NAME

       dnssec-verify - DNSSEC zone verification tool

SYNOPSIS

       dnssec-verify  [-c class] [-E engine] [-I input-format] [-J filename] [-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.

       -J filename
              This option tells dnssec-verify to read  the  journal  from  the  given  file  when
              loading the zone file.

       -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

       2024, Internet Systems Consortium