# CentOS7 安装配置 SS
## 安装依赖
### 安装 Git
检查是否已安装 Git：
```
git --version
```
如未安装，则安装：
```
yum -y install git
```
> **Tips:**
>
> 已安装，则更新：
>
> ```
> yum update git
> ```
检查 Git 版本信息：
```
git --version
```
> git version 1.7.1
### 安装 python 工具包和 pip
```
yum -y install python-setuptools && easy_install pip
```
## 安装 SS
使用 pip 从 github 安装最新版 SS：
```
pip install git+https://github.com/shadowsocks/shadowsocks.git@master
```
检查安装的 SS 版本：
```
ssserver --version
```
> Shadowsocks 3.0.0
## 配置 SS
### 配置文件
创建配置文件：
```
vim /etc/shadowsocks.json
```
插入配置：
```javascript
{
"server": "0.0.0.0",
"server_port": 10199,
"local_address": "127.0.0.1",
"local_port": 1080,
"password": "pwd",
"timeout": 600,
"method": "rc4-md5"
}
```
> **Tips:**
>
> `server_port` 为 SS 端口号。
>
> `password` 为 SS 密码。
>
> `method` 为加密方式，推荐 `rc4-md5` 速度快，如需高密度则推荐 `aes-256-cfb` 。
### 启动 SS
后台启动 SS 服务：
```
ssserver -c /etc/shadowsocks.json -d start
```
设置 SS 开机启动：
```
echo "ssserver -c /etc/shadowsocks.json -d start" >> /etc/rc.local
```
## FirewallD 配置
创建新的 FirewallD 服务配置文件：
```
vim /etc/firewalld/services/ss.xml
```
插入配置：
```markup
SS
SS
```
> **Tips:** `port` 和上面 SS 配置文件中的 `server_port` 保持一致。
保存退出，在默认区域添加 SS 服务：
```
firewall-cmd --permanent --add-service=ss
```
重载 FirewallD 规则：
```
firewall-cmd --reload
```
## 管理 SS
启动运行 SS 服务：
```
ssserver -c /etc/shadowsocks.json -d start
```
停止 SS 服务：
```
ssserver -c /etc/shadowsocks.json -d stop
```
重启 SS 服务：
```
ssserver -c /etc/shadowsocks.json -d restart
```
查看日志：
```
less /var/log/shadowsocks.log
```
查看 SS 进程：
```
ps aux | grep ssserver | grep -v "grep"
```
## 客户端
[SS for Android](https://github.com/shadowsocks/shadowsocks-android)
[SS for MacOS](https://github.com/shadowsocks/ShadowsocksX-NG)
[SS for Windows](https://github.com/shadowsocks/shadowsocks-windows)
## 参考文献
* [SS GitHub](https://github.com/shadowsocks/shadowsocks/tree/master)
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