What is the loopback device and how do I use it? - Ask Ubuntu
Apr 9, 2017 · The loopback device is a special, virtual network interface that your computer uses to communicate with itself. It is used mainly for diagnostics and troubleshooting, and to connect to …
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 understanding this.
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 the OS, but in most …
What is the 127.0.0.2 IP address for? - Super User
Jan 7, 2021 · A datagram sent by a higher-level protocol to an address anywhere within this block loops back inside the host. This is ordinarily implemented using only 127.0.0.1/32 for loopback.
Difference between localhost and the ip address - Super User
The loopback interface is a virtual interface. It's often used to allow programs to talk to each other on the same machine. It is not a way to reference the machine IP address. 127.0.0.1 IS the IP address of …
How do you get loopback addresses other than 127.0.0.1 to work on …
A datagram sent by a higher level protocol to an address anywhere within this block should loop back inside the host. This is ordinarily implemented using only 127.0.0.1/32 for loopback, but no …
Why is there more than one loopback IP address? - Super User
Sep 30, 2015 · Why is there more than one loopback IP address? The class A network number 127 is assigned the "loopback" function, that is, a datagram sent by a higher level protocol to a network 127 …
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 to the same …
Why is my localhost not 127.0.0.1 but ::1, and what notation is that ...
This is because ping on Windows Vista and newer Windows uses IPv6 by default when available. ::1 is a shortened notation of IPv6 loopback address - equivalent of IPv4 loopback 127.0.0.1.
What does it mean to have a subnet mask /32? - Super User
Aug 20, 2019 · It could be: A webserver serving multiple sites with each site bound to a specific IPv4 address A loopback address used for testing. A network security gimmick: isolate the machine with …