INTERESSANTE
Fonte:
http://developer.apple.com/documentation/Darwin/Reference/ManPages/man1/ntlm_auth.1.html
To setup ntlm_auth for use by squid 2.5 with
group limitation in addi-tion to the above example,
the following should be added to the
_squid.conf_ file.
auth_param ntlm program ntlm_auth -helper-protocol=squid-2.5-ntlmssp \
-require-membership-of='WORKGROUP\Domain Users'
auth_param basic program ntlm_auth -helper-protocol=squid-2.5-basic \
-require-membership-of='WORKGROUP\Domain Users'