این دستور رو زدم
rpm -Uvh http://rpms.famillecollet.com/enterp...-release-6.rpm
روند زیر طی شد ولی باز خطا میده

[root@server html]# rpm -Uvh http://rpms.famillecollet.com/enterp...-release-6.rpm
Retrieving http://rpms.famillecollet.com/enterp...-release-6.rpm
warning: /var/tmp/rpm-tmp.DNNagp: Header V3 DSA/SHA1 Signature, key ID 00f97f56: NOKEY
Preparing... ########################################### [100%]
package remi-release-6.6-2.el6.remi.noarch is already installed
[root@server html]#