Ping is a quick test of network connectivity between one host and another. Use ping to troubleshoot basic network connectivity issues. Ping allows you to send a network packet to another device in an attempt to solicit a response to confirm if a device is online or not. Use Terminal in Mac OS X to ping...

When you try to browse a website using Google Chrome, you may receive a connection refused message.   This site can’t be reached. “” refused to connect.

ERR_CONNECTION_REFUSED   This error means the website your tried accessing had either blocked, dropped, or refused your connection. This may happen when your IP address is being...

You may receive the following error in Google Chrome while trying to access a web page that is cached.   Confirm Form Resubmission

This webpage requires data that you entered in order to be properly displayed. You can send this data again, but by doing so you will repeat any action this page previously...

If you use Terminal and are often using sudo commands, you can increase the sudo password timeout so you aren’t prompted so often to re-enter your password for certain sudo commands. We will need to edit the sudoers file in /etc/. Follow the below steps.   1. Open Terminal (Applications -> Utilities -> Terminal)  2. Type...

If you need to remotely quit an application on a Mac OS X machine that uses Apple Remote Desktop, use a UNIX template command that is build into Apple Remote Desktop by default to quit any application instantly.   Note: In order to send UNIX commands through Apple Remote Desktop, your remote Mac host must have...