I have Debian "Sid" running on my Linux router at home. Currently, IPTables is acting as a NAT, but now I want to forward port 6990 on the router to port 6990 on a Desktop PC that is running an FTP ...

Okay, here's something I'm sure someone can help me out with:<br>Situation:<br>We have a remote machine. It has to FTP files over to an internal machine here, but due to some security constraints, we ...

Topic ===== security hole in iptables (2.4.x kernels) Problem Description ===== A vulnerability in iptables "RELATED" connection tracking has been discovered. When using iptables to allow FTP "RELATED ...

Mastering iptables could take a while, but if you have a few rules to cover the basic security needs, you'll be well on your way to protecting your Linux system. Jack Wallen explains some key rules to ...

The Linux kernel includes some of the most powerful and flexible firewall code in any general-purpose operating system. This code is called Netfilter, though most of us refer to it by the name of its ...

When deciding on a firewall implementation, most Unix-savvy administrators have usually chosen to use ipfilter on OpenBSD for their combination of capabilities and stability, as the capabilities of ...