The protocols are what are likely blocked, or at least their specific ports which they operate on. (L2TP, PPTP, etc)

There are a few ways to get around the firewalls, depending on what methods they are using for security. Common evasions could be using a platform such as TeamViewer to remotely connect to a computer at home or using web engines where the web content is rendered at another website (check out https://www.filterbypass.me/).


Squid proxy wouldn't really be applicable here as it is designed for caching and filtering, and an ssh tunnel may work but would only provide ssh-grade access. SSH is generally used to provide bash access, yet he'd need something to at the very least cache web content then forward it to his client. Am I misunderstanding the purpose of either of these?


Honestly, I'd suggest just using your data and tether it to your computer via a hotspot or similar. If it's necessary for something at school, you can always contact the network admin or publish a ticket to have the website unblocked, or if it's not appropriate to request, it's likely not appropriate to evade security protocols just to reach. Just use a hotspot / your own data, don't hijack your school's.