Sorry, to reply my own email I get my testing squid_ldap_group. # /usr/lib/squid/squid_ldap_group -b "ou=paume,o=itb,c=id" -D "cn=admin,ou=paume,o=itb,c=id" -w "rahasia" -h localhost -f uid=%v admin admin OK The filter I use, is matching the uid with userpassword. I am planning to match the uid with userCertificate. Then, how do I make the search filter? Thanks ---- Students of Bandung Institute of Technology Indonesia Zaki Akhmad