Security Basics mailing list archives
Re: Webserver on a DMZ still needed?
From: "MandommGmail" <mandomm () gmail com>
Date: Tue, 5 Sep 2006 23:48:15 +0800
Normal networks are divided into LAN and DMZ.Those stuff that you want the Internet to access, we normally put in DMZ, so that in the event that a server is hacked, only the particular network is exposed.
There are a few reasons why you want to put exchange on DMZ. 1) You want it public, maybe to use its webmail?2) Even if you put Exchange on DMZ, you can still use the server as domain controller. Maybe some NAT or some firewall changes but I do not see any problem with that.
Anymore? I do not know. But I do not see any problem with shifting it to DMZ.
Alex The reason----- Original Message ----- From: "Davie Elliott - Eluse" <delliott () eluse co uk>
To: <security-basics () securityfocus com> Sent: Sunday, September 03, 2006 7:42 PM Subject: Webserver on a DMZ still needed?
Hi all, I have been working as a systems admin for a charity for about 3 years, I have no schooling in network I have learnt everything myself. During my research I read that servers with public services should be put on aseparate subnet which is used as a DMZ (such as POP3, SMTP, webserver ect).Recently I have left that charity and a network company is taking over the administration, and they want to put the Exchange (email) server on thetrusted network subnet (the network has a smoothwall firewall, so there areliterally 2 separate networks). My question is this: does the Exchange server definatly, need to be put in the DMZ? Or should Microsoft have patched all the vulnerabilities by now? There isn't any other software onthe server, such as forums which I see have vulnerabilities found just aboutever day.Secondly, if the Exchange server is on the DMZ subnet, how do you get it tointeract securely with the Domain Controller on the secure subnet? When I built the network, I made the Exchange server its own Domain Controller. Thanks for your advice, Davie Elliott --------------------------------------------------------------------------- This list is sponsored by: Norwich University EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE The NSA has designated Norwich University a center of Academic Excellencein Information Security. Our program offers unparalleled Infosec managementeducation and the case study affords you unmatched consulting experience.Using interactive e-Learning technology, you can earn this esteemed degree,without disrupting your career or home life. http://www.msia.norwich.edu/secfocus ---------------------------------------------------------------------------
--------------------------------------------------------------------------- This list is sponsored by: Norwich University EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINEThe NSA has designated Norwich University a center of Academic Excellence in Information Security. Our program offers unparalleled Infosec management education and the case study affords you unmatched consulting experience. Using interactive e-Learning technology, you can earn this esteemed degree, without disrupting your career or home life.
http://www.msia.norwich.edu/secfocus ---------------------------------------------------------------------------
Current thread:
- Webserver on a DMZ still needed? Davie Elliott - Eluse (Sep 05)
- RE: Webserver on a DMZ still needed? Peter Marshall (Sep 05)
- RE: Webserver on a DMZ still needed? Robert D. Holtz - Lists (Sep 05)
- RE: Webserver on a DMZ still needed? Murda Mcloud (Sep 06)
- RE: Webserver on a DMZ still needed? Steve Armstrong (Sep 06)
- Re: Webserver on a DMZ still needed? Micheal Espinola Jr (Sep 07)
- Re: Webserver on a DMZ still needed? MandommGmail (Sep 05)
- Re: Webserver on a DMZ still needed? irado furioso com tudo (Sep 05)
- Re: Webserver on a DMZ still needed? MaddHatter (Sep 06)
- <Possible follow-ups>
- RE: Webserver on a DMZ still needed? Verma, Neeraj K (Sep 05)
- Re: Webserver on a DMZ still needed? lexnlondon (Sep 05)
- Re: RE: Webserver on a DMZ still needed? vikas . leekha (Sep 06)
- RE: Webserver on a DMZ still needed? Peter Marshall (Sep 05)