openstack dnsmasq

killall dnsmasq

systemctl restart openstack-nova-compute

/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper

原文：http://www.cnblogs.com/ruiy/p/5553950.html