MCYSEKA-Maritime Cyber Security Knowledge Archive

Hello!

Our school implemented an SSL inspection tool called ContentKeeper. It’s super annoying. Im currently running ubuntu on a USB stick at school as the laptops there don’t even allow us to install python (which I have a class for)

Normally all requests go through as expected when using a laptop without my own OS, but whenever I try to use mine I get a MITM warning that I can’t ignore. Absolutely no connections are making it through to shadowsocks or any sort of proxy server on both my home PC or a hosted server.

Also I cannot make any connection with SSH from the school network

Here are some things I have tried:

Shadowsocks: Nope no connection at all on ports 80, 443 or default?? Theres a small chance that i messed up something but im also not even able to ssh into my pc or my server from the school internet on my ubuntu stick

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Remoting into my home PC is an option but the basic things I have tried (chrome remote desktop, parsec, steam remote play) all do not have internet access.

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Tor: Nope

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OpenVPN ports 80, 443: Nope 🙁

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DNS tunnel (I cant find any decent tutorial and I keep seeing everywhere that it slows connection; I need a fast connection ideally for remote desktop with low latency): Havent tried

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I do have connection from my IOS and Android device when I connect to a free VPN (XVPN) however installing it on the laptop makes it not work for some reason (Have tried many VPNS)

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Sorry for the massive block of text. Also please go easy on me because I am slightly newer to networking! 🙂

I will update the post with things I have tried and will respond to every comment with advice.

Thank you in advance!