Urdu CBT-Linux System Administration-005-BIND DNS-2/6

This CBT shows how to configure BIND domain name server (DNS) on CENTOS through CLI. Valid for Fedora, RHEL, CENTOS, and any other distribution derived from these.
Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

Urdu CBT-Linux System Administration-005-BIND DNS – 1/6

This CBT shows how to configure BIND domain name server (DNS) on CENTOS through CLI. Valid for Fedora, RHEL, CENTOS, and any other distribution derived from these.
Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

Urdu CBT Linux System Administration-003-Apache Web Server – 1/5

This CBT shows how to configure Apache Web Server on CENTOS through CLI. Valid for Fedora, RHEL, CENTOS, and any other distribution derived from these.

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

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, glibc-common, gd and gd-devel

Continue reading “Installing Nagios core on RHEL / CENTOS 5.x – RHEL / CentOS 6.x Fedora 15/16/17/18/19/20”

HTop – CPU, Memory & Process Monitoring Utility in Linux by Qasim Mehmood

Htop

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 command lines.
  • Kill processes by selection rather than entering process number, use mouse to select list items.
  • PuTTY (the Telnet and SSH client) can be used for the interface at client.

How to install Htop

You can easily install htop on CentOS 6.x using yum, but first you need to install the rpmforge package repository applicable to your architecture 32bit or 64bit (if already not installed) by using the following commands:

Install RPM for CentOS 6.x

32-BIT

wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm
rpm -Uhv rpmforge-release*.rf.i386.rpm

64BIT

wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm

rpm -Uhv rpmforge-release*.rf.x86_64.rpm

Once the repository is installed, all you need to do to install htop in CentOS is run the following:

yum install htop

Now run the following command at command prompt or in PuTTy to start htop processes viewer.

htop

After the installation of Htop, you can view the manual and other utilities of Htop, with the following commands.

[qasim@server ]# man htop                                           To view manual of htop, having complete details.

[qasim@server ]#htop -h                                                 To view different options/plug-ins.

[qasim@server ]#htop -u username                            To view the active user’s currently running processes information.

[qasim@server ]#htop -u qasim                                    To view the qasim’s currently running processes information.

[qasim@server ]#htop -u root                                       To view the root’s currently running processes information

 

Virtual Box Machine Settings Urdu CBT by Babar Zahoor

Virtual Box Machine Settings

Virtual Box Machine Settings Urdu CBT by Babar Zahoor