host files - block all apart from set IPs

[AHarvey]

Hi,

Is it possible to set hosts files to block all websites but then add in exceptions for updates, company websites etc?

Doing this at the server and router level is a massive amount of work here due to the setup.

Any other options?

 

[AHarvey]

They don't have a domain setup, 98% of them are running Win 7 Home with a couple running Ubuntu.

It's all new to me, but group policies / active directories won't work.
OPENDNS won't work without paying (which they are unlikely to do)
The Vigor3900 server doesn't seem to take Firewall settings even when set but I still couldn't set the wifi router to white/blacklist

 

[AHarvey]

I have considered that, just need to figure out if it can work. For now I've got an OpenDNS account working on the wired network, temp solution.