在执行 yum 命令时，会提示

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Could not get metalink https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=x86_64 error was
14: problem making ssl connection

解决方法是将: /etc/yum.repos.d/epel.repo 文件中的[epel] 节点的mirrorlist注释掉，baseurl去除注释,enable的值为1

命令:

使用vim 编辑器打开/etc/yum.repos.d/epel.repo文件

vim /etc/yum.repos.d/epel.repo

将

[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
# baseurl 前去除#号
baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
# mirrorlist 前加#好
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
# enable值改为1
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

修改完epel.repo 文件之后，然后再试 yum 命令
如:

yum list php

References

1. linux下yum错误：Errno 14 problem making ssl connection Trying other mirror.