You might look into to intercepting ports 80 and 443 (outbound) at your firewall and routing traffic through the proxy that way. This is often called a "forced", "inline" or "transparent" proxy, and is much harder to bypass, as it is not done on the user's computer. (Cf. https://en.wikipedia.org/wiki/Proxy_server#Transparent_proxy)
But clever students can probably still find a way around it using Tor or similar. Paul Kosinski P.S. Trying to prevent people from visiting Websites they want to visit has a long history of failures. On Thu, 28 Apr 2016 10:32:50 -0400 Ross Pendleton <rpendle...@perkinsschools.org> wrote: > Greetings. > > I just learned yesterday that one tiny settings change in Firefox can > permit our filtered students a complete bypass of all our settings. > This could be really bad for our school district. > > I was directed to research Firefox ESR. I’m hoping someone can point > me in the best direction to force Firefox to use the system proxy > settings and stay locked that way. I can handle the distribution, if > someone would please set me with a starting point to configure the > app to keep our users on the proxy we set the laptops to. > > MacBook Airs, systems 10.10 - 10.11. JAMF Software Casper Suite for > device management. > > Thank you very much for any assistance. > > R Pendleton > _______________________________________________ > Enterprise mailing list > Enterprise@mozilla.org > https://mail.mozilla.org/listinfo/enterprise > > To unsubscribe from this list, please visit > https://mail.mozilla.org/listinfo/enterprise or send an email to > enterprise-requ...@mozilla.org with a subject of "unsubscribe" _______________________________________________ Enterprise mailing list Enterprise@mozilla.org https://mail.mozilla.org/listinfo/enterprise To unsubscribe from this list, please visit https://mail.mozilla.org/listinfo/enterprise or send an email to enterprise-requ...@mozilla.org with a subject of "unsubscribe"
