<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2655.35">
<TITLE>RE: Allow multiple filename extensions?</TITLE>
</HEAD>
<BODY>
<P><FONT SIZE=2>Comment out.</FONT>
</P>
<P><FONT SIZE=2>If you change it to allow, it will allow anything with a double extension.</FONT>
</P>
<P><FONT SIZE=2>I added some extensions that should be allowed whether doubled or not above this rule and left it as deny.</FONT>
</P>
<P><FONT SIZE=2>I've really been trying to talk everyone into a list of extensions to allow and deny everyting else.</FONT>
</P>
<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Jeff Falgout [<A HREF="mailto:JFalgout@co.jefferson.co.us">mailto:JFalgout@co.jefferson.co.us</A>]</FONT>
<BR><FONT SIZE=2>Sent: Friday, July 11, 2003 11:27 AM</FONT>
<BR><FONT SIZE=2>To: MAILSCANNER@jiscmail.ac.uk</FONT>
<BR><FONT SIZE=2>Subject: Re: Allow multiple filename extensions?</FONT>
</P>
<BR>
<P><FONT SIZE=2>>>> Tom Combs <combs@magnet.fsu.edu> 7/11/2003 7:58:13 AM >>></FONT>
<BR><FONT SIZE=2>>Hello,</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>> I'm not clear on the need for denying multiple filename extensions.</FONT>
<BR><FONT SIZE=2>> It seems if an attachment contained a virus, it would be checked by</FONT>
<BR><FONT SIZE=2>> the virus scanner and either caught or cleared regardless of the</FONT>
<BR><FONT SIZE=2>> extension. Does having multiply filename extensions somehow</FONT>
<BR><FONT SIZE=2>> circumvent this process?</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>> I'm considering dropping this ruleset:</FONT>
<BR><FONT SIZE=2>></FONT>
<BR><FONT SIZE=2>>deny \.[a-z][a-z0-9]{2,3}\s*\.[a-z0-9]{3}$ Found possible</FONT>
<BR><FONT SIZE=2>filename hiding</FONT>
<BR><FONT SIZE=2> Attempt to hide real filename extension</FONT>
</P>
<P><FONT SIZE=2>Would the proper way to allow double extensions be to change the "deny"</FONT>
<BR><FONT SIZE=2>to</FONT>
<BR><FONT SIZE=2>"allow" or comment out the line?</FONT>
</P>
<P><FONT SIZE=2>Jeff</FONT>
</P>
</BODY>
</HTML>