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



NAME
       ldns-compare-zones  -  read and compare two zonefiles and print differ-
       ences

SYNOPSIS
       ldns-compare-zones [-c] [-U] [-u] [-i] [-d] [-z] [-s]  ZONEFILE1  ZONE-
       FILE2

DESCRIPTION
       ldns-compare-zones  reads  two DNS zone files and prints number of dif-
       ferences.
       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  consid-
       ered 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. unchaged)

       -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 amd -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  Ondej  Sur  <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 PUR-
       POSE.



                                  17 Oct 2007            ldns-compare-zones(1)
