[tor-talk] Ports required for Tor and hidden services

[Andreas Krey]

On Fri, 24 Jan 2020 01:12:10 +0000, Forst wrote:
> Please don't make assumptions. If outgoing traffic is restricted, which 
> ports are required for Tor to work as in outgoing traffic default action 
> is drop?

Technically, all of them. A tor client connects to the OR-Ports of tor
relays, and they can be on any port. Many are on 443 and 9001, though.

But you can configure your node to only use specific ports outgoing,
see FirewallPorts and  FascistFirewall in
https://2019.www.torproject.org/docs/tor-manual.html.en
So, even only of 443, 9001, and perhaps 80 is workable.

- Andreas

-- 
"Totally trivial. Famous last words."
From: Linus Torvalds <torvalds@*.org>
Date: Fri, 22 Jan 2010 07:29:21 -0800