Security Basics mailing list archives

Re: Firewall on server itself


From: "Michael P" <michael () techiesplace com>
Date: Wed, 25 Jun 2003 11:57:26 -0500 (CDT)

I am trying to set up a secure web server which will already be
protected by a dedicated harware firewall.  The hardware firewall will
be configured to protect the web server as well other computers on the
network.  The web server will be running Red Hat 9.0.  Is there any
reason to install and configure firewall software such as IPTables on
the web server itself? Are there any advantaqes or disadvantages to
having two firewalls set up this way?


I can think of a couple of advantages:

1) Do you trust your users?  What if someone BEHIND the hardware firewall
decides to get cute and try to mess with your web server?

2) What if your hardware firewall has an exploitable condition allowing
people to bypass it?

Defense in depth isn't a bad thing.

Michael



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