First, I am not sure if Varnish can be used as web-cache to speedup internet in small offices.
We have an office with 20 systems around and we frequently browse same set of websites.
I setup squid and it worked fine for sometime. But I couldn't get to cache youtube videos which was my main aim.
I came recently across Varnish while playing with nginx but I see it is being used as web-accelerator for backend server.
Can we use Varnish instead of nginx for web-cache in transparent way? I mean to say that people in my office will not need to configure proxy on their machine.