Security Basics mailing list archives

Re: Securing webmail - changing a port necessary to ensure security?


From: "Phillip McCollum" <PMcCollum () sanmanuel com>
Date: Thu, 12 Feb 2004 08:24:44 -0800

I may be wrong here, but as far as affecting clients accessing the
webmail from another organization, it shouldn't matter since clients
normally use a random port number >1024 to access servers.  But I'm
still pretty new to some of this stuff, so someone please correct me if
I'm mistaken.

Thanks,
Phillip

Phillip McCollum
Network Technician - Level One
MCSE:Security, CNA, Security+, A+
San Manuel Band of Mission Indians
pmccollum () sanmanuel com
(909) 496-0310

"Jennifer Fountain" <jfountain () rbinc com> 2/11/2004 8:02:34 AM >>>
I am going back and forth on this one with a consultant on this one
and
need an expert opinion.  So, I turn to you :)  When configuring
webemail
(such as owa) that is using https, is it better to change the default
port (443) to an uncommon port (20000)for security reasons?  Does it
secure it further by doing this?  Wouldn't it cause more issues than
anything if you try to access that site from inside an org that only
allows port 80/443 and 21 out?  

Thank you in advance for any opinions you may share.

Kind Regards,

Jennifer Fountain

---------------------------------------------------------------------------
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 
----------------------------------------------------------------------------


---------------------------------------------------------------------------
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
----------------------------------------------------------------------------


Current thread: