With or without firewall, it's the same security issues. With a firewall,
you have to open some ports, and run a service (Tor) on a computer. If you
don't trust a computer program, but you want to run it for any reasons, it's
better to isolate it from your private network and from sensitive data.
Create a DMZ for Tor. Keep your firewall as closed as possible. Don't trust
traffic behind your firewall coming from the computer running Tor. And keep
in mind that you might be in black lists if you are running a proxy server.
This can block you from having access to some servers. Just by exemple,
google might ask you a gotcha for every query.

-----Original Message-----
From: listbounce (at) securityfocus (dot) com [email concealed] [mailto:listbounce (at) securityfocus (dot) com [email concealed]] On
Behalf Of im (at) anikin (dot) us [email concealed]
Sent: Wednesday, January 12, 2011 12:28 PM
To: focus-ms (at) securityfocus (dot) com [email concealed]
Subject: Tor

Hello Everyone,

What are the security implications of running a Tor relay on a machine
behind a firewall?

Is there a high probability of it being hacked somehow, and what does
one do to prevent that?

Thank you in advance for your time and advice.

mailto:im (at) anikin (dot) us [email concealed]

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