NAME

       ldns-verify-zone - read a DNSSEC signed zone and verify it.

SYNOPSIS

       ldns-verify-zone ZONEFILE

DESCRIPTION

       ldns-verify-zone reads a DNS zone file and verifies it.

       RRSIG resource records are checked against the DNSKEY set at the zone apex.

       Each name is checked for an NSEC(3), if appropriate.

OPTIONS

       -h     Show usage and exit

       -a     Apex only, check only the zone apex

       -e period
              Signatures may not expire within this period.  Default no period is used.

       -i period
              Signatures must have been valid at least this long.  Default signatures should just
              be valid now.

       -k file
              A file that contains a trusted DNSKEY or DS rr.  This option may be given more than
              once.

              Alternatively,   if   -k   is   not   specified,   and   a   default  trust  anchor
              (/etc/unbound/root.key) exists and contains a valid DNSKEY or DS record, it will be
              used as the trust anchor.

       -p [0-100]
              Only  check  this  percentage  of  the  zone.   Which  names to check is determined
              randomly.  Defaults to 100.

       -S     Chase signature(s) to a known key.  The network may be  accessed  to  validate  the
              zone's DNSKEYs. (implies -k)

       -t YYYYMMDDhhmmss | [+|-]offset
              Set the validation time either by an absolute time value or as an offset in seconds
              from the current time.

       -v     Show the version and exit

       -V number
              Set the verbosity level (default 3):

               0: Be silent
               1: Print result, and any errors
               2: Same as 1 for now
               3: Print result, any errors, and the names that are
                  being checked
               4: Same as 3 for now
               5: Print the zone after it has been read, the result,
                  any errors, and the names that are being checked

       periods are given in ISO 8601 duration format:
              P[n]Y[n]M[n]DT[n]H[n]M[n]S

       If no file is given standard input is read.

FILES

       /etc/unbound/root.key
              The file from which trusted keys are loaded  for  signature  chasing,  when  no  -k
              option is given.

SEE ALSO

       unbound-anchor(8)

AUTHOR

       Written by the ldns team as an example for ldns usage.

REPORTING BUGS

       Report bugs to <ldns-team@nlnetlabs.nl>.

COPYRIGHT

       Copyright  (C)  2008 NLnet Labs. This is free software. There is NO warranty; not even for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

                                           27 May 2008                         ldns-verifyzone(1)