loopback interface

The network loopback interface (<span><span>lo</span></span>) 1. What is it? <span>lo</span> is a virtual network interface that is automatically created and managed by the operating system kernel. Its IP address is always <span>127.0.0.1</span> (IPv4) and <span>::1</span> (IPv6), which is known as the loopback address localhost. Any IP packets sent to this address range will be directly … Read more