This describes how to set up squid auth with the /etc/passwd (actually /etc/shadow if you use it, which modern distros would)

Note: There are other ways to authenticate. Recommended reading is: http://www.squid-cache.org/Doc/FAQ/FAQ.txt

Nevertheless I have done this on a RedHat 9.0 machine in a secure environment and it works:

Do this as root:

chown root.root /usr/local/squid/bin/ncsa_auth
chmod 755 /usr/local/squid/bin/ncsa_auth
chmod u+s /usr/local/squid/bin/ncsa_auth

then change squid.conf so it reads :

auth_param basic program /usr/lib/squid/ncsa_auth /etc/shadow
auth_param basic children 5
auth_param basic realm proxy-caching
auth_param basic credentialsttl 2 hours

and add these lines:

acl passwd proxy_auth REQUIRED
http_access allow passwd

You then would create a normal user on your machine. Yes, they also get access to other things.

This should be all you have to do.

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