Re: [Xen-users] Xen and name based virtual hosting?

[Javier Guerra <javier@xxxxxxxxxxx>]

On Thursday 09 February 2006 10:03 am, Winfried Kuiper wrote:
> "Name-based hosting (no need for public IP for each VPS)"
> for the software Virtuozzo.
> This is what I mean.

remember that virtuozzo (like linux vserver project) isn't a real 
virtualization; it's more like a very sophisticated chroot jail.  all the 
VPSs run on the same kernel, just hidden from each other.

i guess that it exports an API to Apache, so that after some parsing, the 
request is handed over to a worker thread, and that thread switches context 
to a different VPS.  this way, it can only see part of the filesystem.

maybe even some FTP, sshd, or other forking servers could do similar tricks.

the closest thing you could do with physical boxes, would be to have a 
front-end proxy that relays incoming connections to the real backend servers 
after some initial request parsing.

under Xen, you'd need exactly the same setup as for physical boxes.

-- 
Javier

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