142 lines
3.4 KiB
Markdown
142 lines
3.4 KiB
Markdown
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---
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title: 使用 NAT VPS 作为 SD-LAN 中继
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date: '2022-10-13'
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tags: ['ZeroTier', 'TailScale', ‘SD-WAN’, 'NAT', 'VPS', 'FRP', 'Self-Hosted']
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draft: false
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summary: ZeroTier 和 TailScale 是我目前正在同时使用的 SD-LAN 组网工具。这次购入了一台 NAT VPS，准备用它中继 ZeroTier 和 TailScale。
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---
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## 诉苦
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由于工作需要，我已经好几个月使用 SD-WAN 在公司和宿舍组建了 SD-WAN，可是国内网络环境实在是不友好，公司网络质量也差，我忍受了很久的随机掉线的问题，近两个月我改用手机热点避免了这个问题，但是只能在开发后端时使用，如果开发前端或者是对生产环境进行部署与验证时，访问线上环境需要几百兆流量，我吃不消哇，频繁切换 Wi-Fi 接入点也不是个令人愉快的事。但天无绝人之路，我兜兜转转购入了一台香港的 NAT VPS，规划用于中继 SD-LAN。
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## 方案
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## 步骤
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### 重装系统
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// TODO:
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## ZeroTier 中继
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### VPS 上安装步骤
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#### 安装 ZeroTier 客户端
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```bash
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yay -S zerotier-one
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```
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#### 启动服务
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```bash
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sudo systemctl enable zerotier-one
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sudo systemctl start zerotier-one
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```
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#### 加入网络
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打开官方 planet 面板：[ZeroTier Central](https://my.zerotier.com/)，复制你的网络 ID，然后：
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```bash
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sudo zerotier-cli join <your_network_id>
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```
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回到面板，授权刚刚加入的节点。
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#### 转换为 Moon
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生成 moon 配置
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```bash
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sudo zerotier-idtool initmoon identity.public | sudo tee -a moon.json
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```
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输出示例：
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````json
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{
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"id": "9axxxxxx12",
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"objtype": "world",
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"roots": [
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{
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"identity": "9axxxxxx12:0:258xxxxxx38b34a2fa88b46d290137a6ecb3a185dacdaee957c30e33f1977ca7e",
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"stableEndpoints": []
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}
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],
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"signingKey": "df18369fxxxxxx70036a356c",
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"signingKey_SECRET": "b1524155faa6f779b8xxxxxxf811f711fed",
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"updatesMustBeSignedBy": "df18369f3b54xxxxxx036a356c",
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"worldType": "moon"
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}
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向 `"stableEndpoints": []` 中添加 `"<server_ip>/<server_nat_port>"`，其中 `server_ip` 是你的公网地址，`server_nat_port` 是 NAT 后的外网端口。示例如下：
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```json
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{
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//...
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"roots": [
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{
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"identity": "9axxxxxx12:0:258xxxxxx38b34a2fa88b46d290137a6ecb3a185dacdaee957c30e33f1977ca7e",
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"stableEndpoints": ["1.2.3.4/19993"]
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}
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],
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//...
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}
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````
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生成 `.moon` 文件：
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```bash
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sudo zerotier-idtool genmoon moon.json
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```
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执行完成后，可以在当前目录中看到 `.moon` 文件：
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```bash
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ls -l | grep *.moon
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```
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将生成的 `.moon` 文件移动到 `./moons.d` 目录中：
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```bash
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sudo mkdir moons.d
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sudo mv 000000xxxxxxxxxx.moon moons.d
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```
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#### 重启 ZeroTier 服务
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```bash
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sudo systemctl restart zerotier-one
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```
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### 使用 ZeroTier 中继
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前面生成的 "000000xxxxxxxx.moon" 文件，除去后缀 `.moon` 外就是 Moon ID，前面的零没啥用，把后面的内容放到下面的命令中，两个参数都是 Moon ID。
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```bash
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sudo zerotier-cli orbit xxxxxxxxxx xxxxxxxxxx
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```
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### 问题排查
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#### 无法加入网络
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```bash
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sudo zerotier-cli join xxxxxxxxxxxx
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# outputs:
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# zerotier-cli: missing port and zerotier-one.port not found in /var/lib/zerotier-one
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```
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原因：没有[启动服务](#启动服务)。
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#### 无法初始化 moon
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```bash
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sudo zerotier-idtool initmoon identity.public | sudo tee -a moon.json
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# outputs:
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# identity.public is not a valid identity
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```
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原因：没有[启动过服务](#启动服务)。第一次启动后 ZeroTier 会创建 `identity.public` 文件。
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