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Proxy Server Authentication

Posted on 2004-10-14
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Last Modified: 2010-04-13
I am an ISA Novice. But this has been a very difficult trial for me. We do use a proxy server.

Part 1.

Some websites that are visited on my network my clients are greeted with an enter password box that states...

Please type your user name and password.
Connecting to proxy server <our server name>
realm: <our server name>

<user name>
<password>

A perfect example would be for like Yahoo's Launchcast music. This has hindered me I believe in syncronizing my SUS Server as well deploying a special credit card software for my accting dept. It is like my authentication scheme is off but I just don't know.

I have banged my head on this but like I said I am just a novice currently taking MCSE classes learning on the fly.


Part 2.

Below is an Auth error from the accting software

18:07:19 Initialize - HTTPSCnx : URLPort = 443
18:07:19 Initialize - HTTPSCnx : UseWinInet = False
18:07:19 Initialize - HTTPSCnx : Exit
18:07:19 tmrPost_Timer - frmHTTPS(1) : Enter
18:07:19 StartConnectTimer - frmHTTPS(1) : Interval: 60
18:07:19 HTTPS_Error - frmHTTPS(1) : HTTPS
18:07:19 StopConnectTimer - frmHTTPS(1)
18:07:19 mfrm_Error - HTTPSCnx : Enter
18:07:19 mfrm_Error - HTTPSCnx : ErrorCode = 118
18:07:19 mfrm_Error - HTTPSCnx : Description = HTTP/1.1 407 Proxy Authentication Required ( The ISA Server requires authorization to fulfill the request. Access to the Web Proxy service is denied.  )
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Question by:zyanj
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nihlcat earned 1500 total points
ID: 12313528
It sounds like you are blocking SSL requests at the ISA proxy.  Does your network use port 443 for SSL?

If you have access to the ISA server, open the ISA management concole, right click the server name and go to Properties.  There is a tab in there where you can specify you authentication settings, assuming you want to of course.  I believe you can specify the port you want to use for SSL port in there as well (My memory is fuzzy).

Also, your ISA server will also have a Default Protocol rule, which specifies what happens when a user requests a resource using a specific port (ie: 21, 80, 443).  You need to ensure that whatever port handles SSL is listed AND allowed here.
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