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CentOS 5.2 Tutorials CentOS 5.3 Tutorials CentOS 5.4 Tutorials CentOS 5.5 Tutorials

Dell and CentOS the Perfect Combination

A quick post to share this mostly unknown gem that Dell manages it’s own Open Manage Linux Repository.

Read more: http://linux.dell.com/wiki/index.php/Repository/OMSA

To get your CentOS server installed with Server Administrator set up the Dell Open Manage Repository like so:

# wget -q -O - http://linux.dell.com/repo/hardware/latest/bootstrap.cgi | bash

Then install the Server Administrator

# yum install srvadmin-all

Finally browse to your newly installed Open Manage Server Administrator and monitor your Dell hardware.

https://your.Centos.Server:1311/

Log on screen – Use your root username and password

Dell Open Manage Server Administrator

Main Screen after log on

Dell Open Manage Server Administrator Main

TIP: After installing the Dell Server Administrator get your service tag number from your CentOS Linux server by running

# dmidecode -s system-serial-number
ABCDEF1
Categories
CentOS 5.2 Tutorials CentOS 5.3 Tutorials CentOS 5.4 Tutorials CentOS 5.5 Tutorials

Gentoo lost and Debian losing to CentOS

If Linux distributions were stocks and you an investor you wish you’d have invested in CentOS. Time to sell what’s left and get yourself some steady and stable CentOS stocks, well at least according to Google Insights.

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CentOS 5.2 Tutorials CentOS 5.3 Tutorials CentOS 5.4 Tutorials CentOS 5.5 Tutorials

CentOS: The most popular Linux distribution for web servers

It’s a great day for CentOS and its community because, according to Web Technology Surveys, in July 2010, “For the first time, CentOS is now leading the Linux distribution statistics on web servers with almost 30% of all Linux servers.”

CentOS Webserver survey

Read more at W3Techs

Categories
CentOS 5.4 Tutorials CentOS 5.5 Tutorials

Upgrading CentOS 5.4 to 5.5

Before upgrading CentOS 5.4 to 5.5 it cannot be stressed enough how important it is to make a backup of your system before you do this. Actions listed in this post are written with the assumption that they will be executed by the root user running the bash or any other modern shell.

Clean All Packages

# yum clean all

The following command will get a list of packages that are going to be updated.

# yum list updates

Lets begin upgrading CentOS 5.4 to 5.5

# yum update

Finally reboot the server for Kernel changes to take effect

# reboot

Verify that CentOS 5.5 is working:

# cat /etc/redhat-release
CentOS release 5.5 (Final)

Or you can use the lsb_release command:

# lsb_release -a
LSB Version:    :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: CentOS
Description:    CentOS release 5.5 (Final)
Release:        5.5
Codename:       Final