Need to know the IP address of your router, as assigned by your ISP, or the IP of your computer, as assigned by your router? These numbers are easy to find when you know where to look. Eric has been ...

If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network. If you plug a laptop directly into a modem with an Ethernet cable and receive a "No Valid IP ...

If your company network is having problems and you need to troubleshoot it, you also need to know some basic information about the computers on the network. Internet Protocol is the underlying ...

Breaks down the five IP address classes in order to explain how they manipulate TCP/IP protocol functionality Before two or more computers can communicate with each other, a set of rules has to be in ...

Install nmap if you don't already have it on your Linux computer. Run "sudo apt-get install nmap" on Ubuntu, or "sudo dnf ...

You can change your IP address from the network settings controls menu on a Windows PC, Mac, and even your phone.

This tip is excerpted from "Network troubleshooting and diagnostics," Chapter 4 of The Shortcut Guide to Network Management for the Mid-Market, written by Greg Shields and published by ...

In an upcoming blog I expect to write about configuring a home router, which requires logging on to it. This, in turn, requires knowing the IP address of the router. Non-techies typically don’t know ...