Popular blog tags

Intranet Penetration-Cloudflare  Argo Tunnel expose a locally running WebServer to the Public Internet(manually Using cli Method))

Published

Cloudflare  Argo Tunnel

Cloudflare Tunnel

 Cloudflare Warp vs  Cloudflare Tunnel

During the beta period, Argo Tunnel went under a different name: Warp

Cloudflare WARP != Cloudflare  Argo Tunnel

Cloudflare   Tunnel = Cloudflare  Argo Tunnel

 

通过Cloudflare  Argo Tunnel 访问本地网站原理

 

1.Cloudflare Tunnel creates a secure, outbound-only connection between your services and Cloudflare by deploying a lightweight connector in your environment.

Cloudflare  Argo Tunnel 工作方式类似于 frp,可以将本地服务发布到公网。只不过 frp 所需的服务器 IP 在 Argo Tunnel 中变成了 Cloudflare 提供的节点。Cloudflare  Argo Tunnel 连接本地web服务器端口和 Cloudflare 节点。

2.Cloudflare Tunnel exposes applications running on your local web server on any network with an internet connection without manually adding DNS records or configuring a firewall or router.

Cloudflare Tunnel可以將內部網路與 Cloudflare 之間打通。

3.Cloudflare  Argo Tunnel: A local  Private WebServer to the Public Internet

4.In our case, we want to reach internal resources without a VPN. Argo tunnel will running directly from an internal server and will forward the traffic to the targeted resources. 

cloudflare tunnel通过在源站和cloudflare边缘节点建立一条隧道,所有访问此服务的流量都要先到达cloudflare,再经过cloudflare和服务器源站之间建立的cloudflare tunnel到达源站。同理,源站对客户端的响应也要先通过cloudflare tunnel送到cloudflare的边缘节点,再由cloudflare边缘节点送给客户端。cloudflare tunnel提供了两点好处:(1)隐藏源站,所有的流量都要经过cloudflare边缘节点,在cloudflare配置访问控制规则,可以过滤掉非法请求;(2)可以借助cloudflare tunnel提供内网内的服务。如接入家用宽带的服务一般只能在同一个网络内才能访问,但是借助cloudflare tunnel可以让在其他网络中的设备通过互联网访问此服务。

下图是cloudflare tunnel的工作原理示意,建立cloudflare tunnel需要一个工具,这就是cloudflare提供的cloudflared。将cloudflared部署在源站服务器上,cloudflared主动和cloudflare边缘节点建立隧道,并将信息上报给cloudflare。隧道建立后,如果有合法的流量访问源站服务,则cloudflare会通过cloudflare tunnel将流量送到源站。

Cloudflared establishes outbound connections (tunnels) between your resources and the Cloudflare edge. Tunnels are persistent objects that route traffic to DNS records. Within the same tunnel, you can run as many cloudflared processes (connectors) as needed. These processes will establish connections to the Cloudflare edge and send traffic to the nearest Cloudflare data center.

 

Prerequisites

Cloudflare Account (free)

Change your domain nameservers to Cloudflare
Domain added to Cloudflare (using CF nameservers, etc)


Linux server with a web server already configured on it
No ports need to be port forwarded or allowed through your firewall

 

:~# cloudflared --version
cloudflared version 2022.5.1 (built 2022-05-11-1403 UTC)

 

How to use

 

Argo Tunnel is fast to install and run - it’s just three commands to expose a locally running web application:

$ install cloudflared 
//安装 Argo Tunnel Client
// binaries available for Linux, Mac and Windows https://developers.cloudflare.com/argo-tunnel/downloads/
$ cloudflared login
$ cloudflared --hostname example.com http://localhost:8080

You will be able to install cloudflared as a service, create and run tunnels, and get an overview of your active and inactive connectors.

Cloudflare   Tunnel On Ubuntu client

 

Part 1:download and install the Cloudflare Tunnel CLI tool

Install cloudflared and Authorize Cloudflare Tunnel

Step 1. Install cloudflared  on vps(aliyun)

Cloudflare Tunnel requires the installation of a lightweight server-side daemon, cloudflared, to connect your infrastructure to Cloudflare

To get started, download Argo Tunnel and follow our quickstart guide. If you’re curious how it works, you can also check out the source.

https://github.com/cloudflare/cloudflared/releases

download url:

https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/installation/#linux

登录你的 VPS

copy the command in the box below and paste it into a terminal window. Run the command.

wget https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64.deb
wget https://github.com/cloudflare/cloudflared/releases/download/2022.6.3/cloudflared-linux-arm64.deb  20220625 updated
dpkg -i cloudflared-linux-amd64.deb

output

:~# ls -l
total 28480
-rw-r--r-- 1 root root 15560854 May 11 22:05 cloudflared-linux-amd64.deb

:~# dpkg -i cloudflared-linux-amd64.deb
Selecting previously unselected package cloudflared.
(Reading database ... 119796 files and directories currently installed.)
Preparing to unpack cloudflared-linux-amd64.deb ...
Unpacking cloudflared (2022.5.1) ...
Setting up cloudflared (2022.5.1) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...

ohter:

[Cloudflare]: Please verify your email address 

https://dash.cloudflare.com/profile->Preferences->Verification email sent

Cloudflare update 

~# cloudflared update
2022-06-24T16:57:59Z ERR cloudflared was installed by a package manager. 
Please update using the same method.

download latest .deb from https://github.com/cloudflare/cloudflared/releases  and install it again
 

Step 2. ​​Login to Cloudflare-Argo Tunnel Client login

Argo Tunnel Client 需要使用者登录 Cloudflare 账号以进行授权,执行:

:~# cloudflared tunnel login

This command should give you the link. 

