Hi all, I'm having trouble getting ntlm_auth working with the "--require-membership-of=" option. I did rebuild the Samba RPM so that it had the --enable-auth="ntlm,basic" and --enable-external-acl-helpers="wbinfo_group" settings. The command line test for the squid-2.5-basic protocol returns an "OK". The one using the squid-2.5-ntlmssp protocol returns what looks like a line that should be going to a log file and then a "BH". Any time that I add the --require-membership parameter to the ntlm_auth line in my squid.conf file it fails every time. Below are the config lines I'm using: # Experimental Domain Authentication auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp --require-membership-of=MERCURY\WebAccess auth_param ntlm children 30 auth_param ntlm max_challenge_reuses 0 auth_param ntlm max_challenge_lifetime 2 minutes auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic --require-membership-of=MERCURY\WebAccess auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours acl AuthorizedUsers proxy_auth REQUIRED http_access allow all AuthorizedUsers -- Michael St. Laurent Hartwell Corporation