Whats the legal status of Squid?
From the Squid distribution, README file: This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Squid is copyrighted squid-copyright.txt by the University of California San Diego. Squid uses some code developed by others squid-credits.txt . Squid is Free Software http://www.gnu.org/philosophy/free-sw.html . Squid is licensed under the terms of the GNU General Public License http://www.gnu.org/copyleft/gpl.html .