- Name Server Daemon (NSD) control script.
is the shell script that used to control nsd(8) and nsd-zonec(8)
is also suitable to be linked into
directory on BSD
like systems for automatic startup of
nsd(8) at boot time.
At every invokation, nsdc
will try to read the nsd.conf(5) configuration
file. An example of such configuration file is distributed with the NSD
package as nsd.conf.sample
. The config file is checked for errors
before it is used, see nsd-checkconf(8).
- Start nsd(8).
- Shut down nsd(8) by sending SIGTERM to it.
- Initiate nsd(8) name space database reload by sending
- Rebuild the nsd(8) database by invoking nsd-zonec(8) with
- Restart nsdc(8). This equals to nsdc stop && nsdc
- Check whether nsd(8) is running. Returns error message and
error code if it is not running, and no message and zero error code
- Updates all the slave zones which have allow-notify:
from localhost (127.0.0.1 or ::1) allowed. If a TSIG key is specified for
the allow-notify statement in the config file, it will be used to secure
the notify. Note that NSD keeps track of zone timeouts automatically, this
is only needed if you want to manually force updates by sending notify
messages to the localhost.
Another method you can use is to stop nsd,
delete the xfrd.state file and then start nsd again. It will try to update all
zones. This method does not require allow-notify: statements.
- Sends notify messages to all the slaves for all the zones
that have the notify: keyword in the nsd.conf file. If a
TSIG key is specified for a notify statement, it will be used to secure
the notification message to that slave server.
- Merge zone transfer changes back to zone files. It reads in
the nsd database (nsd.db) and difffile (ixfr.db), and overwrites the zone
text files if they have been updated. Running this regularly ensures that
the difffile does not grow infinitely. If any zone text files have been
changed (including those of the master zones), the nsd.db is rebuild and
nsd is reloaded.
- -c configfile
- Specify configfile to use instead of the default
- Configuration file for nsd to change default pathnames and
NSD flags. The zone names, pathnames to zone files and access
control lists are also in nsd.conf(5).
- default NSD database
- Lockfile for the NSD database access by operator
- Journal of zone transfers, the diff file containing the new
zone contents transferred.
- State for the zone transfer process of NSD. Contains
timeouts for the zones and whether zones are expired.
- the process id of the name server.
will return zero return code if operation was successful and an
error message to standard output plus a non-zero return code otherwise.
nsd(8), nsd.conf(5), nsd-checkconf(8), nsd-notify(8), nsd-patch(8), nsd-xfer(8),
was written by NLnet Labs and RIPE NCC joint team. Please see CREDITS
file in the distribution for further details.
Syntax checking of the config file is rudimentary and error messages may be
wrong. If you do a nsdc patch, whilst a (long) zone transfer is busy, the zone
transfer contents will be partially lost. After a reload, this will be
detected and the zone transfer should be restarted. The reload that happens at
the end of nsdc patch also frees up memory churn in NSD
caused by zone