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Name
rndc - name server control utility
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Subcommands
rndc supports the following subcommands:
• flush: flushes all of the server’s caches.
• flushname name: flushes the given name from the server’s cache(s).
• querylog: toggles named messages in /var/log/messages.
• retransfer zone: re-transfers a single zone without checking serial number.
• status: displays status of the server.
• recursing: Generates a list of queries named is currently recursing
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on (queries that are waiting for answers from the server). When the command
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is executed the output is dumped in a newly created file called named.
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recursing in the /infoblox/var/named_conf/ directory.
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Synopsis
rndc [-b source-address] [-k key-file] [-s server]
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[-p port] [-V] {command}
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Description
rndc controls the operation of a name server. It supersedes the
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ndc utility that was provided in old BIND releases. If rndc is invoked
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with no command line options or arguments, it prints a short summary of
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the supported commands and the available options and their arguments.
rndc communicates with the name server over a TCP connection,
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sending commands authenticated with digital signatures. In the current
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versions of rndc and named, the only supported authentication algorithm
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is HMAC-MD5, which uses a shared secret on each end of the connection.
This provides TSIG-style authentication for the command request and
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the name server’s response. All commands sent over the channel must
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be signed by a key_id known to the server.
rndc reads a configuration file to determine how to contact the
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name server and decide what algorithm and key it should use.
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Options
-b source-address
Use source-address as the source address for the connection to the
serverthe server. Multiple instances are permitted to allow setting of both
the both the IPv4 and IPv6 source addresses.
-k key-file
Use key-file as the key file instead of the default, /etc/rndc.key.
The The key in /etc/rndc.key will be used to authenticate commands sent
to sent to the server if the config-file does not exist.
-s server
server is the name or address of the server which matches a server
statement server statement in the configuration file for rndc. If no server is
supplied is supplied on the command line, the host named by the default-server
clause server clause in the options statement of the rndc configuration file will
be will be used.
-p port
Send commands to TCP port port instead of BIND 9’s default control
channel control channel port, 953.
-V
Enable verbose logging.
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Restrictions in NIOS Expert Mode
–c and -y are not allowed due to the “no file” access policy.
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rndc only talks to the internal DNS server.
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Limitations
rndc does not yet support all the commands of the BIND 8 ndc utility.
There is currently no way to provide the shared secret for a key_
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id without using the configuration file.
Several error messages could be clearer.
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See Also
rndc.conf(5), rndc-confgen(8), named(8), named.conf(5), ndc(8), BIND
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9 Administrator Reference Manual.
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Author
Internet Systems Consortium
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Copyright
Copyright © 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
Copyright © 2000, 2001 Internet Software Consortium.