Re: [Nolug] network terminology

On Mon, 2 Feb 2004, Joey Kelly wrote:

> On Monday 02 February 2004 17:56, Jeff Lee spake:
> > Loopback?? Im new to this... obviously.
>
> The "loopback" interface is 127.0.0.1, usually. Even if you don't have any
> network cards in your machine, you can still ping yourself, if you use the
> loopback interface. This is needed, because many *nix programs are
> network-aware and won't function right if there isn't some sort of network
> available to it.
>
> Pop open a shell (command prompt) and type "netstat -an " (or perhaps "netstat
> -an | grep -i listen") and you'll see that at least some of the services that
> are running on your box are listening on the loopback interface.
>
> Hope this helps (although I'm not sure where Ron was going with that... I
> haven't been following this thread).

He meant loop device, not loopback. He was talking about mounting an iso
cd image using the loop device, ie:

mount somefile.iso /mnt -o loop

Nice explanation of the loopback network device, anyway. :)

ray

-- 
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Ray DeJean  				       	 http://www.r-a-y.org
Systems Engineer                    Southeastern Louisiana University
IBM Certified Specialist  	      AIX Administration, AIX Support
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