From: Christian Mayrhuber (christian.mayrhuber_at_gmx.net)
Date: Tue 28 Sep 2004 - 15:55:01 BST
On Tuesday 28 September 2004 16:06, Gilles wrote:
> Thanks for the pictorial description; I start to figure it out...
> Nevertheless, taking up from "lo as 2 doors", wouldn't it have been clearer
> have an alias for "lo", instead of a new interface "dummy0" for the sole
> of assigning it a different IP address?
> I.e. is it possible to have e.g. a "lo:dummy0" alias? But maybe "dummy0"
> yet other properties (?) that are not apparent from the above explanation.
> Vserver mailing list
lo is no real interface, lo simply repeats all network traffic to everyone
who is listening on lo, no firewall rules, no two doors, nada. Lo is a big
darn door where everything which wents out comes back in again.
The dummy interface is the only "real" virtual network interface, able to
do things like routing, firewall rules, etc.
Lo cannot do these things, it's fast, but no full fledged network interface.
In short you can't make da door with lo, you need a real network interface
card or the dummy network interface for that purpose.
-- lg, Chris
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