[SSSD-users] Avoid (&(objectClass=posixAccount)(uid=*)(uidNumber=*)(gidNumber=*))

Michael Ströder michael at stroeder.com
Sat May 10 14:27:35 UTC 2014


HI!

I'm seeing searches like this sent by sssd to the LDAP server:

(&(objectClass=posixAccount)(uid=*)(uidNumber=*)(gidNumber=*))

Likely this is because some of the server admins set in sssd.conf:

enumerate = true

While it's debatable to disable enumeration I wonder how one can avoid that
sssd uses the filter above.

Since all three attributes are mandantory in objectClass posixAccount anyway
it would be sufficient to do a user numeration search just with filter
(objectClass=posixAccount) because there cannot be an entry without any of
these attributes.

I'm asking because it turned out that the LDAP server's processing of
(&(objectClass=posixAccount)(uid=*)(uidNumber=*)(gidNumber=*)) is two times
slower than just (objectClass=posixAccount).

Ciao, Michael.

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