Hello to all, I'm having problem using this enviroment: Squid 2.7.STABLE7 Samba 3.4.7 Squid.conf auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 5 auth_param ntlm keep_alive on auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours smb.conf workgroup = domain netbios name = NETSERVER server string = PROXY SERVER load printers = no log file = /var/log/samba/log.%m max log size = 500 winbind trusted domains only = yes realm = domain.ltd security = ads auth methods = winbind password server = Server.domain.ltd winbind separator = + encrypt passwords = yes winbind cache time = 3600 winbind enum users = yes winbind enum groups = yes winbind use default domain = false idmap uid = 10000-20000 idmap gid = 10000-20000 local master = no os level = 233 domain master = no preferred master = no domain logons = no wins server = 10.0.0.249, 10.0.0.250 dns proxy = no ldap ssl = no load printers = no template shell = /sbin/nologin The problem is when some user request webpages i have alot with of 680 EVENT (logon) in Windows events/security, with seconds of interval and sometimes the user account are locked. I supose the account is locked because user makes alot of authentication requests. Some way to fix this? Thanks, Stacker