I'm working on a Squid proxy which needs to authenticate users against an Active Directory domain; this works fine, Samba was correctly set up and Squid authenticates users via
ntlm_auth. Relevant lines in 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 acl Authenticated proxy_auth REQUIRED http_access allow Authenticated http_access deny all
Now, I need a way to allow access to users which don't have a domain account. I know I could create an "internet user" account in the domain, but this would allow access, although limited, to domain resources (file shares, etc.); I need something that will allow only Internet access.
The ideal solution would be using a local account on the proxy server, either a Linux account or a Squid one; I know Squid supports this, but I'm unable to have it use both domain authentication and Squid/local authentication if domain auth is unsuccesful.
Can this be done? How?