IP addresses are like opinions… everyone has one. But not every IP address is created equal. Some IP addresses are dynamic, which means they automatically change, based on router settings. Also: ...
The majority of the time, we have no idea what the IP addresses of our devices are. You don't need to know that your phone has an IP address of 192.168.1.12 on your local network in order to use it.
Brien Posey cuts through the confusion associated with allocating IP addresses to EC2 instances on the Amazon cloud, which is done automatically though users can also associate elastic IP addresses ...