You may need to monitor, or mirror, a port on an Ethernet switch to debug a data protocol, check for inappropriate use of your network or resolve a security breach. Using a monitor port on a network ...

If a tree falls in the woods and no one is there to hear it, does it make a sound? This the classic query designed to place your mind into the Zen-like state known as the silent mind. Whether or not ...

Automated network monitoring involves scanning for device component failures and examining traffic patterns. Learn how to lighten the load of your network management responsibilities. Network device ...

In the cybersecurity world, testing for the existence of exploitable vulnerabilities isn’t always an exact science. Checking for open ports (CIS Control 9 - Limitation and Control of Network Ports, ...

In this series of articles, I am looking at how to monitor my home/home lab LAN. In my first article, I probed my network to see what devices were on it and where they were located. In my next article ...

The Raspberry Pi is an amazing little inexpensive Linux-based computer. It has been remarkably successful and there have been over Raspberry Pi systems sold. The Raspberry Pi can also be a useful tool ...

I have two Cisco Catalyst switches in the 2900 series. I want to monitor all of the traffic on the two switches. Of course the IDS sensor I want to use only has one port and can't be connected to both ...

Portmaster isn’t just a cross-platform network monitor — it’s also a very powerful security tool that can help to lock down your desktops and block things like ads, trackers and malware. I’ve been ...