Re: Loopback Aliases: 127.*
H. Peter Anvin (hpa@transmeta.com)
16 Apr 1998 09:51:36 GMT
Followup to: <199804160149.SAA00317@canopus.starshine.org>
By author: Jim Dennis <jimd@starshine.org>
In newsgroup: linux.dev.kernel
>
> At my suggestion my wife, Heather, configured one of our Apache
> servers to virtual host on several addresses in the 127.0.0.x range.
> On our LAN we configure all the systems to use a squid proxy at
> betelgeuse.starshine.org (disconnected system don't bother trying to
> see it). All of these virtual hosts are on betel (our short name for
> it).
>
[....]
>
> The odd thing is that she didn't add any "subinterfaces" or "IP aliases"
> to betel's configuration. I would have expected that she'd have to
> use commands like 'ifconfig lo:1 127.0.0.2 up' to make this work. However,
> she didn't.
>
> Is this a feature of the 'lo' interface/driver? If so, that's nice.
> If it's a bug and will be fixed, I have to know so I can "fix" my
> configuration before I forget.
>
All 127.x.x.x addresses are loopback. It is part of the definition
for IP.
-hpa
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