Hello, still, I solved this problem as follows: I created new group 'test_inet' in the container 'Users' & enter in it users: 'ldapreader','testproxyad1' Command 'squid_ldap_group' is now work with next syntaxis: /usr/lib/squid/squid_ldap_group -d -v 3 -b "dc=kng,dc=local" -f \ '(&(cn=%v)(memberOf=cn=a%,cn=Users,dc=kng,dc=local))' -D ldapreader@kng.local \ -w 12345678 -h 192.168.4.100 Input in console: ldapreader test_inet Connected OK group filter <...> searchbase <...> OK So, now there is another problem: when i input describe of user, 'squid_ldap_group' working correct, but when i input login, output of command is 'ERR'. Example: In Active Directory user 'test_proxy_ad_1' has login 'testproxyad1'. /usr/lib/squid/squid_ldap_group -d -v 3 -b "dc=kng,dc=local" -f \ '(&(cn=%v)(memberOf=cn=a%,cn=Users,dc=kng,dc=local))' -D ldapreader@kng.local \ -w 12345678 -h 192.168.4.100 Input in console: testproxyad1 test_inet Connected OK ... ERR test_proxy_ad_1 test_inet Connected OK ... OK The new question is follow: how to do that 'squid_ldap_group' check login of user, not describe? Will waiting for response. Best wishes, Paul -- С уважением, CyberSoul mailto:cybersoul@xxxxxxx