[root@rhel7client1 ~]# systemctl status libvirtd
● libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2020-12-10 11:06:26 +08; 3s ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 2946 (libvirtd)
Tasks: 19 (limit: 32768)
CGroup: /system.slice/libvirtd.service
├─2946 /usr/sbin/libvirtd
├─3037 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=...
└─3038 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=...
Dec 10 11:06:28 rhel7client1 dnsmasq[3034]: listening on virbr0(#5): 192.168.122.1
Dec 10 11:06:28 rhel7client1 dnsmasq[3037]: started, version 2.76 cachesize 150
Dec 10 11:06:28 rhel7client1 dnsmasq[3037]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN DHCP DHCPv6...otify
Dec 10 11:06:28 rhel7client1 dnsmasq-dhcp[3037]: DHCP, IP range 192.168.122.2 -- 192.168.122.254, lease time 1h
Dec 10 11:06:28 rhel7client1 dnsmasq-dhcp[3037]: DHCP, sockets bound exclusively to interface virbr0
Dec 10 11:06:28 rhel7client1 dnsmasq[3037]: reading /etc/resolv.conf
Dec 10 11:06:28 rhel7client1 dnsmasq[3037]: using nameserver 192.168.1.254#53
Dec 10 11:06:28 rhel7client1 dnsmasq[3037]: read /etc/hosts - 5 addresses
Dec 10 11:06:28 rhel7client1 dnsmasq[3037]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
Dec 10 11:06:28 rhel7client1 dnsmasq-dhcp[3037]: read /var/lib/libvirt/dnsmasq/default.hostsfile
Hint: Some lines were ellipsized, use -l to show in full.
[root@rhel7client1 ~]# virsh net-list --all
Name State Autostart Persistent
----------------------------------------------------------
default active yes yes
[root@rhel7client1 ~]# virsh net-autostart --disable default
Network default unmarked as autostarted
[root@rhel7client1 ~]# virsh net-list --all
Name State Autostart Persistent
----------------------------------------------------------
default active no yes
[root@rhel7client1 ~]# virsh net-destroy default
Network default destroyed
[root@rhel7client1 ~]# virsh net-list --all
Name State Autostart Persistent
----------------------------------------------------------
default inactive no yes
[root@rhel7client1 ~]# ps -ef | grep dnsmasq
root 3269 2815 0 11:07 pts/0 00:00:00 grep --color=auto dnsmasq
Next time you restart libvirtd, it will not start dnsmasq.
[root@rhel7client1 ~]# systemctl restart libvirtd
[root@rhel7client1 ~]# systemctl status libvirtd
● libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2020-12-10 11:09:52 +08; 6s ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 3309 (libvirtd)
Tasks: 17 (limit: 32768)
CGroup: /system.slice/libvirtd.service
└─3309 /usr/sbin/libvirtd
Dec 10 11:09:52 rhel7client1 systemd[1]: Starting Virtualization daemon...
Dec 10 11:09:52 rhel7client1 systemd[1]: Started Virtualization daemon.
Dec 10 11:09:52 rhel7client1 libvirtd[3309]: 2020-12-10 03:09:52.902+0000: 3325: info : libvirt version: 4.5.0....com)
Dec 10 11:09:52 rhel7client1 libvirtd[3309]: 2020-12-10 03:09:52.902+0000: 3325: info : hostname: rhel7client1
Dec 10 11:09:52 rhel7client1 libvirtd[3309]: 2020-12-10 03:09:52.902+0000: 3325: error : virHostCPUGetTscInfo:...ctory
Dec 10 11:09:52 rhel7client1 libvirtd[3309]: 2020-12-10 03:09:52.911+0000: 3325: error : virHostCPUGetTscInfo:...ctory
Dec 10 11:09:52 rhel7client1 libvirtd[3309]: 2020-12-10 03:09:52.912+0000: 3325: error : virHostCPUGetTscInfo:...ctory
Hint: Some lines were ellipsized, use -l to show in full.
[root@rhel7client1 ~]# ps -ef | grep dnsmasq
root 3368 2815 0 11:10 pts/0 00:00:00 grep --color=auto dnsmasq
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