From owner-freebsd-questions  Tue Aug 18 15:30:35 1998
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Date: Tue, 18 Aug 1998 15:29:50 -0700 (PDT)
From: Doug White <dwhite@resnet.uoregon.edu>
To: Kevin <kevinw@charleston.quik.com>
cc: questions@FreeBSD.ORG
Subject: Re: Loopback...
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On Tue, 18 Aug 1998, Kevin wrote:

> I would like to start off by saying, I quit using Linux a long, long time
> ago.. FreeBSD is a far superior environment. Period.  I do have a
> question, and yes, FreeBSD is compared to Linux (just for example purposes
> only, so please don't get mad.)  In Linux, I can type in>
> 
> % telnet ppp12345.aolsucks.com
>  "ppp12345.aolsucks.com" being my current dynamic address.
> 
> <and that will let me telnet to my own machine without problem.
> 
> However, in FreeBSD, I have to type>
> 
> % telnet localhost
> 
> <for me to telnet to myself [just for testing purposes btw].
> I was told that the only way a computer to talk to itself over the
> internet, was through loopback.  Obviously, though, I could through Linux
> without loopback compiled into the kernel.  How can I get the same results
> (not having to type localhost, but my IP address instead) for FreeBSD?

The problem may be that ppp12345.aolsucks.com isn't a real address, or
your DNS isn't configured correctly.

FreeBSD does everything in it's power to keep you from wasting network
bandwidth doing local connections.  It installs a route that will redirect
connections to your local IP to the loopback IP instead, so telnetting to
yourself is identical to doing 'telnet localhost'.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major


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