Hello, Is it possible to use dual authentication helpers in one squid3 instance. In my example: auth_param negotiate program /usr/lib/squid3/squid_kerb_auth auth_param negotiate children 5 auth_param negotiate keep_alive on auth_param basic program /usr/lib/squid3/ncsa_auth /etc/squid/passwd auth_param basic children 5 startup=5 idle=1 auth_param basic realm Squid auth_param basic credentialsttl 2 hours How it *should* work: If user is in WinNT domain, he is authenticated against AD in negotiate mode. If user is not in in AD, then he is prompted for password. But next, I'd like to match all users that are authenticated with basic mode in separate acl. I'm able to use some regex with that usernames - for example guest_ prefix in username. Is it possible? Regards