CentOS 6安装Shadowsocks-libev以及相关配置

参考Shadowsocks-libev在Github上的说明：
download yum repo on Fedora Copr and put it inside /etc/yum.repos.d/.


在Fedora Copr上下载软件仓库配置文件：

wget https://copr.fedorainfracloud.org/coprs/librehat/shadowsocks/repo/epel-6/librehat-shadowsocks-epel-6.repo

将配置文件放置到/etc/yum.repos.d/：
mv librehat-shadowsocks-epel-6.repo /etc/yum.repos.d/


然后通过yum安装shadowsocks-libev：
yum update
yum install shadowsocks-libev


如果想把shadowsocks-libev作为服务运行，拷贝启动脚本shadowsocks-libev到/etc/init.d/目录下后，启动：
wget https://cokebar.info/wp-content/uploads/2014/11/shadowsocks-libev
mv shadowsocks-libev /etc/init.d/


然后可以通过以下命令在启动、停止和重启shadowsocks-libev服务：
/etc/init.d/shadowsocks-libev start
/etc/init.d/shadowsocks-libev stop
/etc/init.d/shadowsocks-libev restart


对于shadowsocks-libev有两点需要注意：
1. shadowsocks-libev以服务运行时无法输出日志：
https://github.com/shadowsocks/shadowsocks-libev/issues/174
2. shadowsock-libev不支持python版、go版的多端口配置：
https://github.com/shadowsocks/shadowsocks-libev/issues/5