Category: Tips and Tricks

Learn | Teach Open Source Technologies

Bugzilla Setup on CentOS 6

About What is Bugzilla? Bugzilla is a “Defect Tracking System” or “Bug-Tracking System”. Defect Tracking Systems allow individual or groups of developers to keep track of outstanding bugs in their product effectively. Most commercial defect-tracking software vendors charge enormous licensing fees. Despite being “free”, Bugzilla has many features its expensive counterparts lack. Consequently, Bugzilla has…
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Installing Nagios core on RHEL / CENTOS 5.x – RHEL / CentOS 6.x Fedora 15/16/17/18/19/20

What is Nagios An enterprise-class monitoring and alerting solution that provides organizations with extended insight of their IT infrastructure before problems affect critical business processes. Requirements We require following things for Installing Nagios: These are Just Pre-requisites. We need them to other things work … 1. Apache and PhP (php is optional) 2. gcc, glib,…
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Urdu CBT Embracing Linux Fedora 009 Basic Commands Part 10/16

This CBT demonstrates the use of basic Linux commands. Author: Muhammad Kamran Azeem Courtesy: http://wbitt.com

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Urdu CBT Embracing Linux Fedora 009 Basic Commands Part 9/16

This CBT demonstrates the use of basic Linux commands. Author: Muhammad Kamran Azeem Courtesy: http://wbitt.com

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Urdu CBT Embracing Linux Fedora 009 Basic Commands Part 8/16

This CBT demonstrates the use of basic Linux commands. Author: Muhammad Kamran Azeem Courtesy: http://wbitt.com

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Urdu CBT Embracing Linux Fedora 009 Basic Commands Part 7/16

This CBT demonstrates the use of basic Linux commands. Author: Muhammad Kamran Azeem Courtesy: http://wbitt.com

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Urdu CBT Embracing Linux Fedora 009 Basic Commands Part 6/16

This CBT demonstrates the use of basic Linux commands. Author: Muhammad Kamran Azeem Courtesy: http://wbitt.com

Postfix Mail Delivery SMTP Troubleshooting

To avoid delay in emails, specially for gmail. Just find which MX is working by issuing below commands: # dig mx gmail.com # telnet mx-IP/name 25 upon success, just see the name of first mx tried from /var/log/maillog and add an entry in /etc/hosts file. In my case, the entry is given below: # vim…
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HTop – CPU, Memory & Process Monitoring Utility in Linux by Qasim Mehmood

Htop is a text-mode, interactive process viewer for Linux run via console/ssh, and to install htop on Linux is a pretty simple task. Among other things, htop allows you the following: Quickly view key performance statistics such as CPU(multi-core layout), Memory and Swap usage Details. Scroll the process list vertically and horizontally to see all processes and complete…
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Virtual Box Machine Settings Urdu CBT by Babar Zahoor

Virtual Box Machine Settings Virtual Box Machine Settings Urdu CBT by Babar Zahoor (Source: http://vimeo.com/)