Linux is highly secure, but you should still have a firewall. You should know if your ISP's hardware (gateway) uses a firewall. One of the easiest Linux firewalls is UFW and its GUI sidekick, GUFW.

Instead of using Linux, OPNsense is powered by HardenedBSD, which is a security oriented fork of FreeBSD. The firewall distro is designed to serve as a firewall and routing platform and besides ...

Many enterprise networks require redundant HA (High Availability) infrastructure for key systems like network firewalls. This article demonstrates how you can use a combination of open-source packages ...

When I started writing this column in autumn of 2000, I had the day job of firewall engineer. I enjoyed that type of work, but I was enough of a big-picture kind of guy to be aware that every year, ...

WHEN LOOKING for an effective, inexpensive firewall solution, Linux firewalls do not often enter into the picture unless someone involved in the security planning process is a Linux guru. With the ...

It's no doubt that one of the leaders for network equipment is Cisco Systems. Newer Cisco devices are starting to use what Cisco calls its "="" operating="" system"="">, which is a customized flavor ...

In the world of the Linux operating system and open source software, the iptables firewall provides a full featured and stable packet filtering infrastructure. Commercial-grade capabilities such as ...

The Windows Subsystem for Linux 2 will bypass the Windows 10 firewall and any configured rules, raising security concerns for those who use the feature. In a blog post today, Mullvad VPN explained ...

I'd like to virtualize an opnsense firewall on my Proxmox box. My mobo's onboard NIC has two 10G ports, and I think I will need to add a third (have an Intel 1G NIC lying around somewhere here) for ...

In today's open source roundup: Six GUI firewall management applications in Linux. Plus: Linux Lite 2.2 released, and the story of how Kali Linux was created The command line is a powerful tool for ...