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 ...

Last week seems to have been a firewall issue week for me. I worked on incidents in two large networks where problems on the LAN managed to bring down firewalls at the edge of the network. Firewalls ...

You’ve just been given the task of solving a network problem that has been unresolved for many months. Where do you start? Is it a solvable problem or is it just the way the network works? Maybe ...

Network problems may be physical, electrical or software-related. For that reason, troubleshooting networks can be challenging. Fortunately, computers come with hardware and software that can help you ...

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 the first installment of this column, I discussed some of the key criteria for selecting the appropriate firewall for your organization. Here are a few more features you should consider: Most ...