NAME

       dnssec-verify - DNSSEC zone verification tool

SYNOPSIS

       dnssec-verify  [-c  class]  [-E engine] [-I input-format] [-o origin] [-q] [-v level] [-V]
       [-x] [-z] {zonefile}

DESCRIPTION

       dnssec-verify verifies that a zone is fully signed for each algorithm found in the  DNSKEY
       RRset for the zone, and that the NSEC/NSEC3 chains are complete.

OPTIONS

       -c class
              This option specifies the DNS class of the zone.

       -E engine
              This option specifies the cryptographic hardware to use, when applicable.

              When  BIND  9  is  built  with  OpenSSL, this needs to be set to the OpenSSL engine
              identifier that drives the cryptographic accelerator  or  hardware  service  module
              (usually pkcs11).

       -I input-format
              This  option sets the format of the input zone file. Possible formats are text (the
              default) and raw. This option is primarily intended to be used for  dynamic  signed
              zones,  so that the dumped zone file in a non-text format containing updates can be
              verified independently.  This option is not useful for non-dynamic zones.

       -o origin
              This option indicates the zone origin. If not specified, the name of the zone  file
              is assumed to be the origin.

       -v level
              This option sets the debugging level.

       -V     This option prints version information.

       -q     This  option  sets  quiet mode, which suppresses output.  Without this option, when
              dnssec-verify is run it prints to standard output the number of keys  in  use,  the
              algorithms  used  to  verify  the  zone  was  signed  correctly,  and  other status
              information.  With this option, all non-error output is suppressed,  and  only  the
              exit code indicates success.

       -x     This  option  verifies  only that the DNSKEY RRset is signed with key-signing keys.
              Without this flag, it is assumed that the DNSKEY RRset  is  signed  by  all  active
              keys.  When  this flag is set, it is not an error if the DNSKEY RRset is not signed
              by zone-signing keys. This corresponds to the -x option in dnssec-signzone.

       -z     This option indicates that the  KSK  flag  on  the  keys  should  be  ignored  when
              determining  whether the zone is correctly signed. Without this flag, it is assumed
              that there is a non-revoked, self-signed DNSKEY with the  KSK  flag  set  for  each
              algorithm,  and  that  RRsets  other  than DNSKEY RRset are signed with a different
              DNSKEY without the KSK flag set.

              With this flag set, BIND 9 only requires that for each algorithm, there be at least
              one  non-revoked,  self-signed  DNSKEY,  regardless of the KSK flag state, and that
              other RRsets be signed by a non-revoked key for the same  algorithm  that  includes
              the  self-signed  key; the same key may be used for both purposes. This corresponds
              to the -z option in dnssec-signzone.

       zonefile
              This option indicates the file containing the zone to be signed.

SEE ALSO

       dnssec-signzone(8), BIND 9 Administrator Reference Manual, RFC 4033.

AUTHOR

       Internet Systems Consortium

COPYRIGHT

       2022, Internet Systems Consortium