I have to set up a "secure" network for my boss. For now, I have a ADSL router linked to a switch. All users are connected to this switch. Security is obviously bad. I want to put a server between the ADSL router and the switch. This server will, I think, be a bridge. But it has to be a firewall, a proxy and a web content filter. There are about 20 users (who use a lot the Internet for surfing no downloading).
What kind of hardware should I use for the server ? Of course, I need two NICs.
- How many RAM would be enough ?
- Is the bridge solution a good one in term of performance ? (perhaps NAT, or static route ...)
- Should I use Debian or NetBSD ? I read that NetBSD is good for that kind of job
- SHould th server be the router for the lan or I keep the ADSL router ?
Thank you for your answers.
PS : Sorry for my poor english