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Failed Connection Attempt
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Failed Connection Attempt - 18.Aug.2008 3:27:48 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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Dear All,
Please find below the error , ISA server is keep on logging whenever outlook configured in the Client Pc's are trying to access External Exchange Server.
Failed Connection Attempt
Log Type: Web proxy(Forward)
Status : 995 The I/O operation has been aborted because of either a thread exit or an application request.
Note: Even there is an error in the ISA logs, Outlook is still working but taking long time to send or receive mail.
Please any body help me to solve this problem.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 18.Aug.2008 9:16:17 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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Yes Outlook is configured to access https://mail.getgroup.com Exchange server.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 18.Aug.2008 10:04:32 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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How do i check the authentication in the rule? I Simply created a default rule to allow all the outbound traffic to all the users.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 19.Aug.2008 10:17:45 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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I have created a new rule to allow all outbound traffic from internal to external.
New Rule --->All Outbound traffic---> Internal Network---->External Network -----> All Users.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 21.Aug.2008 8:46:56 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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No. Even i allow all the outbound traffic, the error message is appearing.
Thanks
Abdul Rahuman.M
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RE: Failed Connection Attempt - 21.Aug.2008 10:08:28 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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Their default gateway is the router which is directly connected to the internet.
Please note , the ISA firewall client is installed in all the client machines.
Thanks and Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 22.Aug.2008 10:25:10 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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Yes , all the machines including ISA server are in the same Domain.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 24.Aug.2008 12:36:52 PM
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tshinder
Posts: 47490
Joined: 10.Jan.2001
From: Texas
Status: offline
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Are the Firewall clients successfully connecting to the ISA firewall? Is the Firewall cliient configuration updating the Web Proxy client configuration correctly?
Tom
_____________________________
Thomas W Shinder, M.D.
Sr. Consultant/Technical Writer
Prowess Consulting http://www.prowessconsulting.com/
Blog: http://blogs.isaserver.org/shinder/
GET THE NEW ISA 2006 Book!: http://tinyurl.com/2gpoo8
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RE: Failed Connection Attempt - 25.Aug.2008 4:11:16 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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All the Firewall clients are working well , all the users are browsing fine. The error is occuring in the server only, when anyone browse the htpps site and working on outlook since it is configured to access exchange server through https.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 26.Aug.2008 1:58:26 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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Yes , you are correct.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 26.Aug.2008 8:38:58 AM
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tshinder
Posts: 47490
Joined: 10.Jan.2001
From: Texas
Status: offline
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OK, that sounds like the rule you created to allow outbond HTTPS connections has a path limitation or maybe you set it to restrict to certain MIME types. Also, if you set an HTTP Security Filter setting for the SSL rule, it might block connections too, since the firewall can't see inside the SSL tunnel without using ClearTunnel.
HTH,
Tom
_____________________________
Thomas W Shinder, M.D.
Sr. Consultant/Technical Writer
Prowess Consulting http://www.prowessconsulting.com/
Blog: http://blogs.isaserver.org/shinder/
GET THE NEW ISA 2006 Book!: http://tinyurl.com/2gpoo8
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RE: Failed Connection Attempt - 26.Aug.2008 10:10:35 AM
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mrjahnara
Posts: 54
Joined: 12.Aug.2008
From: Dubai
Status: offline
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Thanks for your kind response again.
I havent block any outbound traffic. I have created only one rule which is to allow all the outbound traffic to external network from internal.
Regards
Abdul Rahuman.M
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RE: Failed Connection Attempt - 28.Aug.2008 8:15:01 AM
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tshinder
Posts: 47490
Joined: 10.Jan.2001
From: Texas
Status: offline
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I'm out of ideas. Maybe you can find somebody local to look at your firewall configuration. I'm sure it's something simple that somebody knowledgeable about the firewall will be able to easily fix.
HTH,
Tom
_____________________________
Thomas W Shinder, M.D.
Sr. Consultant/Technical Writer
Prowess Consulting http://www.prowessconsulting.com/
Blog: http://blogs.isaserver.org/shinder/
GET THE NEW ISA 2006 Book!: http://tinyurl.com/2gpoo8
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