Edit WHOIS server list in Network Utilities
Here’s a quick and relatively easy way to add new servers to the OS X Network Utilities WHOIS lookup server list.
Start and Stop OS X web server
OS X has a built in web server. For some users, especially web developers, it may come in rather handy. You can use it for locally hosting web sites (typically for development purposes), for running a local WebDAV server (which may, for instance, come in handy for local syncing of apps like OmniFocus). Here’s how to start and stop Apache on OS X.
Quickly Change Network Location from Menu Bar
Do you regularly change your network location settings, depending on what network set up you wish to use, or where you are located? Here’s the quick way to change your location, from the OS X menu bar.
Fix for OS X Internet Sharing connection issue
An easy solution to a common Mac OS X network connection sharing issue, with instructions for Android devices.
Test Internet connection speed from command line (Terminal
Test your Internet connection speed using Mac OS X Terminal command line
Apps to spoof your MAC address
Two free tools to easily spoof (change) your computer’s MAC network identification address, allowing you to use free yet time-restricted Wi-Fi networks indefinitely.