VSCODE remote ssh debugging linux+cpolar intranet penetration

1. Configuration and use of cpolar

1. Enter cpolar official website https://i.cpolar.com/m/4kqU

2. Click Free to use to register an account

3. Install cpolar on linux

Domestic installation

curl -L https://www.cpolar.com/static/downloads/install-release-cpolar.sh | sudo bash

Or cpolar short link installation method: (for foreign use)

curl -sL https://git.io/cpolar | sudo bash

Check the version number, if it is displayed normally, the installation is successful

cpolar version

token authentication

Enter the official website https://www.cpolar.com/, log in to your account, click the verification on the left to view your authentication token, and then paste the token in the command line, as shown in the figure below

cpolar authtoken xxxxxxx

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Simple Penetration Test

cpolar http 8080

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If the corresponding public network address is normally generated, press ctrl+c to exit
– add services to the system

sudo systemctl enable cpolar

Start the cpolar service

sudo systemctl start cpolar

Check the status of the service, if it is displayed as shown in the figure below, activeit is in the started state

sudo systemctl status cpolar

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After the installation and configuration of cpolar is complete, visit the local port 9200 on the browser, and use the cpolar email account to log in to the cpolar web UI management interface

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After cpolar is successfully installed, 2 sample tunnels will be installed by default, which can be edited or deleted by yourself:

ssh tunnel: point to local port 22, TCP protocol
website tunnel: point to local port 8080, HTTP protocol

You can see the public network address of ssh in the online tunnel list. Since it is a free plan, the address is updated every 24 hours. Be careful not to copy *tcp://* when using remote

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Of course, you can also log in to the cpolar official website https://www.cpolar.com/ to view the status and URL

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Two, VSCODE for ssh remote connection

1. Install vscode

2. Search for "remote" in the extension store and install Remote-SSH

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3. Public network SSH remote connection to Ubuntu

new remote

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ssh -p XXXXX [email protected] such as:

ssh -p 23501 [email protected]
Among them, X is the port number generated by cpolar, and the user name needs to be replaced with the Ubuntu host user name). It should be noted that before the numerical port number, you need to add the "(space)-p (space)" parameter, otherwise the tunnel cannot be connected; secondly, after "ssh -p XXXXX username@", you must enter the copy generated by the client tcp address

Then choose a location to save the config file

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