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Active Directory - Search filter optimization

Posted on 2010-08-17
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Last Modified: 2012-08-14
Hello Experts,

I'm building an ASP.NET webpage that pulls the users info via Active Directory.  Right now it's working, but slower than I'd like.  So I'm trying to optimize my search filter in hopes of speeding up the search.  Right now my search filters is setup like so:

Mysearcher.Filter = "(&(objectCategory=person)(objectClass=user)(samAccountName=" & strNetworkID & "))"

Can anyone help me to tweak this for faster performance?

Thanks,
Moe
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Question by:mauricerichard
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by:mrfixit584
ID: 33454818
The filter is pretty much as lean as it can be. The question is, how much of the tree are you searching, and do you need to search the entire tree? If all of your users are in a sub-OU, you could restrict your search to that OU instead of searching the entire structure.
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by:mauricerichard
ID: 33464251
Hi Mrfixit584,

I'm struggling with Active Directory, so pardon any silly questions.  
Where would I indicate this, in the search filter or DirectoryEntry?

See code sample for examples

Thanks,
Moe
Mysearcher.Filter = "(&(objectCategory=person)(objectClass=user)(samAccountName=" & strNetworkID & "))"

'OR

Dim rootEntry As New DirectoryEntry("LDAP://domain/DC=domainDN,DC=com", "username", "password")

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mrfixit584 earned 2000 total points
ID: 33562073
It would be part of the LDAP call. instead of LDAP://dc=domain,dc=com, make it more specific. LDAP://ou=myOU,dc=domain,dc=com. For some of my searches, this isn't possible, but if the objects you are searching are in a certain location, you can specify the location so the search doesn't include the entire domain.
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by:mauricerichard
ID: 33599040
Sorry been away from the office.  Great info, thanks very much!
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