- After install Squid and configure its authentication method to use "ntlm_auth", a lot of entries "TCP_DENIED/407" were found into Squid log files, but all Active Directory authentications were made without errors.
- This configuration intends to make a single-sign-on available for Squid users.
A lot of lines as below can be found into /var/log/squid/access.log:
268234226.935 0 172.16.0.38 TCP_DENIED/407 2117 CONNECT www.redhat.com:443 - NONE/- text/html
Red Hat Enterprise Linux all versions
Squid cache proxy using ntlm_auth to authenticate in Microsoft Active Directory
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