Once upon a time the thought of a firewalled, cordoned, and censored web was enough to send chills up the spine of any internet user. As the years have passed, however, our sentiment has softened. A ...

When I first started using Linux, back in '97, working with the built-in firewall was not something just anyone could do. In fact, it was quite complicated. Starting around 1998, if you want to manage ...

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 ...

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 ...

How to gain persistent SSH connections with the help of Mosh Your email has been sent How many times have you been taking care of some critical admin work, only to have your Secure Shell connection ...

What are you guys seeing/using for the TCP session timeouts on your firewalls? Ours default to 3600 but we have some devs that are bitching they want it much higher so they don't have to configure SSH ...

Linux firewalls can be very complicated. With the help of a GUI, firewall configuration is easier. These GUIs are easy to install and free to use. A firewall is often the heart and soul of desktop ...

Take every precaution necessary to make sure secure shell is protected. Jack Wallen shows you how to easily block specific IP addresses from gaining access to your Linux server. If you work with Linux ...

SonicWall is mailing IT admins, warning them about a high-severity vulnerability in its firewalls The bug is "susceptible to actual exploitation" it said A patch is available, as well as a few ...