ldns-compare-zones(1)       General Commands Manual      ldns-compare-zones(1)

NAME
       ldns-compare-zones - read and compare two zonefiles and print
       differences

SYNOPSIS
       ldns-compare-zones [-c] [-U] [-u] [-i] [-d] [-z] [-s] ZONEFILE1
       ZONEFILE2

DESCRIPTION
       ldns-compare-zones reads two DNS zone files and prints number of
       differences.
       Output is formatted to:
               +NUM_INS        -NUM_DEL        ~NUM_CHG

       Except with the -U or -u option.  Then the output is formatted to:
               +NUM_INS        -NUM_DEL        ~NUM_CHG        =NUM_EQ

       The major comparison is based on the owner name. If an owner name is
       present in zonefile 1, but not in zonefile 2, the resource records with
       this owner name are considered deleted, and counted as NUM_DEL. If an
       owner name is present in zonefile 2, but not in zonefile 1, the
       resource records with this owner name are considered inserted, and
       counted as NUM_INS. If an owner name is present in both, but there is a
       difference in the amount or content of the records, these are
       considered changed, and counted as NUM_CHG.

OPTIONS
       -c     Print resource records whose owner names are in both zone files,
              but with different resource records. (a.k.a. changed)

       -U     From resource records whose owner names are in both zone files,
              but with different resource records, print the unchanged records
              too (a.k.a. changed++).

       -u     Print resource records whose owner names are in both zone files,
              and which resource records are the same. (a.k.a. unchanged)

       -i     Print resource records whose owner names are present only in
              ZONEFILE2 (a.k.a. inserted)

       -d     Print resource records whose owner names are present only in
              ZONEFILE1 (a.k.a. deleted)

       -a     Print all changes (except unchanged). Specifying this option is
              the same as specifying -c -i and -d.

       -z     Suppress zone sorting; this option is not recommended; it can
              cause records to be incorrectly marked as changed, depending of
              the nature of the changes.

       -s     Do not exclude the SOA record from the comparison.  The SOA
              record may then show up as changed due to a new serial number.
              Off by default since you may be interested to know if (other
              zone apex elements) have changed.

       -e     Exit with status code 2 when zones differ.

       -h     Show usage and exit

       -v     Show the version and exit

AUTHOR
       Written by Ondrej Sury <ondrej@sury.org> for CZ.NIC, z.s.p.o. (czech
       domain registry)

REPORTING BUGS
       Report bugs to <ondrej@sury.org>.

COPYRIGHT
       Copyright (C) 2005 CZ.NIC, z.s.p.o.. This is free software. There is NO
       warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE.

                                  17 Oct 2007            ldns-compare-zones(1)