[TriLUG] Firewall/Masquerading on RH 7.1

[Jon Carnes]

In that network your ipchains will work fine and will never be the
bottleneck.  Relax, enjoy, become obsolete...

Jon
----- Original Message -----
From: "Tom Bryan" <tbryan at python.net>
To: <trilug at trilug.org>
Sent: Saturday, September 01, 2001 11:23 PM
Subject: [TriLUG] Firewall/Masquerading on RH 7.1


> I'm running Red Hat 7.1 on my machines at home.  I only
> have one (functioning) modem, and I was planning to set
> up IP Masquerading.
>
> I have the 2.4.x kernel that was included with Red Hat 7.1.
> I configured a few simple firewall rules with Red Hat 7.1,
> but from what I can tell, that firewall is using ipchains.
> I read the Firewall HOWTO, so now I feel pretty comfortable
> with ipchains.  Looking at the newer IP Masquerade HOWTO,
> there's a lot of information about IPTABLES on 2.4.x kernels.
>
> So, I have one question...
> Given that I have a very simple configuration (3 machines, one
> phone modem), and I simply want to make sure that the machine
> on the modem denies most incoming traffic from the modem (ppp0)
> and that the other machines can share the modem with IP MASQ,
> should I read all about iptables and move my firewall rules
> (very simple at the moment) over to iptables?  Or should I stick
> with ipchains?  Basically, is there any compelling reason for
> me to go through the trouble of moving to iptables if I just
> want transparent SSH and web access to the public network from
> my home network without opening up my network to problems like
> the Ramen worm, which I got over my phone modem earlier this
> year :-p?
>
> Thanks,
> ----Tom
>
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