RE: OWA behind ISA

  • From: "Mark Hippenstiel" <M.Hippenstiel@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Sun, 17 Aug 2003 21:34:04 +0200

David you should take a closer look at your settings there. When
<exch_ip> in http://<exch_ip>/exchange resolves to an internal ip
address _and_ you have no proxy settings configured I don't see a reason
why the request should be intercepted by ISA. 

Make sure that the ISA box can resolve internal names correctly too.
From what I understand this is not be the case, unless you happen to use
SBS.

Maybe you'd want to post more detailed information on your network
setup.

- from what client(s) are you trying to reach OWA (ip address,
SecureNAT/FW client)
- what are the DNS settings on that machine
- where's the AD and exchange installed

And of course, check the great articles on isaserver.org ;)

Mark



> -----Original Message-----
> From: David Liles [mailto:dave@xxxxxxxxxxxxxxxxxxx] 
> Sent: Sunday, August 17, 2003 9:11 PM
> To: [ExchangeList]
> Subject: [exchangelist] RE: OWA behind ISA
> 
> 
> http://www.MSExchange.org/
> 
> The system I'm on is not configured to use proxy 
> connections.... The LDT lists *ourdomain Testing OWA 
> internally, I've been entering the URL configured in 
> Exchange's HTTP virtual server for the site. I'm guessing DNS 
> is configured correctly... we have the internal NIC referring 
> to itself for DNS and then configured forwarding and point to 
> our ISP's DNS....
> 
> -----Original Message-----
> From: Mark Hippenstiel [mailto:M.Hippenstiel@xxxxxxxxxxxx]
> Sent: Sunday, August 17, 2003 2:05 PM
> To: [ExchangeList]
> Subject: [exchangelist] RE: OWA behind ISA
> 
> 
> http://www.MSExchange.org/
> 
> David,
> You should configure your browser settings to bypass proxy 
> for local addresses and check that you included your internal 
> domain in the LDT in ISA. I'm not sure about the 403. How do 
> you access OWA internally? Is your DNS configuration ok? Does 
> the host you specify resolve to an internal ip? 
> 
> Mark
> 
> > -----Original Message-----
> > From: David Liles [mailto:dave@xxxxxxxxxxxxxxxxxxx]
> > Sent: Sunday, August 17, 2003 8:51 PM
> > To: [ExchangeList]
> > Subject: [exchangelist] RE: OWA behind ISA
> > 
> > 
> > http://www.MSExchange.org/
> > 
> > Thanks for the suggestion but the setting was already
> > configured.... I'm thinking it is related to an ISA 
> > configuration, though we've followed the MS KB's relating to 
> > OWA configuration.
> > 
> > One thing I'm wondering, is there something specific we need
> > to configure to allow internal web access to the server? When 
> > on the intranet we are getting the below error which leads me 
> > to believe that we missed an internal ISA web configuration...
> > 
> > 403 Forbidden - The server denies the specified Uniform
> > Resource Locator (URL). Contact the server administrator. 
> > (12202) Internet Security and Acceleration Server
> > 
> > -----Original Message-----
> > From: Mark Fugatt [mailto:mark@xxxxxxxxx]
> > Sent: Sunday, August 17, 2003 12:28 PM
> > To: [ExchangeList]
> > Subject: [exchangelist] RE: OWA behind ISA
> > 
> > 
> > http://www.MSExchange.org/
> > 
> > Not sure if this one applies but you might want to take a
> > look: http://support.microsoft.com/default.aspx?scid=kb;en-us;327003
> > 
> > Mark Fugatt
> > MCT, MCSE, Microsoft Exchange MVP 
> > Pentech Office Solutions Inc 
> > Tel:  585 586 3890
> > Cell: 585 576 4750
> > Fax:  585 249 0316 
> > www.4mcts.com 
> > www.exchangetrainer.com 
> > 
> > 
> > -----Original Message-----
> > From: David Liles [mailto:dave@xxxxxxxxxxxxxxxxxxx]
> > Sent: Sunday, August 17, 2003 1:12 PM
> > To: [ExchangeList]
> > 
> > http://www.MSExchange.org/
> > 
> > We are trying to configure OWA on our Exchange 2000 server
> > that is located on our internal network.
> > 
> > We are able to send and receive regular Outlook email
> > however, when attempting to access email via OWA we get the 
> > following error:
> > 
> > 403 Forbidden - The server denies the specified Uniform
> > Resource Locator (URL). Contact the server administrator. 
> > (12202) Internet Security and Acceleration Server
> > 
> > We have followed KB articles 287646 and 308599
> > 
> > We are not even able to access OWA from within our own network...
> > 
> > Thanks
> > 
> > Dave
> > 
> > ------------------------------------------------------
> > List Archives:
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> > Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp
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> > ------------------------------------------------------
> > Other Internet Software Marketing Sites:
> > Leading Network Software Directory: 
> > http://www.serverfiles.com No.1 ISA Server Resource Site: 
> > http://www.isaserver.org Windows Security Resource Site: 
> > http://www.windowsecurity.com/ Network Security Library: 
> > http://www.secinf.net/ Windows 2000/NT Fax Solutions: 
> > http://www.ntfaxfaq.com
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> > ------------------------------------------------------
> > Other Internet Software Marketing Sites:
> > Leading Network Software Directory: 
> > http://www.serverfiles.com No.1 ISA Server > Resource Site: 
> > http://www.isaserver.org Windows Security Resource Site: 
> http://www.windowsecurity.com/ Network Security Library: 
> http://www.secinf.net/ Windows 2000/NT Fax Solutions: 
> http://www.ntfaxfaq.com
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> List Archives: 
> http://www.webelists.com/cgi/lyris.pl?enter=exchangelist
> Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp
> Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ
> ------------------------------------------------------
> Other Internet Software Marketing Sites:
> Leading Network Software Directory: 
> http://www.serverfiles.com No.1 ISA Server Resource Site: 
> http://www.isaserver.org Windows Security Resource
> Site: http://www.windowsecurity.com/ Network Security 
> Library: http://www.secinf.net/ Windows 2000/NT Fax 
> Solutions: http://www.ntfaxfaq.com
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> ------------------------------------------------------
> List Archives: 
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> 
> Exchange Newsletters: 
> http://www.msexchange.org/pages/newsletter.asp
> Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ
> ------------------------------------------------------
> Other Internet Software Marketing Sites:
> Leading Network Software Directory: 
> http://www.serverfiles.com No.1 ISA Server > Resource Site: 
> http://www.isaserver.org Windows Security Resource Site: 
http://www.windowsecurity.com/ Network Security Library:
http://www.secinf.net/ Windows 2000/NT Fax Solutions:
http://www.ntfaxfaq.com
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------------------------------------------------------
Other Internet Software Marketing Sites:
Leading Network Software Directory: http://www.serverfiles.com No.1 ISA
Server Resource Site: http://www.isaserver.org Windows Security Resource
Site: http://www.windowsecurity.com/ Network Security Library:
http://www.secinf.net/ Windows 2000/NT Fax Solutions:
http://www.ntfaxfaq.com
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