大侠给看看rhn_register的提示

cnlong

在蓝色的屏幕下出现:
There was an SSL error: [('SSL routines', 'SSL3_GET_SERVER_CERTIFICATE', 'certificate verify failed')]
A common cause of this error is the system time being incorrect. Verify that the time on this system is correct.
这是什么意思?
在此之前我运行了一下下面的命令我是按一开始运行rhn_register时的提示打的,好象是
下面这个命令)
rpm --import /usr/share/rhn/*****/RHN-GPG-KEY