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  1. networking - Why is localhost IP 127.0.0.1? - Super User

    Aug 29, 2009 · 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?

  2. windows 7 - How does localhost 127.0.0.1 work? - Super User

    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.

  3. What's a loopback-address? I.e. 127.0.0.1 - Super User

    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 …

  4. What's the difference between 127.0.0.1 and 127.0.0.0

    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 …

  5. Why is my localhost not 127.0.0.1 but ::1, and what notation is that?

    Not only is that IPv6, but there is nothing special or hard-coded about localhost; it is specified in the HOSTS file. It is 127.0.0.1 by default, but you can change it to whatever you want, or …

  6. What is difference between localhost address 127.0.0.1 and 127.0.1.1

    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 …

  7. What's the difference between 127.0.0.1 and 0.0.0.0?

    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 …

  8. What is the 127.0.0.2 IP address for? - Super User

    Jan 7, 2021 · 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 …

  9. What is the loopback device and how do I use it? - Ask Ubuntu

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

  10. What is the difference between 127.0.0.1 and non-localhost …

    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 …