原因, Linux移除方法
http://people.debian.org.tw/~chihchun/2010/02/02/remove-cnnic-cert-on-linux/
opera移除
https://groups.google.com/group/operanalakuvara/browse_thread/thread/851866d07ccb9788?pli=1
Mac OSX keychain移除
http://jclin.blogspot.com/2010/02/mac-os-x-key-chain-cnnic-root.html
