What kind of firewall do you recommend for Linux systems?

What kind of firewall do you recommend for Linux systems?

What kind of firewall do you recommend for Linux systems?

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All Linux systems have a built-in firewall, since firewalling is part of a Linux kernel. Thus, just using the built-in IPTables firewall is fine for most of the cases of individual host or network protection.

This was first published in October 2004