通过 CF Warp 为 IPv4/6 Only VPS 添加 IPv6/4 支持

### Debian 安装
```bash
# Install lsb
apt update && apt install lsb-release gpg curl wget

# Add cloudflare gpg key
curl -fsSL https://pkg.cloudflareclient.com/pubkey.gpg | gpg --yes --dearmor --output /usr/share/keyrings/cloudflare-warp-archive-keyring.gpg

# Add this repo to your apt repositories
echo "deb [arch=amd64 signed-by=/usr/share/keyrings/cloudflare-warp-archive-keyring.gpg] https://pkg.cloudflareclient.com/ $(lsb_release -cs) main" | tee /etc/apt/sources.list.d/cloudflare-client.list

# Install
apt update && apt install cloudflare-warp
```
### Warp-cli 使用
#### 注册warp免费账号
```bash
warp-cli registration new
```
输入 y 回车同意 TOS，出现 success 即成功
#### 添加排除路由
```bash
# ipv6-only VPS
warp-cli add-excluded-route ::0/0

# ipv4-only VPS
warp-cli add-excluded-route 0.0.0.0/0
```
#### 连接 warp
```bash
warp-cli set-mode warp
warp-cli connect
```
#### 测试连接
```bash
# ipv6-only VPS
curl -4 ip.sb
# 有 ipv4 代表启动成功

# ipv4-only VPS
curl -6 ip.sb
# 有 ipv6 代表启动成功
```
#### 设置自动连接
```bash
warp-cli enable-always-on
```