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localhostloopback

What is the purpose of the Microsoft Loopback Adapter?


Just as the question says, what is the Microsoft Loopback Adapter, and as a bonus, what scenerios as a developer would it be useful? I've noticed it's been required when installing a couple of applications to my machine, but aside from guessing, I've never have had a sturdy understanding of it's functionality.

I've read a couple of articles online, but nothing really made me "get it". While I don't need a hugely complex answer, a little explaination would be very useful.

Thanks! George


Solution

  • Well, the best answer I can give you is a few links. http://en.wikipedia.org/wiki/Loopback The key sentence here is

    "Any traffic that a computer program sends to the loopback interface is immediately received on the same interface."

    http://www.juniper.net/techpubs/software/erx/erx50x/swconfig-system-basics/html/system-mgmt15.html This may be a little more obscure if you don't know networking well.

    Basically, it's a fake network interface, useful for tests and stability. In practice, most likely something you'll never have to worry about (or you'd already know about it!)