I am new to LDAP, so my experience is limited. I have inherited a system which has an LDAP server using Netscape Directory Server 4.1 on Solaris 8, and a single LDAP client also on Solaris 8. We use the LDAP to authenticate users and groups, and this worked fine until the number of users reached around 1000. Now we have problems. The ldap client cannot resolve group names which have large numbers of users. This slows the client down when doing simple tasks like ls -al as it tries to resolve group names. Any help would be appreciated.