Daniel P. Berrange píše v Pá 15. 06. 2012 v 11:54 +0100:
> On Fri, Jun 15, 2012 at 12:44:04PM +0200, Gerd Hoffmann wrote:
> > On 06/15/12 12:00, Daniel P. Berrange wrote:
> > > On Fri, Jun 15, 2012 at 11:48:28AM +0200, Gerd Hoffmann wrote:
> > >> Hi,
> > >>
> > >>> * new spice-server feature: add option to bind to a selected interface
> > >>> regardless of its addresses
> > >>
> > >> How does that work?
> > >
> > > I presume the client app would request listen=eth0, and the QEMU
> > > would have to call getifaddrs() to determine what IP addresses
> > > currently correspond to eth0.
> >
> > Ah, so there isn't a direct way I'm not aware of, you still bind to a
> > specific ip address (or multiple), just specified in a different way ;)
> >
> > Note that supporting this isn't going to work with a single listening
> > socket. Having ipv6 sockets accept ipv4 connects too works for wildcard
> > sockets only. If you want listening on all ip{v4,v6} addresses of an
> > interface you'll need a listening socket for each.
>
> Yeah, I'm almost certain you'll need to have multiple listening sockets
> for this to work
>
> Daniel
Well, I've checked what my local dnsmasq does and it's doing precisely
what you say:
tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 29426/dnsmasq
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN 29426/dnsmasq
tcp 0 0 ::1:53 :::* LISTEN 29426/dnsmasq
tcp 0 0 fe80::4c03:d0ff:fec2:aa7:53 :::* LISTEN 29426/dnsmasq
In other words, dual-socket won't make dual-stack for selected interface
possible without implementing
https://bugzilla.redhat.com/show_bug.cgi?id=787256
anyway. :(
David
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David Jaša, RHCE
SPICE QE based in Brno
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