We can't find the internet
Attempting to reconnect
## 为 macOS 配置 VPN
### 配置 VPN 服务器
搭建 vpn 服务
从系统仓库安装`ipsec` 安装`xl2tpd`
在服务器上启动服务
配置好服务账户
```
systemctl restart ipsec
systemctl restart xl2tpd
```
### 配置 VPN Client
从`Mac App Store`安装`Apple Configurator 2`
创建 VPN 描述文件
选择`l2tp`协议配置*服务器地址、用户名、密码和共享密钥*
把描述文件安装到`macOS`的系统配置，`iOS`通过`airDrop`安装
安装完成即可连接 vpn
### 配置 macOS 在 VPN 连接时的路由表
使用`[static-routes][https://github.com/gsmlg/static-routes]`的配置
路由表数据时使用 maxmine 公开的 geoip 数据库来进行配置
在`/etc/ppp/`目录配置`ip-up`,`ip-down`对应在 VPN 启动和停止时执行对应脚本
脚本中可以使用变量说明
```
$1 interface etc: ppp0
$2 none?
$3 ? 0
$4 client ip
$5 remote ip
$6 local gateway
```
### 命令行中控制 VPN
```
VPN connections
Usage: scutil --nc [command]
list
List available network connection services in the current set
status <service>
Indicate whether a given service is connected, as well as extended status information for the service
show <service>
Display configuration information for a given service
statistics <service>
Provide statistics on bytes, packets, and errors for a given service
select <service>
Make the given service active in the current set. This allows it to be started
start <service> [--user user] [--password password] [--secret secret]
Start a given service. Can take optional arguments for user, password, and secret
stop <service>
Stop a given service
suspend <service>
Suspend a given service (PPP, Modem on Hold)
resume <service>
Resume a given service (PPP, Modem on Hold)
ondemand [-W] [hostname]
ondemand -- --refresh
Display VPN on-demand information
trigger <hostname> [background] [port]
Trigger VPN on-demand with specified hostname, and optional port and background flag
enablevpn <service or vpn type> [path]
Enables the given VPN application type. Takes either a service or VPN type. Pass a path to set ApplicationURL
disablevpn <service or vpn type>
Disables the given VPN application type. Takes either a service or VPN type
help
Display available commands for --nc
```