same old PC’s”

Urdu CBT Linux System Administration SQUID – 6/15 User Authentication 2/2

This is an old CBT (created in 2006). It explains how you can configure squid cache service. This video explains how to configure user based authentication.

Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

Urdu CBT Linux System Administration SQUID 2/15 Transparent Proxy

This is an old CBT (created in 2006). It explains how you can configure squid cache service. This video covers transparent proxy.

Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

Urdu CBT Linux System Administration SQUID 1/15

This is an old CBT (created in 2006). It explains how you can configure squid cache service.

Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

Urdu CBT Linux System Administration qmail 6/7 Client Configuration

This is an old/dated CBT (created in 2006). It explains how you can configure qmail SMTP server (written by Dan Bernstein), with all the bells and whistles, using steps outlined by the creator of qmailrocks.com website (now de-functional). The qmailrocks guide was somewhat in-sufficient in explaining how qmail actually works. It just spoon-feeds you the steps to do (copy/paste). I was learning qmail myself when I created these CBTs, so there are areas in this CBT which are weak. I don’t recommend this CBT to be used to setup a production qmail server. It has only been uploaded for archiving reason. If you really want to learn qmail, the best sources are “Life with Qmail” and John Simpson’s “http://qmail.jms1.net/” .

Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com