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Top Forums UNIX for Dummies Questions & Answers home network - can you have a primary name server, or only a caching-only name server Post 47771 by RTM on Wednesday 18th of February 2004 12:13:20 PM
Old 02-18-2004
A caching-only server is not responsible for any updates - it only keeps what it learns about to give faster responses when asked (until the different expirations of the data found).

A primary server is responsible for a certain domain/s. That means all the files have to be set up (Cname, PTR, A records) and must be up for DNS to work (unless you have slave servers set up also).

Last edited by RTM; 02-18-2004 at 01:20 PM..
 

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nsquery(1)						      General Commands Manual							nsquery(1)

Name
       nsquery - name server query command

Syntax
       /usr/ucb/nsquery [ lookup ] [ host ] [ server ]

Description
       The command provides an interface to obtain host name and address information.

       If  you	specify  host,	the command obtains information about the specified host. If no host is specified, the command obtains information
       about the local host system.

       If you specify server, the command queries the BIND server that you specify. If you do not  specify  a  server,	the  command  queries  the
       default BIND server.

Options
       lookup  Retrieves the host name, Internet Protocol (IP) address, and aliases of the specified host.  If no host or server is specified, the
	       command obtains information about the local system from the default BIND server.

	       If you do specify the lookup option, the command obtains the information about  the  BIND  server  and  host  specified	(or  their
	       defaults).   If the system from which you issue the command is a BIND server, and you do not specify the lookup option, information
	       about only that server is retrieved.

Files
       Directory containing BIND server data file

       BIND server boot file

       Host database file containing name to address mapping for BIND primary
			   server

       Host database file containing address to name mapping for BIND primary
			   server

       Local host database file containing address to name mapping for BIND
			   server

       BIND server cache file

       BIND data file

See Also
       nslookup(1), resolver(3), resolver(5), named(8)
       Guide to the BIND/Hesiod Service

																	nsquery(1)
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