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VIRTNETWORKD(8) Virtualization Support VIRTNETWORKD(8)

virtnetworkd - libvirt virtual network management daemon

virtnetworkd [OPTION]...

The virtnetworkd program is a server side daemon component of the libvirt virtualization management system.

It is one of a collection of modular daemons that replace functionality previously provided by the monolithic libvirtd daemon.

This daemon runs on virtualization hosts to provide management for virtual networks.

The virtnetworkd daemon only listens for requests on a local Unix domain socket. Remote off-host access and backwards compatibility with legacy clients expecting libvirtd is provided by the virtproxy daemon.

Restarting virtnetworkd does not interrupt running guests. Guests continue to operate and changes in their state will generally be picked up automatically during startup. None the less it is recommended to avoid restarting with running guests whenever practical.

The virtnetworkd daemon is capable of starting in two modes.

In the traditional mode, it will create and listen on UNIX sockets itself.

In socket activation mode, it will rely on systemd to create and listen on the UNIX sockets and pass them as pre-opened file descriptors. In this mode most of the socket related config options in /etc/libvirt/virtnetworkd.conf will no longer have any effect.

Socket activation mode is generally the default when running on a host OS that uses systemd. To revert to the traditional mode, all the socket unit files must be masked:

$ systemctl mask virtnetworkd.socket virtnetworkd-ro.socket \
   virtnetworkd-admin.socket


-h, --help

Display command line help usage then exit.

-d, --daemon

Run as a daemon & write PID file.

-f, --config *FILE*

Use this configuration file, overriding the default value.

-p, --pid-file *FILE*

Use this name for the PID file, overriding the default value.

-t, --timeout *SECONDS*

Exit after timeout period (in seconds), provided there are neither any client connections nor any running domains.

-v, --verbose

Enable output of verbose messages.

--version

Display version information then exit.

On receipt of SIGHUP virtnetworkd will reload its configuration.

/usr/local/etc/libvirt/virtnetworkd.conf

The default configuration file used by virtnetworkd, unless overridden on the command line using the -f | --config option.

  • /var/run/libvirt/virtnetworkd-sock
  • /var/run/libvirt/virtnetworkd-sock-ro
  • /var/run/libvirt/virtnetworkd-admin-sock

The sockets virtnetworkd will use.

The TLS Server private key virtnetworkd will use.

/var/run/virtnetworkd.pid

The PID file to use, unless overridden by the -p | --pid-file option.

$XDG_CONFIG_HOME/libvirt/virtnetworkd.conf

The default configuration file used by virtnetworkd, unless overridden on the command line using the -f``|--config`` option.

  • $XDG_RUNTIME_DIR/libvirt/virtnetworkd-sock
  • $XDG_RUNTIME_DIR/libvirt/virtnetworkd-admin-sock

The sockets virtnetworkd will use.

$XDG_RUNTIME_DIR/libvirt/virtnetworkd.pid

The PID file to use, unless overridden by the -p``|--pid-file`` option.

If $XDG_CONFIG_HOME is not set in your environment, virtnetworkd will use $HOME/.config

If $XDG_RUNTIME_DIR is not set in your environment, virtnetworkd will use $HOME/.cache

To retrieve the version of virtnetworkd:

# virtnetworkd --version
virtnetworkd (libvirt) 8.1.0


To start virtnetworkd, instructing it to daemonize and create a PID file:

# virtnetworkd -d
# ls -la /var/run/virtnetworkd.pid
-rw-r--r-- 1 root root 6 Jul  9 02:40 /var/run/virtnetworkd.pid


Please report all bugs you discover. This should be done via either:
1.
the mailing list

https://libvirt.org/contact.html

2.
the bug tracker

https://libvirt.org/bugs.html


Alternatively, you may report bugs to your software distributor / vendor.

Please refer to the AUTHORS file distributed with libvirt.

Copyright (C) 2006-2020 Red Hat, Inc., and the authors listed in the libvirt AUTHORS file.

virtnetworkd is distributed under the terms of the GNU LGPL v2.1+. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE

virsh(1), libvirtd(8), https://www.libvirt.org/daemons.html, https://www.libvirt.org/drvnetwork.html

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