04-01-2014
There may be repeated rogue queries that are trying to return vast amounts of data. If the user is disconnected/timed out/gets bored, they may well re-issue. I would consider reading the application logs to check that the queries are indeed going to return suitable data volumes.
This was learned from prolonged painful experience eventually leading to better validation and sanity checking on the application server before the query was executed.
Robin
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LEARN ABOUT ULTRIX
nsquery
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)