Hi, >>So, I cut of CONCURRENCY=25 from the >>squid_ldap_group acl line, that I was using for a long time >>with 2.5. Then, just 5 squid_ldap_auth was started and it >>worked again. > > The "concurrency" parameter was renamed still from Squid 2.5 STABLE4 ..... > > You have never read any Squid 2.5 release notes .... > > You must use "children" instead of "concurrency". Or forgot about that situation. :-) I read again the Changelog. You are right, the information is there. Maybe, in those days, I could imagined that until 3.0 concurrency will keep running, as occurred with ldap_auth. :-) Anyway, your information is correct and solved the problem. Really thank you for your attention. Regards, Cássio