IPtables rules are just another config file. As such, use puppet (or equivalent) to manage them. I'm fairly indifferent to the likes of Shorewall. They're nice for creating complex rulesets on gateway ...

Ive been playing around with a newer feature of iptables to block all of the MS infected hosts from hitting my box as well as servers at work. It seems to ...

Iptables, more properly referred to as “iptables/netfilter” because of the two modules that are involved — the userspace module “iptables” and the kernel ...

When you use IPTables to create a firewall for your company's Web server, one way to prevent certain users from accessing the server is to block their IP addresses. Use the "iptables" command to ...

Linux's iptables allows powerful firewalls to be implemented at a minute fraction of the cost of many commercial offerings. Basic iptables firewalls are packet filters, which means they inspect the ...

Most of us think of iptables strictly as a firewall tool for keeping remote attackers at bay. But did you know it also can be used to keep local users in line? The experimental match extension owner ...