I've been writing a multipart series on building a transparent (bridging) firewall using Linux. Specifically, I'm using the distribution OpenWrt running on a Linksys WRT54GL broadband router, a ...

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.

I've got a Cisco ASA firewall (firewall.example.com) and an Outlook Web Access proxy in the ASA's DMZ (owa.example.com). The ASA has a publicly facing IP address that is translated to the private ...

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 ...