On Thursday 06 April 2006 09:09 am, Benoît des Ligneris wrote:
> Chuck a écrit :
> > tuesday, i ran into a major emergency with a hardware failure on our email
> > machine which uses 130 ip addresses. my only choice was to move it to the
> > host side of our dell vserver host. this is presently causing an extreme
> > amount of port clashes as the email server wants to grab every ip on port
> > for webmail rather than stick to a single /24 and i so far have not found
> > way to bind it to only a single network.
> If you are using a vserver kernel, why not use chbind to bind the server
> to the IP you want to use ?
interesting utility... never knew it existed... i would have to bind to eth2
and all 130+ ip addys on it though and exclude one... one ip in that same
netblock using the same interface is a vserver guest that is a different
email server. from what i gather this will lock down all ip addys on that
interface... unless it is used first, then an ip is added by a guest using a
later startup... with my luck it would go ahead and grab that one too :)
> > putting it into a guest would cure all of this i believe... i did not do
> > initially due to the 16 ip limitations...
> Well, this can easily be changed with a patch to the vserver patch
> however there will be a small performance impact.
will have to find this patch and review it... if patched is this performance
impact across the board on all guests whether using 1 or 100 ips? or is it
restricted to those with >16 ips?
> > is that limitation released yet? or is there code available which works
> > enough to stuff it into a production environment? i have had to shut down
> > vservers just to get mail to run :(
> We already deploy it in a production environment for at least one year
> now (for hosting, 64 IPs).
> > the only other option i have is to buy a replacement server and put mail
> > that which i prefer not to do as we are targeting a large new server to
> > all the vservers onto which would leave the dell to run email as a stand
> > alone machine but this wont happen for a good month yet as once the server
> > comes in i have to recompile every virtual to live on amd64/opteron arch
> > move them over (quite time consuming considering i am moving 40+ vservers
> > a p3 intel environment)..
> Benoit des Ligneris Ph. D.
> President de Revolution Linux http://www.revolutionlinux.com/
> OSCAR http://oscar.openclustergroup.org/
> EduLinux http://www.edulinux.org/
> Toutes les opinions et les prises de position exprimées dans ce courriel
> sont celles de son auteur et ne répresentent pas nécessairement celles
> de Révolution Linux
> Any views and opinions expressed in this email are solely those of the
> author and do not necessarily represent those of Revolution Linux
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-- Chuck "...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. " The Book of John, chapter 1, page 1, and end of book _______________________________________________ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserverReceived on Thu Apr 6 15:01:32 2006