FOAK: Proxy servers

Need to restrict Internet access on a small network between certain hours
for all machines (ie, no access between 10.00-13.00 14.00-17.30) to a small
set of predetrmined sites, and open at other times... one machine set up to
be allowed permanent access to whole net.

Now, Im figuring that the best way to do this is with a configuration of
SQUID on a linux box. But I could be wrong, and Ive never configured a
SQUID proxy before.

Is there an easier way to do this, or is it a case of Squid or nothing?...
and no, i dont have access to the router. I do however have access to the
firewall...

 

You might take a look at Sun's proxy server. They have a Linux version,
available for download on their website.

http://www.sun.com/software/products/web_proxy/home_web_proxy.xml