Port Exhaustion on ISA Server 2006 while Publishing Outlook Anywhere

Last week we (ISA Server Team in Texas) faced an interesting issue where remote Outlook Clients using RPC over HTTPs were not able to communicate with the internal Exchange Server. Pretty challenge case since on the ISA Server side there was nothing really obvious missing, netmon also didn’t help that much, but the old netstat…


Forefront TMG MBE (with or without EBS)

My fellow friend Tom Shinder wrote this week about the articles that we were migrating from ISA to TMG and he was surprise with the TMG in Hork Mode (as he said), later he posted about the difference between TMG MBE and TMG EBS in another post. I understand the confusion since it was not…


DNS/NAT update available for ISA and TMG

We just released an update for ISA (2000, 2004 and 2006) and TMG MBE for the behavior that Jim Harrison explained in a post about MS08-037 on ISA Team Blog.   They are available at:   957298 Forefront Threat Management Gateway, MBEhttp://www.microsoft.com/downloads/details.aspx?FamilyId=E974422F-42B0-426C-8852-FF8E67264909   956570 ISA Server 2006 update http://www.microsoft.com/downloads/details.aspx?FamilyId=E96A6E20-0C04-4C7D-9F3E-207B02AE29CC   956637 ISA Server 2000 update…


Using IE8 to mitigate XSS attack

Yesterday I was playing a little bit with IE8 when I received the following warning message in IE window:   Internet Explorer has modified this page to prevent a potential cross-site-scripting attack.   Yep, that’s right: IE8 now mitigates XSS attack by using the built in XSS Filter. Do you want to know more about…


502 Proxy Error on ISA Server 2006

Have you ever received one of the errors below while browsing a web site?   The page cannot be displayed There is a problem with the page you are trying to reach and it cannot be displayed. Technical Information (for support personnel) Error Code: 502 Proxy Error. The HTTP message includes an unsupported header or…


New TMG articles available at support.microsoft.com

The global Forefront Edge Security Team worked hard for the last 45 days to review and validate the old ISA articles and see if they were applicable for TMG. As result we have the first wave of articles already live at Microsoft KB Web Site. You can review it here.  


IAG 2007 SP2 is Announced

This week at TechEd EMEA in Barcelona there will be lots of news about TMG and IAG/UAG. But one of that upcoming news was already announced yesterday, which is the new IAG SP2. For more information about that access the IAG Team blog at web site: http://blogs.technet.com/edgeaccessblog/archive/2008/11/02/iag-sp2-it-is-all-about-the-application.aspx