On Mon, Oct 12, 2009 at 06:20:42PM +0200, Matthias Teege wrote: > Moin, > I need ip aliases on the loopback device to bind multiple instances > of the same service to its own ip. I don't think you _need_ aliases for that, very likely you can get away with 'modern' secondaries as well :) > As I understand the documentation the lo device is redirected to the > real (hidden) lo device of the vserver instance and there is no entry > in vservers/interfaces/... nope, that's wrong: first, no network devices are redirected or modified by Linux-VServer, as it uses IP isolation, which actually happens above the 'device' layer. what we do is to hide interfaces (and aliases) which do not carry IPs assigned to the guest, and also a (re)mapping of 127.a.b.c to lback (can default to 127.x.y.1) happens if selected > Is it possible to setup aliases on the lo device? sure, as it is possible to setup secondaries on lo for a guest > If so, how do I configure the aliases? the very same you do for eth0, except that you use lo instead of eth0, e.g.: --interface test=lo:10.0.0.1/24 or in the config tree with: ../interfaces/1/name=test ../interfaces/1/dev=lo ../interfaces/1/ip=10.0.0.1 ../interfaces/1/prefix=24 note: if you want to set it up yourself, just replace the dev entry with nodev (and remove the 'name') HTH, Herbert if you or your company use and like the Linux-VServer project, why not consider donating hardware or money, or getting a service contract with the developers to ensure that it will live on and continue to provide high quality free software? > Many thanks > Matthias