I have just installed squid 2.5STABLE1 on Redhat 9. I used the RPM included with the Redhat distro. Everything worked fine with the default config file. When I changed the config file to require authentication I used the instructions at this URL:
http://www.squid-cache.org/Doc/FAQ/FAQ-23.html I added a auth_param line for ncsa_auth rather than an authenticate_program line as suggested in the FAQ. It appears that the format has changed since the FAQ was updated. I then added an ACL acl users proxy_auth REQUIRED and an http_access line: http_access allow users I would expect that with this config, the browser would prompt for a username and password. It does not. It simply displays the squid message that access is denied until authenticated. I have tested the ncsa_auth program and password file on the command line and they work. I added the debug options for access controls, and then checked the cache.log file. The lines suggest that: The request ... is DENIED because it matches users thus, it appears that access is being denied because of the proxyauth acl without ever asking for authentication. Am I missing something here?