Re: [libvirt] Making DHCP leases available to local DNS server through dnsmasq

I meant hostname/guest name. There is no static DNS in /etc/hosts for the VMs and no specific records in DNS server. Can you see the guest in: /var/lib/libvirt/dnsmasq/virbr0.{macs,status} # cat /var/lib/libvirt/dnsmasq/virbr0.{macs,status} [ { "domain": "KVM-Ubuntu-GNS3-Server-17.04", "macs": [ "52:54:00:03:9f:9f" ] } ] [ { "ip-address": "192.168.122.124", "mac-address": "52:54:00:03:9f:9f", "hostname": "KVM-Ubuntu-GNS3-Server-17", "expiry-time": 1497617966 } ] You need to restart the network after you've set up the NSS module. I've rebooted the system. I am using something along the lines of: server=/virt/192.168.213.1 server=/213.168.192.in-addr.arpa/192.168.213.1/ I have no /etc/dnsmasq.d/libvirt.conf, but in */etc/dnsmasq.conf*: *local=/actionmystique.net/ <http://actionmystique.net/>* I thought this would add that domain name to the answers from whatever is found in DHCP leases. The comment says: # Add local-only domains here, queries in these domains are answered # from /etc/hosts or DHCP only. Since the first libvirt-nss module ("libvirt" plugin) looks into DHCP server leases, the above setting should work, shouldn't it? Actually, I've just realized that there is a discrepancy between the libvirt VM guest name and the Ubuntu hostname, where the trailing ".04" has been automatically removed. So, the* hostname (not guest name) is accessible*: # ping KVM-Ubuntu-GNS3-Server-17 PING KVM-Ubuntu-GNS3-Server-17 (192.168.122.124) 56(84) bytes of data. 64 bytes from KVM-Ubuntu-GNS3-Server-17 (192.168.122.124): icmp_seq=1 ttl=64 time=0.191 ms 64 bytes from KVM-Ubuntu-GNS3-Server-17 (192.168.122.124): icmp_seq=2 ttl=64 time=0.302 ms ... *but not he FQDN*: # ping KVM-Ubuntu-GNS3-Server-17.actionmystique.net ping: KVM-Ubuntu-GNS3-Server-17.actionmystique.net: Name or service not known On Fri, Jun 16, 2017 at 1:39 PM, Martin Kletzander <mkletzan(a)redhat.comwrote: > On Sat, Jun 10, 2017 at 08:53:16PM +0200, jean-christophe manciot wrote: >> Hello everyone, >>> I have multiple virtual networks defined on my Server: >> # virsh net-list --all >> Name State Autostart Persistent >> ---------------------------------------------------------- >> default active yes yes >> ... >> virtual-mgt-5 active yes yes >> ... >>> I am using something along the lines of: > server=/virt/192.168.213.1 > server=/213.168.192.in-addr.arpa/192.168.213.1/ > And all guests have .virt in their hostname, so I'm at least able to use > that. That way guests are available by their names in the .virt > domain. You should be able to do that with your domain name as well. > Let me know if that works for you or not. > Have a nice day, > Martin -- Jean-Christophe