System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP)

Timeout/Size Limits and Referral Action for LDAP Communication

The above parameters are timeouts for the ldap bind, modify, add, and delete operations, respectively. They should generally be left at their default values.

The above parameters set the timeout for the LDAP search operation, and request a server-side search time limit, respectively. Since the nisplusLDAPsearchTimeLimit will control how much time the LDAP server spends on the search request, make sure that nisplusLDAPsearchTimeLimit is not smaller than nisplusLDAPsearchTimeout. Depending on the performance of the NIS+ server, the LDAP server, and the connection between them, you might have to increase the search limits from the default values. Watch for timeout syslog messages from rpc.nisd as a clue to making these values larger.