389 is the standard LDAP port. 636 is LDAPS - LDAP Over SSL it's
comparable to 80 and 443 ... one is unecrypted and one isn't.

As far as the GC port, this is LDAP too, but, it's only listening on
domain controllers which are global catalogs in your forest. The global
catalog holds a partial replica of every object in your forest. The
attributes it holds are often known as the partialAttributeSet. Not sure
what specifically to tell you here, I think I covered the port. GCs are
required for logon, certain apps like Exchange, etc. 

Thanks,
Brian Desmond
[EMAIL PROTECTED]
 
c - 312.731.3132
 
 

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:ActiveDir-
> [EMAIL PROTECTED] On Behalf Of Ravi Dogra
> Sent: Wednesday, January 18, 2006 8:36 PM
> To: [email protected]
> Subject: Re: [ActiveDir] LDAP and Global Catalog
> 
> Please explain...
> 
> Wht abt port 389 and 636. and GC at 3268.
> 
> i m a bit confused here....
> 
> 
> --
> RD
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