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NUT.CONF(5)                       NUT Manual                       NUT.CONF(5)

NAME
       nut.conf - UPS definitions for Network UPS Tools

DESCRIPTION
       This file attempts to standardize the various files being found in
       different installations, like /etc/default/nut on Debian based systems
       and /etc/sysconfig/ups on RedHat based systems.

       Distribution's init script should source this file in order to
       determine which components have to be started.

       Blank lines are ignored. Lines with a hash (#) character at the 1st
       position of the line are ignored, too. They can be used to add
       comments.

IMPORTANT NOTE
       This file is intended to be sourced by shell scripts. You MUST NOT use
       spaces around the equal sign!

       Refer to the EXAMPLE section for illustrations.

DIRECTIVES
       MODE
           Required. Recognized values are none, standalone, netserver and
           netclient. Defaults to none.

           none
               Indicates that NUT should not get started automatically,
               possibly because it is not configured or that an Integrated
               Power Management or some external system, is used to startup
               the NUT components.

           standalone
               Addresses a local only configuration, with 1 UPS protecting the
               local system. This implies to start the 3 NUT layers (driver,
               upsd and upsmon), with the related configuration files. This
               mode can also address UPS redundancy.

           netserver
               Like the standalone configuration, but also possibly need one
               or more specific LISTEN directive(s) in upsd.conf. Since this
               MODE is open to the network, a special care should be applied
               to security concerns.

           netclient
               When only upsmon is required, possibly because there are other
               hosts that are more closely attached to the UPS, the MODE
               should be set to netclient.

       UPSD_OPTIONS
           Optional. Set upsd specific options. See upsd(8) for more details.
           It is ignored when MODE above indicates that no upsd should be
           running.

       UPSMON_OPTIONS
           Optional. Set upsmon specific options. See upsmon(8) for more
           details. It is ignored when MODE above indicates that no upsmon
           should be running.

       POWEROFF_WAIT
           Optional. At the end of an emergency system halt, the upsmon master
           will signal the UPS to switch off. This may fail for a number of
           reasons. Most notably is the case that mains power returns during
           the shutdown process. See the section "Power races" in
           /usr/share/doc/nut/FAQ.txt.gz. The system will wait this long for
           the UPS to cut power, and then reboot. It should be long enough to
           exhaust the batteries, in case line power continues to be
           unavailable. On the other hand, it should not be so long that the
           system remains offline for an unreasonable amount of time if line
           power has returned. See sleep(1) for compatible time syntax. If you
           specify the time in seconds, use the "s" suffix.

           Warning

           this workaround might be dangerous under some circumstances. Please
           read http://bugs.debian.org/358696 for more details.

EXAMPLE
           # /etc/nut/nut.conf.  See nut.conf(5)

           MODE=none

           UPSD_OPTIONS=""

           UPSMON_OPTIONS=""

           # POWEROFF_WAIT=15m

INTEGRATION
       An init script, such as /etc/init.d/nut, is expected to source this
       file in order to determine which component(s) has to be started.

SEE ALSO
       ups.conf(5), upsd.conf(5), upsd.users(5), upsmon.conf(5)

INTERNET RESOURCES
       The NUT (Network UPS Tools) home page: http://www.networkupstools.org/

Network UPS Tools 2.7.3           04/17/2015                       NUT.CONF(5)