iptables rules to ask for password for new connections

chingyenccy · 02-25-2005, 04:27 AM

Hi,
I'm writing an iptables ruleset and I wonder if there's any rules that will prompt for password if a user is to establish a new connection. I'm trying to build a modbus firewall, therefore I would like to have only 'established connections' to pass through the firewall, while 'new connections' will be prompt for password. Is it possible?
I hope someone can help! Thanks..

peter_robb · 02-25-2005, 02:50 PM

What kind of services do you want to restrict to a password?

Usually it's the job of a proxy to do that, and you can sure use iptables to redirect to one for NEW connections..