Here are the outputs, thank:
Code:
root@v12ca [~]# lsattr /etc/services
----i--A----- /etc/services
root@v12ca [~]# ls -l /etc/services
-rw-r--r-- 1 root 362031 Feb 23 2006 /etc/services
root@v12ca [~]# yum repolist all
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror-la.7x24web.net
* extras: mirror.5ninesolutions.com
* updates: mirrors.usc.edu
Excluding Packages in global exclude list
Finished
repo id repo name status
C5.0-base CentOS-5.0 - Base disabled
C5.0-centosplus CentOS-5.0 - Plus disabled
C5.0-extras CentOS-5.0 - Extras disabled
C5.0-updates CentOS-5.0 - Updates disabled
C5.1-base CentOS-5.1 - Base disabled
C5.1-centosplus CentOS-5.1 - Plus disabled
C5.1-extras CentOS-5.1 - Extras disabled
C5.1-updates CentOS-5.1 - Updates disabled
C5.2-base CentOS-5.2 - Base disabled
C5.2-centosplus CentOS-5.2 - Plus disabled
C5.2-extras CentOS-5.2 - Extras disabled
C5.2-updates CentOS-5.2 - Updates disabled
C5.3-base CentOS-5.3 - Base disabled
C5.3-centosplus CentOS-5.3 - Plus disabled
C5.3-extras CentOS-5.3 - Extras disabled
C5.3-updates CentOS-5.3 - Updates disabled
C5.4-base CentOS-5.4 - Base disabled
C5.4-centosplus CentOS-5.4 - Plus disabled
C5.4-extras CentOS-5.4 - Extras disabled
C5.4-updates CentOS-5.4 - Updates disabled
C5.5-base CentOS-5.5 - Base disabled
C5.5-centosplus CentOS-5.5 - Plus disabled
C5.5-extras CentOS-5.5 - Extras disabled
C5.5-updates CentOS-5.5 - Updates disabled
C5.6-base CentOS-5.6 - Base disabled
C5.6-centosplus CentOS-5.6 - Plus disabled
C5.6-extras CentOS-5.6 - Extras disabled
C5.6-updates CentOS-5.6 - Updates disabled
base CentOS-5 - Base enabled: 2,587+118
c5-media CentOS-5 - Media disabled
centosplus CentOS-5 - Plus disabled
contrib CentOS-5 - Contrib disabled
debug CentOS-5 - Debuginfo disabled
extras CentOS-5 - Extras enabled: 251+31
updates CentOS-5 - Updates enabled: 403+73
repolist: 3,241