I believe it works like... Outlook clients are not site-aware. By default Outlook uses the GC handed out by the DSPROXY/DSACCESS proces of the Exchange server that is hosting the mailbox of the user. It will thus (again by default) not use a closest GC like a Windows 2000/XP/2003 client would. This behavior can be though and it is described in MS-KBQ319206. But at least for OL2003 RTM, the complete process goes like this: 1) If "DS Server" registry key set, use that GC 2) If "Closest GC" registry key set, call UseDsGetDcName() 3) If fast network adapter, get DS Referral from home Exchange server 4) If slow network adapter, attempt connect with GC in MAPI profile 5) Connect to DSProxy from home Exchange server Cheers Jorge
________________________________ From: [EMAIL PROTECTED] on behalf of joe Sent: Fri 9/23/2005 6:07 PM To: [email protected] Subject: RE: [ActiveDir] global catalog discovery / Outlook XP If outlook is configured to use nearest GC I believe it simply falls back to whatever the OS says to use. Check to see if nltest /dsgetdc:forestrootdomain /gc matches up with the Exchange server you use for AB/NSPI ops from outlook. Obviously you could start a network sniffer and see what happens when outlook fires up as well. joe -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Graham Turner Sent: Friday, September 23, 2005 11:05 AM To: [email protected] Subject: [ActiveDir] global catalog discovery / Outlook XP Dear all, i have been away from the list for absolutely ages but i need to go over an issue of GC discovery with Outlook XP that need some help on. this may be regarded as OT to this list, but have posted on an MS Outlook newsgroup site with nothing back so i hope this post to be in order. i recall what ended up as a trilogy many months ago on a similar topic but need to get fairly specific information on the mechanisms used by Outlook XP to locate a GC server. there was much discussion on the configuration of Outlook to use local GC discovery (by way of the CLOSESTGC reg value) but on the basis of this configuration can anyone elaborate on the mechanism that Outlook configured as such uses to locate a GC. as i understand the MS documentation, this registry value disables the 'referral' that the client gets (presumably from DSACCESS / DSPROXY). as such it must then have its own mechanism - THIS IS WHAT WE ARE INTERESTED IN - we have attempted loading the SRV RR's (ldapsrvpriority) so the discovery process is loaded towards a particular GC, but this does not seem to prevail as always assistances gladly received. GT List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you. List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
