CentOS gpg import
CentOS 3 rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-3
CentOS 4 rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-4
以上
CentOS 3 rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-3
CentOS 4 rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-4
以上