Error:Unrecognized SSL message, plaintext connection??

Thanks TO:http://stackoverflow.com/questions/6532273/unrecognized-ssl-message-plaintext-connection-exception



How to look cents iptables?

查看可以访问的接口

https://www.digitalocean.com/community/tutorials/how-to-list-and-delete-iptables-firewall-rules

how to config  firewall iptanels:
http://ask.xmodulo.com/open-port-firewall-centos-rhel.html