I wondered what is the origin of the decision to make localhost's IP address 127.0.0.1. What is the "meaning" of 127? what is the "meaning" of 0.0.1?

Jun 6, 2015 · What is a loop-back address? 127.0.0.1 is a loop-back address, but what does this even mean? Please be very descriptive and give an example, as I'm having a hard-time understanding this.

The difference shown here is that there exists two routes - a general route to any device using 127.x.y.z and a very specific route to host 127.0.0.1 (which is in 127.0.0.0), both of which use the 127.0.0.1 …

The expected result is that 127.0.0.1 would take precedence over ::1 but that was not the case. As I have learned now, this can be done by adding a prefix policy instead.

Localhost or 127.0.0.1 is simply a built in 'name' for your local computer. That is, 127.0.0.1 is called a "loopback", because it is merely a pointer that points back to your machine.

Apr 6, 2016 · 127.0.0.1 is the loopback address, commonly known as localhost, which is the name that resolves to it by the local hosts file. This file is in different locations depending on the OS, but in most …

Aug 2, 2015 · What is IP address 127.0.0.1? 127.0.0.1 is the loopback Internet protocol (IP) address also referred to as the “localhost.” The address is used to establish an IP connection to the same …

This is ordinarily implemented using only 127.0.0.1/32 for loopback. As described in [RFC1122], Section 3.2.1.3, addresses within the entire 127.0.0.0/8 block do not legitimately appear on any network …

Apr 9, 2017 · Explains what a loopback device is and provides instructions on how to use it effectively on Ubuntu systems.

Aug 18, 2022 · From my point of view, your questions are too different to be grouped in a single question. To answer your main question : the purpose to use 127.0.0.1 instead of a non localhost …