在无头模式的机器上,执行完毕后会输出一个链接.复制链接备用.

output

Please open the following URL and log in with your Cloudflare account:

https://dash.cloudflare.com/argotunnel?callback=https%3A%2F%2Flogin.cloudflareaccess.org%2FE63Xmtwi65theBI2lOxuw1p0Hfb-eKdvW9utmgo%3D

Leave cloudflared running to download the cert automatically.
2022-05-25T15:31:27Z INF Waiting for login...
2022-05-25T15:32:20Z INF Waiting for login...
2022-05-25T15:33:14Z INF Waiting for login...
2022-05-25T15:34:07Z INF Waiting for login...

复制控制台出现的网址登录你的CloudFlare账号。

Step 3: Authorize Cloudflare Tunnel

Open a browser on windows  on another pc .

copy link and Open link url on browser:https://dash.cloudflare.com/argotunnel?callback=https%3A%2F%2Flogin.cloudflareaccess.org%2FE63Xmtwi65theBI2lOxuw1p0Hfb-eKdvW9utmgo%3D

 

 logging in to your account

 select your hostname.

Cloudflare Tunnel wishes to serve as an origin on one of your zones.

Please select the zone you want to add a Tunnel to.

复制链接到浏览器内登陆账号,登录后选择使用的域名,完成验证,

output

Success
Cloudflared has installed a certificate allowing your origin to create a Tunnel on this zone.
You may now close this window and start your Cloudflare Tunnel!
Authorize Cloudflare Tunnel
Cloudflare Tunnel wishes to serve as an origin on one of your zones.

Please select the zone you want to add a Tunnel to.

Once the command has finished running, your vps will appear:

完成验证后,vps output

Please open the following URL and log in with your Cloudflare account:

https://dash.cloudflare.com/argotunnel?callback=https%3A%2F%2Flogin.cloudflareaccess.org%2FE63Xmtwi65theBI2lOxuw1p0Hfb-eKdvW9utmgo%3D

Leave cloudflared running to download the cert automatically.
2022-05-25T15:31:27Z INF Waiting for login...
2022-05-25T15:32:20Z INF Waiting for login...
2022-05-25T15:33:14Z INF Waiting for login...
2022-05-25T15:34:07Z INF Waiting for login...



You have successfully logged in.
If you wish to copy your credentials to a server, they have been saved to:
/root/.cloudflared/cert.pem

Once validated Cloudflare will return a cert.pem.

Part 2:  Cloudflare Tunnel Configuration

create, delete tunnels and manage DNS records directly with cloudflared.

 

Create a tunnel

We have two ways to do it lets take a look at these: 

way1:Cloudflared Dashboard 

From the cloudflare dashboard select the DNS tab and add a new CNAME record. The record will point to the target tunelUUID.cfargotunnel.com, which is a domain available only through Cloudflare. 

 
Click save to register.

way 2:CLI

As you saw previously we can manage our Cloudflare record once we have logged cloudflared with the certificate.

To add the record simply use the following command : 

cloudflared tunnel route dns <UUID or NAME> web.gitlab.domain.com

cloudflared tunnel create cloudflaredtunneliaspnetcorecn628
Tunnel credentials written to /root/.cloudflared/b46e5-4607-4262-91f8-c4aa7163.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 cloudflaredtunneliaspnetcorecn628 with id bd-4607-4262-91f8-c47163

 

cloudflared tunnel route dns cloudflaredtunneliaspnetcorecn628 www1.iaspnetcore.com

0000

Added CNAME www1.iaspnetcore.com which will route to this tunnel tunnelID=b46e596a7163

dash like as follow

b46e596daa7163.cfargotunnel.com

 

run

cloudflared tunnel run <UUID or Name>

cloudflared tunnel run cloudflaredtunneliaspnetcorecn628

 

other

cloudflared tunnel run cloudflaredtunneliaspnetcorecn628
2022-05-25T16:11:44Z INF Starting tunnel tunnelID=b46e598-c41a7163
2022-05-25T16:11:44Z INF Cannot determine default configuration path. No file [config.yml config.yaml] in [~/.cloudflared ~/.cloudflare-warp ~/cloudflare-warp /etc/cloudflared /usr/local/etc/cloudflared]
2022-05-25T16:11:44Z INF Version 2022.5.1

 

 

vim /root/.cloudflared/config.yml

url: http://localhost:80
tunnel: <Tunnel-UUID>
credentials-file: /home/{username}/.cloudflared/<Tunnel-UUID>.json

 

url: http://localhost:80
tunnel: <Tunnel-UUID>
credentials-file: /home/{username}/.cloudflared/<Tunnel-UUID>.json
Validating your configuration
:~# cloudflared tunnel ingress validate
Validating rules from /root/.cloudflared/config.yaml
OK

Testing your configuration

cloudflared tunnel ingress rule https://foo.example.com
Using rules from /root/.cloudflared/config.yaml
Matched rule #2
	service: http_status:404
:~# cloudflared tunnel ingress rule https://www1.iaspnetcore.com
Using rules from /root/.cloudflared/config.yaml
Matched rule #1
	hostname: www1.iaspnetcore.com
	service: http://localhost:80

see:https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/configuration/local-management/ingress/

 

 

 

 

Useful links

https://github.com/cloudflare/cloudflared

https://blog.csdn.net/alex_yangchuansheng/article/details/123564350

Cloudflare  Tunnel On Windows 10

 

official website doc for Cloudflare  Tunnel 

https://developers.cloudflare.com/cloudflare-one/connections/connect-apps

 

How to create cloudflare tunnel on windows 10  Step by step(GUI cn)

https://www.cnblogs.com/triangleowl/p/16293619.html