NETWORKMANAGER(8) Network management daemons NETWORKMANAGER(8)NAMENetworkManager - network management daemon
SYNOPSISNetworkManager [OPTIONS...]
DESCRIPTION
The NetworkManager daemon attempts to make networking configuration and
operation as painless and automatic as possible by managing the primary
network connection and other network interfaces, like Ethernet, WiFi,
and Mobile Broadband devices. NetworkManager will connect any network
device when a connection for that device becomes available, unless that
behavior is disabled. Information about networking is exported via a
D-Bus interface to any interested application, providing a rich API
with which to inspect and control network settings and operation.
NetworkManager will execute scripts in the
/etc/NetworkManager/dispatcher.d directory in alphabetical order in
response to network events. Each script should be a regular executable
file, owned by root. Furthermore, it must not be writable by group or
other, and not setuid.
Each script receives two arguments, the first being the interface name
of the device just activated, and second an action.
up
The interface has been activated. The environment contains more
information about the interface; CONNECTION_UUID contains the UUID
of the connection. Other variables are IP4_ADDRESS_N where N is a
number from 0 to (# IPv4 addresses \- 1), in the format
"address/prefix gateway". IP4_NUM_ADDRESSES contains the number
addresses the script may expect. IP4_NAMESERVERS contains a
space-separated list of the DNS servers, and IP4_DOMAINS contains a
space-separated list of the search domains. Routes use the format
IP4_ROUTE_N where N is a number from 0 to (# IPv4 routes \- 1), in
the format "address/prefix next-hop metric", and IP4_NUM_ROUTES
contains the number of routes to expect. If the connection used
DHCP for address configuration, the received DHCP configuration is
passed in the environment using standard DHCP option names,
prefixed with "DHCP4_", like "DHCP4_HOST_NAME=foobar".
down
The interface has been deactivated.
vpn-up
A VPN connection has been activated. The environment contains the
connection UUID in the variable CONNECTION_UUID.
vpn-down
A VPN connection has been deactivated.
hostname
The system hostname has been updated. Use gethostname(2) to
retrieve it.
dhcp4-change
The DHCPv4 lease has changed (renewed, rebound, etc).
dhcp6-change
The DHCPv6 lease has changed (renewed, rebound, etc).
OPTIONS
The following options are understood:
--version | -V
Print the NetworkManager software version and exit.
--help | -h
Print NetworkManager's available options and exit.
--no-daemon | -n
Do not daemonize.
--debug | -d
Do not daemonize, and direct log output to the controlling terminal
in addition to syslog.
--pid-file | -p
Specify location of a PID file. The PID file is used for storing
PID of the running proccess and prevents running multiple
instances.
--state-file
Specify file for storing state of the NetworkManager persistently.
If not specified, the default value of
/var/lib/NetworkManager/NetworkManager.state is used.
--config
Specify configuration file to set up various settings for
NetworkManager. If not specified, the default value of
/etc/NetworkManager/NetworkManager.conf is used with a fallback to
the older 'nm\-system\-settings.conf' if located in the same
directory. See NetworkManager.conf(5) for more information on
configuration file.
--plugins
List plugins used to manage system-wide connection settings. This
list has preference over plugins specified in the configuration
file. Currently supported plugins are: keyfile, ifcfg-rh,
ifcfg-suse, ifupdown.
--log-level
Sets how much information NetworkManager sends to the log
destination (usually syslog's "daemon" facility). By default, only
informational, warning, and error messages are logged.
--log-domains
A comma-separated list specifying which operations are logged to
the log destination (usually syslog). By default, most domains are
logging-enabled.
DEBUGGING
The following environment variables are supported to help debugging.
When used in conjunction with the --no-daemon option (thus echoing PPP
and DHCP helper output to stdout) these can quickly help pinpoint the
source of connection issues. Also see the --log-level and --log-domains
to enable debug logging inside NetworkManager itself.
NM_PPP_DEBUG: When set to anything, causes NetworkManager to turn on
PPP debugging in pppd, which logs all PPP and PPTP frames and
client/server exchanges.
SEE ALSONetworkManager.conf(5), nmcli(1), nmcli-examples(5), nm-online(1), nm-
settings(5), nm-applet(1), nm-connection-editor(1)NetworkManager 0.9.10NETWORKMANAGER(8)
