Différences

Ci-dessous, les différences entre deux révisions de la page.

--- tech:pb_libvirt_dnsmasq_dns_port_53 [2025/11/11 20:48] – Jean-Baptiste
+++ tech:pb_libvirt_dnsmasq_dns_port_53 [2026/06/07 19:12] (Version actuelle) – modification externe 127.0.0.1
@@ Ligne 1: / Ligne 1: @@
+<!DOCTYPE markdown>
+{{tag>Brouillon Virt DNS}}
+# Pb LibVirt DNSMasq DNS port 53 (TCP/UDP)
+~~~
+$ sudo lsof -i UDP:53
+COMMAND  PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
+dnsmasq 3461 nobody    6u  IPv4  27341      0t0  UDP poste1.local:domain
+~~~
+~~~
+$ ps -p 3461 -f
+UID        PID  PPID  C STIME TTY          TIME CMD
+nobody    3461     1  0 11:00 ?        00:00:00 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
+~~~
+`/var/lib/libvirt/dnsmasq/default.conf`
+~~~ini
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+pid-file=/var/run/libvirt/network/default.pid
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254
+dhcp-no-override
+dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases
+dhcp-lease-max=253
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+~~~
+~~~bash
+virsh -c qemu:///system net-edit default
+~~~