I'm implementing a "Windows clients, Linux servers" kind of network. Some users may login at different machines, therefore, ip level is not enough. I wonder if it's possible to control the access at the "domain users" level instead of network or ip level. I could implement some proxies, but each client machine had to be configured and that would mean extra work. IPtables can filter at the user level, but only with local users. Is there a way to configure iptables and kerberos working together or something like that? Is this doable with PAM? I have read that SAMBA authenticated gateway HOWTO, but it doesn't look very reliable. Well, so basically what i want, is a firewall similar to a ISA Server firewall
Any ideas about this would be apreciated, thanks in advance.