Created CentOS上配置Shadowsocks (markdown)

CentOS上配置Shadowsocks.md

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+## 首先做好必要的安全措施
+
+配置fail2ban
+
+```
+sudo yum install fail2ban
+sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
+sudo service fail2ban restart
+```
+
+## 安装shadowsocks、supervisor
+
+前提是安装好[EPEL源][1]的情况下
+
+`sudo yum install python-pip m2crypto supervisor`
+
+`sudo pip install shadowsocks`
+
+## 添加shadowsocks配置文件
+
+`sudo nano /etc/shadowsocks.json`
+
+示例
+
+```
+{
+    "server":"0.0.0.0",
+    "server_port":7325,
+    "local_port":1080,
+    "password":"my password",
+    "timeout":600,
+    "method":"aes-256-cfb"
+}
+```
+
+## 配置supervisor [拓展阅读][2]
+
+`sudo nano /etc/supervisord.conf`
+
+添加
+
+```
+[program:shadowsocks]
+command=ssserver -c /etc/shadowsocks.json
+autorestart=true
+user=nobody
+```
+
+## 让supervisor自启动
+
+`sudo chkconfig --add supervisord`
+
+`sudo chkconfig supervisord on`
+
+## 配置防火墙
+
+`sudo nano /etc/sysconfig/iptables`
+
+加上
+
+`-A INPUT -m state --state NEW -m tcp -p tcp --dport 你的端口 -j ACCEPT`
+
+ [1]: http://www.ivancai.me/2014/10/24/centos-epel.html
+ [2]: http://www.ivancai.me/2014/10/24/centos-install-supervisor.html