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MS Proxy 2.0 not passing authentication

By mlsnead ·
When our internal clients (configured to use a proxy server) try to access our exchange server via the internet (web access) using secure socket layers they get prompted twice for their username and password.

The second time it asks you don't even need to put in the information again, you can hit cancel and then refresh the page.

If we take off the proxy configuration from the client, or tell it not use proxy for that specific site, then it works fine (only 1 prompt), but we would like tofix it from the server end in some way.

We are running MS Proxy Server 2.0 as a chaching only server on a NT 4.0 box, and Exchange 5.5 on a Windows 2000 box (all latest service packs).

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MS Proxy 2.0 not passing authentication

by me In reply to MS Proxy 2.0 not passing ...

Try to check the MS Proxy 2.0 configuration, These are the possible cause of it:

1. Your client must to log on to the LAN thus will avoid double authentication.

2. Or there is an option in proxy server where you could disable proxy server to authenticate connected users everytime they connect to internet thru proxy server (i.e. to allow anonymous connections).

Cheers.

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MS Proxy 2.0 not passing authentication

by mlsnead In reply to MS Proxy 2.0 not passing ...

The proxy server isn't what is requestion the user name and password the second time. What happens is when you go to the first secure page on web access it prompts you and you put in the information; fine. Then you type your mailbox name to get toyour mailbox and it prompts you again (because the proxy server is stopping the already authenticated data from passing through it). You can cancel the second box and then hit refresh and the mailbox comes up. Normal browsing using the proxy server is fine (no prompting for passwords).

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MS Proxy 2.0 not passing authentication

by mlsnead In reply to MS Proxy 2.0 not passing ...

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