Bind 9 Administrator Reference Manual

Chapter 3. Nameserver Configuration
stats
Write server statistics to the statistics file.
querylog
Toggle query logging. Query logging can also be enabled by explictly directing the queries
category to a channel in the logging section of named.conf.
dumpdb
Dump the server’s caches to the dump file.
stop
Stop the server, making sure any recent changes made through dynamic update or IXFR are
first saved to the master files of the updated zones.
halt
Stop the server immediately. Recent changes made through dynamic update or IXFR are not
saved to the master files, but will be rolled forward from the journal files when the server is
restarted.
trace
Increment the servers debugging level by one.
trace level
Sets the server’s debugging level to an explicit value.
notrace
Sets the server’s debugging level to 0.
flush
Flushes the server’s cache.
status
Display status of the server.
In BIND 9.2, rndc supports all the commands of the BIND 8 ndc utility except ndc start, which
was also not supported in ndc’s channel mode.
A configuration file is required, since all communication with the server is authenticated with digital
signatures that rely on a shared secret, and there is no way to provide that secret other than with a
configuration file. The default location for the rndc configuration file is /etc/rndc.conf, but an
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