loopback

[pao_pao]

can someone explain to me what is loopback?

 

[pao_pao]

When loopback is down, does it affect the network connection?

 

[havock]

Loopback is an interface that allows a networked device that allows it to talk to itself.

http://en.wikipedia.org/wiki/Loopback

useful for things like using "client software" to access a server located on the same machine.

basically if you open a web browser on a webserver and type in 127.0.0.1 or localhost it accesses the page on the server w/o traveling the entire network

 

[superdave1984]

If your loopback is down you can't communicate with the network. It means your network adapter isn't working. If you ping 127.0.0.1 and get no replies, you have a problem.