Default deny.

The firewall is one of the most important security features in a computer environment. In the classic sense, a firewall is set up on an appliance, such as a computer that fulfills just a single, ...

If you see the message Security or firewall might be blocking the connection following completion of Windows Network Diagnostics to determine what’s causing internet or network connection issues on ...

If you're ignoring or have disabled Windows Firewall, you might be missing out on some good, basic protections that are easy to set up and maintain. Windows Firewall has been enabled by default since ...

Considering how much sensitive data your PC holds, you’ll want it locked down tight. Windows does a decent job out of the box, but a you can boost your security ...

The first thing you should do is click on the Restore Settings placed right below the error message and see if the issue is resolved. Sometimes, Windows revert back ...

If one was to ask a group of strangers on the street to name some of the most popular computer security tools, one of the first things that would pop into their minds is firewalls. Though other ...

I’ve been using and configuring firewalls for 10-plus years — perimeter, software, hardware, Windows, Linux, and BSD variants. Until recently, I’ve never had occasion to try or use a Juniper Networks ...