## 普通用户

```bash
nano ~/.bashrc
```

```
# Proxy Configuration
export HTTP_PROXY="http://192.168.31.9:7890"
export HTTPS_PROXY="http://192.168.31.9:7890"
export http_proxy="http://192.168.31.9:7890"
export https_proxy="http://192.168.31.9:7890"

# 可选：设置不走代理的地址 (本地地址和内部域名)
export NO_PROXY="localhost,127.0.0.1,::1,192.168.*,10.*"
export no_proxy="localhost,127.0.0.1,::1,192.168.*,10.*"
```

保存并退出（`Ctrl + O` `Enter` `Ctrl + X`）

```bash
source ~/.bashrc
```

## 对所有用户生效

```bash
sudo nano /etc/environment
```

```
HTTP_PROXY="http://192.168.31.9:7890"
HTTPS_PROXY="http://192.168.31.9:7890"
http_proxy="http://192.168.31.9:7890"
https_proxy="http://192.168.31.9:7890"
NO_PROXY="localhost,127.0.0.1,::1"
no_proxy="localhost,127.0.0.1,::1"
```

保存并退出（`Ctrl + O` `Enter` `Ctrl + X`）

```bash
sudo reboot
```

重启系统才能生效