The 'ping' command on most flavors of Unix has a nifty little feature that lets you select which port to ping on. It's handy when troubleshooting network applications. For example, if some wierd app.

This is senior editor Dan Moren. We take networking for granted these days, but it’s still a complicated beast. If you want to go under the hood, Apple includes a suite of tools on your Mac to help ...

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. Not only is Network Toolbox for iOS chock full of ...

I'd like a small, unobtrusive utility to "ping" a set of local and remote servers to tell if they've crashed. I need utility this to run under Mac OS X, but the servers are running Mac OS X, Linux, ...