Dear all I change the authentication of squid making that over LDAP. All the tests from command line with squid_ldap_auth and squid_ldap_group gave me great results for our needs in squid authentication. Now i tried to set the configuration file, working first on the single helpers: so at the moment all i ask is to authenticate the user with ldap to let him navigate. I canno manage to let squid authenticate through ldap even when the same lines work perfectly from command line. The behaviour of squid is: -login box at the request of a web page. -I insert my credentials and the page remain in loading status. -After round about 1 minute, it shows up again the login box. -I give again my credentilas. -After 1 minute again, it gives me the eeror page that say "before have access to this web page you must authenticate....". I paste here my configuratio part of squid_ldap_auth and following logs from access.log: auth_param basic program c:/squid/libexec/squid_ldap_auth.exe -P -R -O -v "3" -s "sub" - b "dc=kamax, dc=org" -D "squidadmin" -w "squid2008" -f "sAMAccountName=% s" -d -h "kxdcrt02.kamax.org" -p "3268" auth_param basic children 10 auth_param basic realm SQUID auth_param basic casesensitive on --------------------------- access.log ........... http://zinfo.de. kamax.org:8080/cgi-bin/pr_info_sys/frame.pl?ZBEREICH=Werkszeichnungen squidadmin NONE/- text/html 1218435332.175 0 172.16.10.219 TCP_DENIED/401 1889 ................. I don´t explain myself why from commandline it works everything so fine but in squid I´m having all these problems. Same if I try to test from squid the squid_ldap_group, the logs say to me the helpers are crashing to quick....I guess is a problem of the login I pass that doesn´t fit with %LOGIN requested from the helper. So I think my main problem is this with squid_ldap_auth, once I´ll have there my authentication should work also the squid_ldap_group. Could you give some advices or let me know if I have to check something more about all that. I was already reading handbook of squid, configuration example and all your post and others from squid mailing list but I didn´t find nothing helpful. Really lot of thanks in advance. Best Regards Antonio