http://www.ituring.com.cn/article/128536
rsyslog localhost 转发
http://bigsec.net/one/tool/rsyslog.html
https://wiki.archlinux.org/index.php/Rsyslog
http://blog.sematext.com/2013/07/01/recipe-rsyslog-elasticsearch-kibana/
http://skyou.blog.51cto.com/2915693/550736