When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In past lessons, we discussed some important numbers used in IP networks. One was 1460, the ...

Data packets travel to and from numbered network ports associated with particular IP addresses and endpoints, using the TCP or UDP transport layer protocols. All ports are potentially at risk of ...

The internet relies on a system of addresses that treats every computer, tablet and smartphone as a distinct device, allowing all of them to communicate with each other. Because many kinds of devices ...

Your computer's firewall is a network security protocol that blocks unauthorized access from a local network or the Internet. The firewall allocates "ports" to programs that require network and ...

In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network. Some ports have been preassigned ...

Sorry if this is post is redundant, but I did some searching and didn't quite see what I'm looking for. I've inherited an existing network setup and the associated documentation is basically a Visio ...

Netstat (Network Statistics) is a command-line tool for monitoring and troubleshooting computer network issues. This tool shows you all your device’s connections in as much detail as you need. With ...

Port forwarding is a solution to a problem that many gamers know all too well: You attempt to join a friend in an online match but can’t because your connection to the gaming network is limited, ...