由于SSLProtocol的原因，httpd失败了:centos的非法协议“TLSv1.1”。

I am trying to update TLS1 to TLS1.1 or higher but after doing below changes, Getting error "SSLProtocol: Illegal protocol 'TLSv1.1'" I am trying to update TLS1 to TLS1.1 or higher