RE: RPC over HTTPS and basic vs NTLM authentication
From: Val Tuckett [MSFT] (valt_at_online.microsoft.com)
Date: 03/25/04
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Date: Thu, 25 Mar 2004 03:44:16 GMT
>I got RPC over HTTPS working as per instructions.
>
>Following the directions, I enabled ONLY basic authentication on the RPC
>virtual web.
>The problem now is that users always have to enter their userid and
password
>every time they go into outlook.
>There is no option to save settings.
>
>Why can we not use integrated authentication? (or can we?)
>
On startup, Outlook will identify if it is running on a fast or slow
network and use either TCP/IP or HTTP(s).
If Outlook constantly prompts for a logon prompt, check the Outlook 2003
options within the Connection > Exchange Proxy Settings to verify you have
the following:
Clear - 'On fast networks, connect using HTTP first, then connect using
TCP/IP'
Check - 'On slow networks, connect using HTTP first, then connect using
TCP/IP'
When Outlook attempts to connect using HTTP, it will authenticate using
basic and there is no option to save the credentials. When connecting via
TCP/IP it will utilise normal RPC calls and authenticate using NTLM,
bypassing your RPC Proxy and connecting directly to the Exchange server.
You can verify the type of connection used by running Outlook with the
/rpcdiag switch.
Regards,
Val
---- Val Tuckett Microsoft PSS This posting is provided 'AS IS' with no warranties and confers no rights. Please do not send email directly to this alias. This alias is for newsgroup purposes only.
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