SSL certificate

记点笔记
什么是SSL? https协议如运作：
http://www.tldp.org/HOWTO/SSL-Certificates-HOWTO/x64.html

检查你的server上的SSL certificate是否有效：
http://www.digicert.com/help/

创立一个self-signed ssl certificate:
http://www.akadia.com/services/ssh_test_certificate.html