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NSEC3HASH(8)                         BIND9                        NSEC3HASH(8)



NAME
       nsec3hash - generate NSEC3 hash

SYNOPSIS
       nsec3hash {salt} {algorithm} {iterations} {domain}

       nsec3hash -r {algorithm} {flags} {iterations} {salt} {domain}

DESCRIPTION
       nsec3hash generates an NSEC3 hash based on a set of NSEC3 parameters.
       This can be used to check the validity of NSEC3 records in a signed
       zone.

       If this command is invoked as nsec3hash -r, it takes arguments in an
       order matching the first four fields of an NSEC3 record, followed by
       the domain name: algorithm, flags, iterations, salt, domain. This makes
       it convenient to copy and paste a portion of an NSEC3 or NSEC3PARAM
       record into a command line to confirm the correctness of an NSEC3 hash.

ARGUMENTS
       salt
           The salt provided to the hash algorithm.

       algorithm
           A number indicating the hash algorithm. Currently the only
           supported hash algorithm for NSEC3 is SHA-1, which is indicated by
           the number 1; consequently "1" is the only useful value for this
           argument.

       flags
           Provided for compatibility with NSEC3 record presentation format,
           but ignored since the flags do not affect the hash.

       iterations
           The number of additional times the hash should be performed.

       domain
           The domain name to be hashed.

SEE ALSO
       BIND 9 Administrator Reference Manual, RFC 5155.

AUTHOR
       Internet Systems Consortium, Inc.

COPYRIGHT
       Copyright (C) 2009, 2014-2019 Internet Systems Consortium, Inc. ("ISC")



ISC                               2009-03-02                      NSEC3HASH(8)