this post was submitted on 19 Oct 2023
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Bypass Palo Alto company firewall (alien.top)
submitted 1 year ago by martijn79@alien.top to c/main@selfhosted.forum
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Hello,

My company is using a palo alto firewall which replaces the SSL certificate for every HTTPS site by a company generated one. I used to bypass internet filtering by creating a SSH tunnel with Putty (I am local admin and can run Putty on my laptop) and run it on port 443. Then add a socks proxy in my browser setting and I was done. No more SSL filtering and I could access any website.

But now the firewall is blocking this as well. SSH to port 443 is not working anymore.

I tried this: https://hacktr.org/blog/2020/01/01/ssh-tunneling-over-https/ but it didn't work either.

I also tried this: https://mariobrandt.de/archives/technik/ssh-tunnel-bypassing-transparent-proxy-using-apache-170/

But no go as well.

This has to be possible some way, by proxying apache to SSH using a letsencrypt cert. I tried to add a LE cert but the problem is when apache proxies to SSH it changes to IP ad the firewall blocks that step.

Any idea how to solve this?

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[–] AdrianTeri@alien.top 2 points 1 year ago

Stop trying to access non-related work things on corporate networks! Use you own travelling router/mobile tethering etc

If you're abusing this policy also now anything you do/create on "their" computers is/can be visible to them and in the case of creation they can claim IP!