Security Basics: Re: Cisco PIX fixup protocol command

["kawaii ryuko" <trunks () stackers org>]

From: "S.Rohit" <s.rohit () usa net>
Sent: Wednesday, February 11, 2004 05:52


> hi everyone....
>
>    might sound like a very stupid question to ask, but i am looking for
info
> on wat is the use of fixup protocol commands on the Cisco PIX device. wat
is
> the exact usage and significance of this commands? and wat are the
security
> implications of this command? i know that some fixup's like say fixup
protocol
> smtp are good cos of the way they restrict the SMTP command set but how
about
> the general syntax [no] fixup protocol [service] [port]? what is this used
for
> and wat are the security implications for this?
Good firewall policy means you know /exactly/ what ports are open and what
you are allowing through. Unless you are using a specific fixup service, it
is best to turn them off. Personally, I like to turn off all fixup protocols
and then open up ports as need be.

The fixup series of commands are basically shortcuts that let you open up a
service without having to go through all the individual ports (if I
understand it correctly.)

> rohit
Ever lovable and always scrappy,
kawaii


---------------------------------------------------------------------------
Free trial: Astaro Security Linux -- firewall with Spam/Virus Protection

Protect your network with the comprehensive security solution that
integrates six applications for ease of use and lower TCO.

Firewall - Virus protection - Spam protection - URL blocking - VPN
- Wireless security.

Download 30-day evaluation at:
http://www.astaro.com/php/contact/securityfocus.php
----------------------------------------------------------------------------