[root@server1 ~]# yum install php-gd php-devel
Loaded plugins: fastestmirror, protectbase
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: mirror.tzulo.com
* epel: mirror.cs.princeton.edu
* extras: centos.mirror.nac.net
* remi: fr.mirror.babylon.network
* remi-safe: fr.mirror.babylon.network
* updates: bay.uchicago.edu
168 packages excluded due to repository protections
No package php-gd available.
No package php-devel available.
Error: Nothing to do
[root@server1 ~]#