+ Post New Thread
Results 1 to 4 of 4
Windows Thread, Exchange OWA through ISA going very strange in Technical; Hi All, Having a bizarre problem with OWA at the moment. We have just installed an ISA server and I ...
  1. #1

    Join Date
    May 2007
    Location
    Kent
    Posts
    121
    Thank Post
    35
    Thanked 10 Times in 9 Posts
    Rep Power
    27

    Exchange OWA through ISA going very strange

    Hi All,

    Having a bizarre problem with OWA at the moment.

    We have just installed an ISA server and I thought I had managed to successfully connect OWA through it. All was working well until everyone went home.

    The next day I got reports that everyone who was logging in was getting other users mailboxes up instead of their own! More research showed that they were seeing the mailbox of the previous person to log in. This affect only happened to external users connecting though the ISA server. Users on the LAN were ok.

    Finally I found that turning off 'HTTP Keep Alives' on the Exchange server solved the problem. However, the performance of OWA with this option off is dreadful and we have been getting a lot of complaints.

    Does anyone else have OWA running through an ISA server and do you have 'HTTP Keep Alives' turned on?

    Any thoughts on why I might be getting the initial problem would be appreciated. I can only assume that the Exchange server sees all the requests as coming from the same computer (the ISA server) and therefore serves a cached page instead of a new logon screen. This would be normal behaviour, like when a user closes their browser and quickly reopens it again, there is no need to log back in. However, this obviously should not be the case when using an ISA server!

    We are using ISA server 2006 and Exchange 2003.

    The attached screenshot shows what a user gets when they visit the OWA page, before they even attempt to log in. The mailbox on the right is that of the previous user.

    Thank you for any help you can give me.

    Tom.
    Attached Images Attached Images

  2. #2

    matt40k's Avatar
    Join Date
    Jun 2008
    Location
    Ipswich
    Posts
    4,135
    Thank Post
    352
    Thanked 577 Times in 474 Posts
    Rep Power
    142
    At a guess...

    Does the LA reverse proxy to your ISA\OWA server? Or do you have direct internet access?

    I'm guess it's proxied, because ISA is seeing all the external connections coming from 1 address, the proxy server.

    Again, total guess.

  3. #3

    Join Date
    May 2007
    Location
    Kent
    Posts
    121
    Thank Post
    35
    Thanked 10 Times in 9 Posts
    Rep Power
    27
    Thanks for the suggestion. Will check it out with the LA and report back!

    Tom.

  4. #4
    Fuzzz's Avatar
    Join Date
    Nov 2008
    Location
    Netherlands
    Posts
    120
    Thank Post
    57
    Thanked 10 Times in 9 Posts
    Rep Power
    13
    Is in your publishing rule under 'To' 'Requests appear to come from the ISA Server Computer' or 'Requests appear to come from the original client' selected?

    My guess is the first option, if so, you could try the second option. This is only possible if the default gateway on your Exchange is pointing to the ISA.

SHARE:
+ Post New Thread

Similar Threads

  1. Exchange OWA and attachments
    By Jobos in forum Windows
    Replies: 2
    Last Post: 13th May 2009, 02:11 PM
  2. Publishing OWA 2003 SSL via ISA 2006
    By Gatt in forum Windows
    Replies: 20
    Last Post: 2nd April 2009, 08:24 PM
  3. Exchange 2007 OWA
    By TheScarfedOne in forum Windows
    Replies: 0
    Last Post: 4th November 2008, 07:53 AM
  4. Exchange OWA
    By clarky2k3 in forum Windows
    Replies: 17
    Last Post: 27th November 2007, 09:34 AM
  5. Exchange OWA issues
    By Grommit in forum Windows
    Replies: 3
    Last Post: 11th September 2006, 08:03 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •