====== CentOS ======

  * [[CentOS Apache]]
  * [[CentOS Bare Stack]]
  * [[CentOS Deployment]]
  * [[CentOS Networking]]
  * [[CentOS Kickstart]]
  * [[CentOS HortonWorks]]
  * [[CentOS PHP]]
  * [[CentOS Salt]]
  * [[CentOS Xen]]
  * [[Horton Works]]
  * [[Linux ISOs]]

=== Software ===

  * [[chkconfig]]
  * [[ntsysv]]
  * [[rpm]]
  * [[yum]]

== What repositories are used by default? ==

^ repo id ^ repo name ^
| base | CentOS-5 - Base |
| extras | CentOS-5 - Extras |
| updates | CentOS-5 - Updates |

== How to edit repositories ==

== Notes ==

Some times yum looks for perl URI, but can't find it.  Here is a workaround:

<code>
wget http://mirror.centos.org/centos/5/os/i386/CentOS/perl-URI-1.35-3.noarch.rpm
rpm -Uvh perl-URI-1.35-3.noarch.rpm
</code>

==== Network Install ====

Server: mirrors.kernel.org

Path:   centos/5/os/i386

For CentOS 6:

Path: http://archive.kernel.org/centos-vault/6.6/os/x86_64/

If you want to do a text install, add ''text'' to the boot options from the SYSLINUX menu.

==== Basics ====

<code>
yum update
yum -y install screen yum-utils yum-protect-packages yum-protectbase
</code>

==== Services ====

== See running services ==

<code>service --status-all | less</code>

== Manage a service ==

<code>service <name> [start|stop|status|restart]</code>

== Manage service configurations ==

See ''/etc/sysconfig''

== Add, remove a service from startup ==

ncurses interface

<code>ntsysv</code>

manually

<code>
chkconfig --add <service>
chkconfig --del <service>
</code>

== Create my own service to run at startup ==

Add it in /etc/init.d, make it executable, then ''chkconfig service on''

==== System ====

== Install development tools ==

<code>
yum groupinstall 'Development Tools'
</code>

== Edit environment variables ==

Edit ''/etc/environment''

== Edit cron jobs ==

<code>crontab -e</code>

== Send outgoing email ==

<code>echo <message> | mailx -s <subject> <address></code>

==== Helpful Links ====

  * [[http://wiki.centos.org/HowTos|CentOS Wiki: HowTos]]
  * [[http://wiki.centos.org/FAQ/CentOS5|CentOS 5 FAQ]]
  * [[http://blog.hbcom.info/archives/54|Disable system beep]]
  * [[http://www.cyberciti.biz/faq/rhel-centos-fedora-linux-yum-command-howto/|Yum FAQ]]