CentOS yum [Errno 14] problem making ssl connection CentOs

vi /etc/resolv.conf

nameserver 1.2.4.8

nameserver 8.8.8.8

更换yum base repo

1）centos5.*的下载连接：
[root@bastion-IDC yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

2）centos6.*的下载连接：
[root@bastion-IDC yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

3）centos7.*的下载连接：
[root@bastion-IDC yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

vi /etc/yum/respos.d/epel.repo

将

enabled=1

改为

enabled=0

yum install ca-certificates

vi /etc/yum/respos.d/epel.repo

将

enabled=0

改为

enabled=1

此时yum已经恢复正常

参考：

https://www.cnblogs.com/kevingrace/p/6252659.html

https://blog.csdn.net/chao_1990/article/details/76959691