本文最后更新于 2022-09-30 ，文中内容可能已过时。
居家办公，需要把公司电脑穿出来让家里电脑链接。
需要cloudflared这个工具，在下面链接下载对应的版本。
https://github.com/cloudflare/cloudflared/releases
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ubuntu@ubuntu:~$ cloudflared login
Please open the following URL and log in with your Cloudflare account:
https://dash.cloudflare.com/argotunnel?callback= https%3A%2F%2Flogin.cloudflareaccess.org%2FRl3hix8lZBOXDNuSgnGsRNsKoM98SsecBz_S7dSxtyg%3D
Leave cloudflared running to download the cert automatically.
You have successfully logged in.
If you wish to copy your credentials to a server, they have been saved to:
/home/ubuntu/.cloudflared/cert.pem
打开它提示的url用你的cloudflare账号登录，选择域名后会生成一个cert.pem鉴权文件。
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ubuntu@ubuntu:~$ cloudflared tunnel create test
Tunnel credentials written to /home/ubuntu/.cloudflared/9a9001bf-0015-4047-b196-9568ccff947a.json. cloudflared chose this file based on where your origin certificate was found. Keep this file secret. To revoke these credentials, delete the tunnel.
Created tunnel test with id 9a9001bf-0015-4047-b196-9568ccff947a
ubuntu@ubuntu:~$ cloudflared tunnel route dns 9a9001bf-0015-4047-b196-9568ccff947a test.y4er.com
2022-09-27T09:49:04Z INF Added CNAME test.y4er.com which will route to this tunnel tunnelID = 9a9001bf-0015-4047-b196-9568ccff947a
ubuntu@ubuntu:~$
这会创建一个test的tunnel，tunnel的uuid是9a9001bf-0015-4047-b196-9568ccff947a，绑定在test.y4er.com域名上。这个时候看你的dns记录会发现多了这条记录。
然后可以开始穿透了。
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cloudflared tunnel --name test --url rdp://127.0.0.1
cloudflared tunnel --name test --url http://127.0.0.1:8080
cloudflared tunnel --name test --url tcp://127.0.0.1:3306
我这里是转发127.0.0.1的3389端口
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ubuntu@ubuntu:~$ cloudflared tunnel --name test --url rdp://127.0.0.1
2022-09-27T09:52:52Z INF Reusing existing tunnel with this name tunnelID=9a9001bf-0015-4047-b196-9568ccff947a
2022-09-27T09:52:52Z INF Starting tunnel tunnelID=9a9001bf-0015-4047-b196-9568ccff947a
2022-09-27T09:52:52Z INF Cannot determine default configuration path. No file [config.yml config.yaml] in [~/.cloudflared ~/.cloudflare-warp ~/cloudflare-warp /etc/cloudflared /usr/local/etc/cloudflared]
2022-09-27T09:52:52Z INF Version 2022.9.1
2022-09-27T09:52:52Z INF GOOS: linux, GOVersion: go1.18.6, GoArch: amd64
2022-09-27T09:52:52Z INF Settings: map[n:test name:test url:rdp://127.0.0.1]
2022-09-27T09:52:52Z INF cloudflared will not automatically update when run from the shell. To enable auto-updates, run cloudflared as a service: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/run-tunnel/as-a-service/
2022-09-27T09:52:52Z INF Generated Connector ID: a1da23e2-cdfc-44db-a0b0-2428e8c4a85a
2022-09-27T09:52:52Z INF Initial protocol quic
2022-09-27T09:52:52Z INF Starting metrics server on 127.0.0.1:45235/metrics
2022/09/27 09:52:52 failed to sufficiently increase receive buffer size (was: 208 kiB, wanted: 2048 kiB, got: 416 kiB). See https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Buffer-Size for details.
2022-09-27T09:52:53Z INF Connection de1df8d6-3983-4944-8a70-6c62ed96404b registered connIndex=0 ip=198.41.200.33 location=SJC
2022-09-27T09:52:55Z INF Connection 815b9bee-5b7b-4abd-badc-3dc397143278 registered connIndex=2 ip=198.41.200.73 location=SJC
2022-09-27T09:52:55Z INF Connection 842a5dc0-698c-454c-8a92-7bb0c9560b0e registered connIndex=3 ip=198.41.192.107 location=LAX
2022-09-27T09:52:58Z WRN Failed to create new quic connection error="failed to dial to edge with quic: timeout: no recent network activity" connIndex=1 ip=198.41.192.227
2022-09-27T09:52:58Z INF Retrying connection in up to 2s seconds connIndex=1 ip=198.41.192.227
2022-09-27T09:52:58Z WRN Connection terminated error="failed to dial to edge with quic: timeout: no recent network activity" connIndex=1
报错是因为默认用quic协议传输数据，国内不支持，他会自动回退协议到http2上，所以报错不用管。
啥也不用配置，直接运行
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cloudflared access rdp --hostname test.y4er.com --listener 127.0.0.1:3389
然后公司电脑的3389就被映射到了本机的3389上。
直接mstsc链接就行了。
比向日葵好用一万倍。
懒得起一个cmd专门跑这个玩意，所以做成supervisor服务配一个自启动。
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[program:cloudflared]
command=cloudflared tunnel --name test --url rdp://127.0.0.1
dircetory=/usr/local/bin/ #进程目录
autostart=true #在supervisord启动的时候是否自动启动
autorestart=true #程序退出后是否自动重启
#日志输出
stderr_logfile=/tmp/client_stderr.log
stdout_logfile=/tmp/client_stdout.log
user=ubuntu
注意user为你当前用户，不然cloudflared拿不到鉴权文件。
写完了才发现直接可以命令安装服务
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cloudflared service install
公司电脑配置
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cloudflared tunnel --name test --bastion
家里电脑配置
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cloudflared access tcp --hostname test.y4er.com --listener 127.0.0.1:3389 --destination 127.0.0.1:3389
destination可以指定其他端口或其他ip。
client链接的时候挂个代理就不会特别卡了。我用着比向日葵舒服，至少不会断，tom用的时候特别卡，可能是因为代理或者家庭宽带的线路问题，因人而异吧。
文笔垃圾，措辞轻浮，内容浅显，操作生疏。不足之处欢迎大师傅们指点和纠正，感激不尽。
