This is a external authentication module for the Squid External ACL scheme.

This module authenticates an IP address/username pair against a configuration file.
This configuration file lists the ip addresses and/or networks that a specified user or Unix user group may authenticate, two special tokens, `ALL´ and `NONE´ can be use to allow all users from determined IP address to authenticate or not.

The README file in the tarball explains how to build this module, it has been successfuly compiled on Solaris 2.x, Linux, FreeBSD and Cygwin.
Get the source code here: Download

Comments/Sugestions ? Feel free to contact me, Rodrigo Campos.