Following the publication of “Taming the Wild Netfilter” in the September 2001 issue of LJ [/article/4815], I received a number of e-mails, most asking for more detailed information on working with ...

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 ...

For those of you who have taken the plunge and upgraded from kernel 2.2.X (or even 2.0.X) to 2.4.X, congratulations. If, like a number of folks, you're running some form of firewall using either ...

Sophos researcher Nick Gregory has uncovered a dangerous security bug in Linux's netfilter application which could enable a local attacker to escalate privileges on vulnerable machines and carry out a ...

Nick Gregory, a Sophos threat researcher, found this hole recently while checking netfilter for possible security problems. Gregory explains in great detail his bug hunt, and I recommend it for those ...

Linux security developer Jenny Guanni Qu has discovered that bugs in the Linux kernel can remain hidden for more than two ...

Microsoft confirmed that it gave its seal of approval to Netfilter, a malicious driver used to distribute rootkit malware, as part of its Windows Hardware Compatibility Program (WHCP). “Since Windows ...

Bleeping Computer reported that the malicious drive that Microsoft signed is called "Netfilter," and it is a rootkit malware. Upon observing the rootkit, Microsoft found out that it communicated with ...