guide me to connect using reverse ssh tunnel - simple project

Hello my name is Roger, i'm a Full Stack Developer in the USA. I've been utilizing techniques like a reverse Shell for years for data proxy and shell usage. Thanks

Dear Customer: My name is Herbert and I am in the IT field since 2000, most of my time I have been working as a FullStack Developer using different technologies; since 2020 I'm very passionate about infosecurity, I'm currently studying very hard to obtain my OSCP certification, on HackTheBox I have pawned 58 different machines, also, I have been working on PortSwigger’s Labs, so far, I am almost at 50% of labs solved. To privilege escalation on a system, to get a reverse shell is the best foothold, so, after reading the project's description it seems your trying to approach a server in this direction, so I would like to have more details like: 1.) are you using a server from your own lab? 2.) would you mind giving me some legal details about the task you are trying to accomplish? 3. any other details about your project will be extremely helpful to understand the technical and legal scenario. So, let's talk about this, I will be more than happy to jump into this project if this one is related to ethical hacking; any comments please do not hesitate to contact me. All the best