Bob,
blocking proxies is challenging...
the-cloak.com can easily be blocked by the free ufdbGuard (it
is a Squid redirector) because it has an invalid SSL certificate
and ufdbGuard has an option to block that.
But there are many more HTTP-based proxy sites and to block those
you need a URL database.
You can try a free or a commercial URL database (you can use either
one with ufdbGuard).
I represent a commercial URL database vendor (http://www.urlfilterdb.com).
For the sake of comparison with free URL databases:
URLfilterDB has today 29230 domains, 31796 urls and 18 regular expressions
for the URL category "proxies".
Marcus
Bob Morrison wrote:
Does anyone have any suggestions on how I can use squid to prevent
our students from by passing content filtering by using
an anonymous https: proxy server such as "the-cloak.com"?
I've tried a few techniques things with IPTables but they are becoming hard
to manage.
Any ideas are welcome
Thanks in advance for any suggestions
Bob Morrison, CNE, MCSE
