COSCUP VPS安全維護
可以iptable設定
waf(web application firewall)
SELinux
ssh(SSH) -> ssh(WEB)
log記錄到別台去
apache版本
https://www.slideshare.net/smalltown20110306/coscup-2017-infrastructure-as-code
http://blog.chengweichen.com/2017/08/coscup-2017-ansible-gitlab-cicd.html