Windows Firewall acts as the first layer of defense against malware, so it is always advisable to keep it turned ‘ON’ – unless you use third-party firewall software. If, for some unknown reason if you ...

The OS X firewall is a useful and important security feature, and we recommend people enable as many of its features as possible to help ward off the possibility of attacks, especially when connected ...

The Windows Firewall included in WinXP SP2 usually works fine...but when it doesn't, troubleshooting can be a real pain. Microsoft offers a troubleshooting document in its Knowledge Base; here are ...

I’m having sort of a strange problem that I hope you can help with. I have 4 computers connected to an 8-port switch and a broadband router. Each of these computers is capable of accessing the ...

Reports of problems with Apple's latest Security Update are scattered and lack consistency, but we are scrambling to organize the main problems and target some potential solutions. Again, as stated ...

Networking pro Greg Schaffer was stumped when he couldn't solve a connectivity problem and initially told his client it wasn't a networking issue. Then he checked again. Several years ago, a new ...

In my googling I have not found anything that really helps me with this. I know that, in theory, show log firewall name <ruleset_name> should show me log messages for a firewall rule set. When this ...

The Windows Firewall that comes with Windows XP Service Pack 2 usually works fine, but when it doesn't, troubleshooting can be a real pain. Microsoft offers a ...