How do I connect to another computer to flow internet traffic through it?

Here is my situation, I am currently staying at a hospital while my son gets better. My wife and I have been here for weeks and are allowed to access the hospitals network. Its nice that they offer this since time moves very slowly while being in a hospital. The internet access is very restricted due to the fact that it is also the internet connection that employees use.

I want to be able to connect to my sister's computer to flow the traffic through it to get around the networks restrictive firewall. I am somewhat familiar with networking I have used proxies before/tor/ remote desktop etc.... I was interested in using SSH but am not sure if it will allow me to use her internet connection and not bother her control over her computer. The other concern I have is that she is in college and I do not want her to do anything that would cause a problem with her administration.


Any help will be greatly appreciated.


P.S i also run linux besides mac if there are any programs for that OS, my sister solely runs mac.