Question

OWA not accesable through ISA on SBS 2003

Asked by: dmalford

My OWA problems lie within the ISA configuration.  I have diagnosed this issue on several different sites and have reinstalled IIS, ISA, and Exchange.

When trying to connect to my OWA site using the mail.myserver.com address,  I receive the following error:

The page cannot be displayed
There is a problem with the page you are trying to reach and it cannot be displayed.

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

Please try the following:

Click the Refresh button, or try again later.

Open the Web site home page, and then look for links to the information you want.
If you believe you should be able to view this directory or page, please contact the Web site administrator by using the e-mail address or phone number listed on the Web site home page.
11004 - Host not found
Internet Security and Acceleration Server

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

Technical Information (for support personnel)

Background:
This error indicates that the server, while acting as a gateway or proxy, could not find the IP address of an upstream content server.
 
But when trying to reach the server using http://servername/exchange , internally it works.

This issue started when after reinstalling ISA and not being able to send or receive email on Exchange.  I then noticed that the ISA server did not automatically create all of the necessary Destination Set as well as Web Publishing rules.  I do have another SBS 03 server that I was able use as template to get the ISA reconfigured but in doing it killed my OWA and generated the error above.

For you ISA gurus: What in ISA would prevent me from accessing this site externally.  

I have tried the following solutions but nothing has worked:

http://support.microsoft.com/default.aspx?kbid=832223

http://www.webservertalk.com/archive51-2004-8-357055.html

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Asked On
2005-02-03 at 12:45:07ID21300968
Tags

11004

,

isa

,

owa

Topics

Network Software Firewalls

,

Enterprise Firewalls

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Comments
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Answers

 

by: srikrishnakPosted on 2005-02-03 at 17:56:22ID: 13221593

Well i dont think so its a DNS related issue. Rather the configuration of ISA. Have you opened the ports on ISA..??
Just make sure you have opned the required ports(25,110,whtever u use on ur mail server.like pop3,smtp,...).Then make sure the connectivity is there from external.
one more thing comes to my mind is can you see any logs from ISA server ???

 

by: dmalfordPosted on 2005-02-03 at 19:11:54ID: 13221978

That's what confuses me. All of the ports are configured correctly on the server and OWA worked fine before I added the following IP Packet Filters:

SBS SMTP 25 Out CustomFilterSBS SMTP 25 Out CustomFilter
SBS SmtpPredefinedType
SBS Remote Web Workplace CustomFilter

Ater reinstalling ISA these filters were not created and OWA worked fine.  I will try disable these to see which one is casuing the issue.  

 

by: pazmanproPosted on 2005-02-03 at 20:30:57ID: 13222397

Try the SBS remote web filter. I know that 443 (HTTPS) is one of the ports used for the SBS remote.

 

by: dmalfordPosted on 2005-02-06 at 15:58:57ID: 13240655

I disabled packet filter but no change.  Also it works fine on a PDA.

 

by: srikrishnakPosted on 2005-02-06 at 18:09:11ID: 13240934

Well any logs from ur ISA....N how about the connectivity issue from outside....One more thing as u mentioned in ur last post..it works fine on a PDA..>> u mean to say u can access ur mail from a PDA??

 

by: dmalfordPosted on 2005-02-07 at 09:12:32ID: 13246356

68.209.113.91      anonymous      Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)      2005-02-07      17:05:56      CASCADE01      -      mail.myserver.org      -      80      125      421      -      http      GET      http://publishing.myserver.local/exchange      Inet      11004

This is the log entry from a test that I conducted.  I have search every support document for the solution to Error 11004.

I can access the OWA using any Pocket PC based PDA's (HP IPAQ 6315) web browser and it works fine.

 

by: BembiPosted on 2005-02-08 at 16:45:18ID: 13260222

The error code means:
11004: The requested name is valid, but no data of the requested type was found.

You are using ISA 2000, as it is deliverd with SBS 2003 by default?

I assume the following:

1.) Have a look at ISA MMC and right click your server name - properties. You see there "incoming requests" and there should be a rule, which defines, which externals IP addresses (or all) can access the server. Also you can see, on which ports your external Interface will listen to. If you click "edit", you can define authentication methods.

If you have IIS on the same machine, you first have to make sure, that IIS and ISA are not listening on the same IP address and the same port. As IIS is listening on all IP addresses by default, you may run into a conflict. See the following article, how to advice IIS (on W2003 Server) only to listen on its internal IP-Adress, so you can let ISA listen on port 80 / 443 on the external NIC.
http://support.microsoft.com/default.aspx?scid=kb;en-us;813368

2.) IF Exchange / OWA is not installed on the same machine than ISA, you will need an additional web publishing rule, which redirects the request to another internal server.

 

by: dmalfordPosted on 2005-02-09 at 10:15:45ID: 13267079

Bembi
Thanks for the detail.
1.)  I checked the ISA Server setting and the server is listening on the external IP.  Also, I did fail to mention that I'm able to access the server remotely using Terminal Server as well.  

I installed the httpcfg utility and it shows the following reults:

httpcfg query iplisten
IP: 192.168.16.2
IP: 127.0.0.1

When compared to a working server, I got the same result.

2.) This is an SBS 03 server with all applications residing on the same server.

 

by: BembiPosted on 2005-02-10 at 14:17:15ID: 13280883

As you said, that it worked before adding the three new packet filters, can you decribe the settings of these filters?

Also, I'm a little bit wondering about http://publishing.myserver.local/exchange  
publishing is the server name? Or an alias or host header name?
myserver your domain?

 

by: dmalfordPosted on 2005-02-10 at 20:57:53ID: 13283191

SOLUTION FOUND!
I ran the Internet Connection Wizard and lo and behold it worked.  I'm going to go back through all of my settings to see what changed.  Prior to me adding missing ISA parts the wizard would not complete without an error.

 

by: BembiPosted on 2005-02-11 at 03:33:13ID: 13284515

The Internet Connection Wizard is only setting the proxy settings for your internet connection / IExplorer. This is of course a reason for a single client. Or have you run it on the server itself?

 

by: srikrishnakPosted on 2005-02-11 at 06:28:56ID: 13285909

Agree wit Bembi...Its a bit strange..But after all we are too some time misses the basic things and look for some complex things(LOL)....anyway congrats as you have got the solution....

 

by: dmalfordPosted on 2005-02-11 at 06:39:40ID: 13286033

The Internet Connection Wizard from the Server Manager'sTo Do List.  It is evedent that when I reinstalled ISA it completed without any errors but it did not create all of the components needed for all of the applications to work.  I tried several different solutions to correct this problem but to no avail the wizard would fail on the Firewall configuration.  

 

by: srikrishnakPosted on 2005-02-15 at 01:27:41ID: 13311963

Sorry the last comment was not able to understand...i guess the problem has been rectified...??Right

 

by: stagetechPosted on 2006-02-03 at 07:08:14ID: 15863905

when i run the wizrd there is no option for OWA?

 

by: dmalfordPosted on 2006-02-03 at 20:21:52ID: 15870774

stagetech
Arre you running the Internet Connection wizard from the To Do list in Server Manager?

 

by: DarthModPosted on 2006-03-12 at 05:21:02ID: 16167170

PAQed with points (500) refunded

DarthMod
Community Support Moderator

20120131-EE-VQP-002

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