HP-UX Reference (11i v1 00/12) - 4 File Formats (vol 8)
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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man4/!!!intro.4
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r
resolver(4) resolver(4)
options Options allows certain internal resolver variables to be modified. The syntax is
options option ...
where currently the option supported is the following:
ndots:n Set a threshold for the number of dots which must appear in a
name given to res_query (see resolver(3N)) before an initial
absolute query will be made. The default for n is ‘‘1’’, meaning
that if there are any dots in a name, the name will be tried first
as an absolute name before any search list elements are
appended to it.
The domain and search keywords are mutually exclusive. If more than one instance of these key-
words is present, the last instance overrides.
The search keyword of a system’s resolv.conf file can be overridden on a per-process basis by set-
ting the environment variable LOCALDOMAIN to a space-separated list of search domains. The options
keyword of a system’s resolv.conf file can be amended on a per-process basis by setting the environ-
ment variable RES_OPTIONS to a space separated list of resolver options as explained above under
options.
The keyword and value must appear on a single line, and the keyword (e.g.
nameserver) must start the
line. The value follows the keyword, separated by white space.
Note that the resolver routine
res_init() silently ignores errors when reading this file (see
resolver(3N)).
EXAMPLES
A typical resolv.conf file resembles the following:
domain div.inc.com
nameserver 15.19.8.119
nameserver 15.19.8.197
WARNING
In order to reduce situations that may cause connections to unintended destinations, the administrator
should carefully select which domains are put in the search list in the resolv.conf file. HP recommends that
the possible domains for the search list be limited to those domains administered within your trusted
organization. For more information on the security implications of search lists please see RFC 1535, located
in
/usr/share/doc.
AUTHOR
resolver was developed by the University of California, Berkeley.
FILES
/etc/resolv.conf Resolver configuration file.
SEE ALSO
named(1M), resolver(3N), gethostent(3N), hostname(5), RFC 1535.
HP-UX Release 11i: December 2000 − 2 − Section 4−−241
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