* Guido Günther [Thu, 06 Nov 2008 09:11:25 +0100]: > On Wed, Nov 05, 2008 at 05:02:52PM +0100, Adeodato Simó wrote: > > Package: libvirt-bin > > Version: 0.4.6-4 > > Severity: normal
> > From /usr/share/doc/libvirt-bin/README.Debian: > > | In order for things to work this way you need to have the recommended > > packages > > | dnsmasq, bridge-utils and iptables installed and dnsmasq must not be > > already > > | running since libvirt starts it with the above parameters. > > In my system dnsmasq was previously installed and running; nevertheless > > libvirt-bin's own dnsmasq started normally, and served well the guests, > > because it only listened in the bridge interface. > This doesn't work here. If I do > /etc/init.d/dnsmasq stop > virsh net-start default > I have: > # ps awux | grep dnsm > nobody 6327 0.0 0.0 5784 1080 ? S 08:47 0:00 dnsmasq > --keep-in-foreground --strict-order --bind-interfaces --pid-file --conf-file > --listen-address 192.168.122.1 --except-interface lo > --dhcp-leasefile=/var/lib/libvirt/dhcp-default.leases --dhcp-range > 192.168.122.2,192.168.122.254 > If I have dnsmasq already running I have: > # ps awux | grep dnsm > dnsmasq 6373 0.0 0.0 5780 696 ? S 08:48 0:00 > /usr/sbin/dnsmasq -u dnsmasq -r /var/run/dnsmasq/resolv.conf > root 6457 0.0 0.0 0 0 ? Z 08:49 0:00 [dnsmasq] > <defunct> > because (this is what libvirt basically does): > # brctl addbr virbr0 > # ifconfig virbr0 192.168.122.1 > # dnsmasq --keep-in-foreground --strict-order --bind-interfaces --pid-file > --conf-file --listen-address 192.168.122.1 --except-interface lo > --dhcp-leasefile=/var/lib/libvirt/dhcp-default.leases --dhcp-range > 192.168.122.2,192.168.122.254 > dnsmasq: failed to bind listening socket for 192.168.122.1: Address already > in use > One can partially work around this by using: > DNSMASQ_OPTS=-z > in /etc/defaults/dnsmasq but even this only works as long as you don't > restart dnsmasq. There are two possible solutions I can think of: > * Using conf-file multiple times and running only one dnsmasq instance > per defined libvirt network (we'd need to restart the daemon when new > networks come up) > * have the default dnsmasq instance ignore virbr* interface via a new > commandline switch and have this instance use -z by default. > However, I'd still be interested why this works for you. I have interface=lo in my dnsmasq.conf, plus "bind-interfaces". However you are right that stopping or restarting the main dnsmasq with the init.d scripts kills the libvirt-bin dnsmasq, because the init.d script kills all existing dnsmasq's (it assumes them to be children of the main dnsmasq, and not standalone instances). Cheers, -- Adeodato Simó dato at net.com.org.es Debian Developer adeodato at debian.org A hacker does for love what other would not do for money. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
