apache添加對 tls 1.2的支持

查考：http://askubuntu.com/questions/643037/how-to-enable-tls-1-2-in-apache

使web服務器支持TLS1.2需要的服務器運行環境:

apache對應版本應>=2.2.23;

OpenSSL對應版本應>= 1.0.1

查看apache版本

[root@localhost 桌面]# httpd -v
Server version: Apache/2.4.6 (CentOS)
Server built:   Jul 18 2016 15:30:14

查看OpenSSL版本

[root@localhost 桌面]# openssl version
OpenSSL 1.0.1e-fips 11 Feb 2013

服務器環境配置好之後修改:/etc/httpd/conf.d/ssl.conf,添加對TLS1.2的支持,在80行左右添加:

SSLProtocol TLSv1.2

 #ssl.conf
 #SSL Protocol support:
 #List the enable protocol levels with which clients will be able to
 #connect.  Disable SSLv2 access by default:
 SSLProtocol all -SSLv2
 SSLProtocol TLSv1.2