proxies and firewalls
Barbish3 at adelphia.net
Mon Feb 2 08:52:17 PST 2004
Thanks for your reply, But I must be thick headed this morning,
because what you say below makes no sense to me.
I checked out the 2 referenced descriptions and they say
nothing about doing nat.
I have Lan with private ip address that send packets to
public internet. How does an proxy server solve the private ip
address versus my public ip address problem?
From: owner-freebsd-questions at freebsd.org
[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of
jan.muenther at nruns.com
Sent: Monday, February 02, 2004 11:28 AM
Cc: Jorn Argelo; questions at freebsd.org
Subject: Re: proxies and firewalls
> Are you saying you know of an proxy server that does the nat
Actually, the point of having proxies is *not* having
to route. Your proxy machine should not be able to forward packets.
Roughly, there a two different sub-groups: Circuit layer and
layer proxies, names should be self explaining.
Example for an app layer gateway:
Info: A toolkit used for building firewalls based on proxy
Example for a circuit level proxy:
Info: A Unix SOCKS 4 and 5 proxy server
Socks5 is already app layer, too, IIRC.
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