nsca-ng(8) The NSCA-ng Manual nsca-ng(8)NAMEnsca-ng - monitoring command acceptor
SYNOPSISnsca-ng [-FSs] [-b listen] [-C file] [-c file] [-l level] [-P file]
nsca-ng-h | -V
DESCRIPTION
The nsca-ng server makes the Nagios command file accessible from remote
systems. This allows for submitting passive check results, downtimes,
and many other commands to Nagios (or compatible monitoring solutions).
The communication with clients is TLS encrypted and authenticated using
pre-shared keys (as per RFC 4279). The nsca-ng server supports per-
client passwords and fine-grained authorization control.
The server process rereads its configuration file when it receives a
hangup signal (SIGHUP) by executing itself with the name and arguments
it was started with.
OPTIONS-b listen
Bind to the specified listen address or host name. The default
setting is “*”, which tells nsca-ng to listen on all available
interfaces. A colon (“:”) followed by a service name or port
number may be appended in order to override the default port
(5668) used by nsca-ng. If this option is specified, the listen
setting in the nsca-ng.cfg(5) file is ignored.
-C file
Submit monitoring commands into the specified file. This should
be the named pipe (FIFO) that Nagios checks for external com‐
mands to process. By default, nsca-ng submits commands into
/var/spool/nagios/nagios/rw/nagios.cmd. This option takes
precedence over the command_file setting in the nsca-ng.cfg(5)
file.
-c file
Read the configuration from the specified file instead of using
the default configuration file /usr/local/etc/nsca-ng.cfg. If a
directory is specified instead of a file, the configuration will
be read from all files with a .cfg or .conf extension in this
directory and all subdirectories. Symbolic links are followed.
-F Don't detach from the controlling terminal, and write all mes‐
sages to the standard error output (unless the -s option is
specified).
-h Print usage information to the standard output and exit.
-l level
Use the specified log level, which must be an integer value
between 0 and 5 inclusive. A value of 0 tells nsca-ng to gener‐
ate only fatal error messages, 1 adds non-fatal error messages,
2 adds warnings, 3 additionally spits out every submitted moni‐
toring command (plus startup and shutdown notices), 4 also logs
each message sent or received at the protocol level, and 5 gen‐
erates additional debug output. The default log level is 3. If
this option is specified, the log_level setting in the
nsca-ng.cfg(5) file is ignored.
-P file
During startup, try to create and lock the specified file and
write the process ID of the nsca-ng daemon into it. Bail out if
another process holds a lock on the file. By default, no such
PID file is written. This option takes precedence over the
pid_file setting in the nsca-ng.cfg(5) file.
-S Write all messages to the standard error output and (with the
exception of startup messages) to the system logger. This
option may only be specified together with the -F option.
-s Send all messages to the system logger, except for startup mes‐
sages. This is the default behaviour (unless the -F option is
specified).
-V Print version information to the standard output and exit.
FILES
/usr/local/etc/nsca-ng.cfg
The nsca-ng.cfg(5) configuration file.
SEE ALSOnsca-ng.cfg(5), send_nsca(8), send_nsca.cfg(5)
http://www.nagios.org/developerinfo/externalcommands/
AUTHOR
Holger Weiss <holger@weiss.in-berlin.de>
Version 1.2 November 6, 2013 nsca-ng(8)
