Firewalls are computers dedicated to filtering particular kinds of network traffic between two networks. They are usually employed to protect a LAN from the rest of the Internet. Securing every box on ...

In my googling I have not found anything that really helps me with this. I know that, in theory, show log firewall name <ruleset_name> should show me log messages for a firewall rule set. When this ...

Getting to grips with the new logging system. It seems that the firewall no longer logs. Searching for possible strings with Console.app and log(1) yields nothing. There are two empty files in ...

Last month we used Firewall Builder to create a set of reusable objects for iptables policies. In this month's column, I show you how to use Firewall Builder to create two such rule sets: one for a ...