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nsec3hash(8)                        BIND 9                        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  sup-
              ported  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 for-
              mat, 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


COPYRIGHT

       2020, Internet Systems Consortium



9.16.4                            2020-06-10                      nsec3hash(8)

bind 9.16.4 - Generated Fri Jun 19 09:33:15 CDT 2020
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