我用的是centos 7.2，我会安装Nginx-CT，它需要OpenSSL 1.0.2，当前版本如下：
[root@i001 ~]# rpm -qa|grep openssl
openssl-libs-1.0.1e-51.el7_2.4.x86_64
openssl-devel-1.0.1e-51.el7_2.4.x86_64
openssl-1.0.1e-51.el7_2.4.x86_64
我尝试在 fedora 库中下载 SRPM 包，
openssl-1.0.2d-2.fc23.src.rpm
重建它并安装，但有问题，
[root@i001 ~]# yum update openssl
Loaded plugins: axelget, langpacks
No metadata available for base
No metadata available for dockerrepo
No metadata available for elrepo
No metadata available for epel
No metadata available for extras
No metadata available for local
No metadata available for mariadb
No metadata available for nginx
No metadata available for remi-php70
No metadata available for remi-php70-test
No metadata available …