From containers and VPNs to VLANs and firewalls, Linux networking has become the backbone of modern home labs and servers. But no matter how advanced the setup, the same core commands keep showing up ...

Ping a website or another online server to test your computer's connection to that computer and measure the time it takes for data packets to travel there and back. By default, the ping command sends ...

The arping command can ping local systems to find out whether they are responsive, and with the help of scripts, can ping specific IP-address ranges. The arping command is one of the lesser known ...

There are days when your connection breaks, not because the internet is down, but because your computer is confused. Wrong IP, no IP, stuck on an old network, or just refusing to pick up a new one.