Provided by: bind9-utils_9.18.24-0ubuntu0.23.10.1_amd64 
NAME
named-checkzone - zone file validity checking or converting tool
SYNOPSIS
named-checkzone [-d] [-h] [-j] [-q] [-v] [-c class] [-f format] [-F format] [-J filename]
[-i mode] [-k mode] [-m mode] [-M mode] [-n mode] [-l ttl] [-L serial] [-o filename] [-r
mode] [-s style] [-S mode] [-t directory] [-T mode] [-w directory] [-D] [-W mode]
{zonename} {filename}
DESCRIPTION
named-checkzone checks the syntax and integrity of a zone file. It performs the same
checks as named does when loading a zone. This makes named-checkzone useful for checking
zone files before configuring them into a name server.
OPTIONS
-d This option enables debugging.
-h This option prints the usage summary and exits.
-q This option sets quiet mode, which only sets an exit code to indicate successful or
failed completion.
-v This option prints the version of the named-checkzone program and exits.
-j When loading a zone file, this option tells named to read the journal if it exists.
The journal file name is assumed to be the zone file name with the string .jnl
appended.
-J filename
When loading the zone file, this option tells named to read the journal from the
given file, if it exists. This implies -j.
-c class
This option specifies the class of the zone. If not specified, IN is assumed.
-i mode
This option performs post-load zone integrity checks. Possible modes are full (the
default), full-sibling, local, local-sibling, and none.
Mode full checks that MX records refer to A or AAAA records (both in-zone and
out-of-zone hostnames). Mode local only checks MX records which refer to in-zone
hostnames.
Mode full checks that SRV records refer to A or AAAA records (both in-zone and
out-of-zone hostnames). Mode local only checks SRV records which refer to in-zone
hostnames.
Mode full checks that delegation NS records refer to A or AAAA records (both
in-zone and out-of-zone hostnames). It also checks that glue address records in the
zone match those advertised by the child. Mode local only checks NS records which
refer to in-zone hostnames or verifies that some required glue exists, i.e., when
the name server is in a child zone.
Modes full-sibling and local-sibling disable sibling glue checks, but are otherwise
the same as full and local, respectively.
Mode none disables the checks.
-f format
This option specifies the format of the zone file. Possible formats are text (the
default), and raw.
-F format
This option specifies the format of the output file specified. For named-checkzone,
this does not have any effect unless it dumps the zone contents.
Possible formats are text (the default), which is the standard textual
representation of the zone, and raw and raw=N, which store the zone in a binary
format for rapid loading by named. raw=N specifies the format version of the raw
zone file: if N is 0, the raw file can be read by any version of named; if N is 1,
the file can only be read by release 9.9.0 or higher. The default is 1.
-k mode
This option performs check-names checks with the specified failure mode. Possible
modes are fail, warn (the default), and ignore.
-l ttl This option sets a maximum permissible TTL for the input file. Any record with a
TTL higher than this value causes the zone to be rejected. This is similar to using
the max-zone-ttl option in named.conf.
-L serial
When compiling a zone to raw format, this option sets the "source serial" value in
the header to the specified serial number. This is expected to be used primarily
for testing purposes.
-m mode
This option specifies whether MX records should be checked to see if they are
addresses. Possible modes are fail, warn (the default), and ignore.
-M mode
This option checks whether a MX record refers to a CNAME. Possible modes are fail,
warn (the default), and ignore.
-n mode
This option specifies whether NS records should be checked to see if they are
addresses. Possible modes are fail, warn (the default), and ignore.
-o filename
This option writes the zone output to filename. If filename is -, then the zone
output is written to standard output.
-r mode
This option checks for records that are treated as different by DNSSEC but are
semantically equal in plain DNS. Possible modes are fail, warn (the default), and
ignore.
-s style
This option specifies the style of the dumped zone file. Possible styles are full
(the default) and relative. The full format is most suitable for processing
automatically by a separate script. The relative format is more human-readable and
is thus suitable for editing by hand. This does not have any effect unless it dumps
the zone contents. It also does not have any meaning if the output format is not
text.
-S mode
This option checks whether an SRV record refers to a CNAME. Possible modes are
fail, warn (the default), and ignore.
-t directory
This option tells named to chroot to directory, so that include directives in the
configuration file are processed as if run by a similarly chrooted named.
-T mode
This option checks whether Sender Policy Framework (SPF) records exist and issues a
warning if an SPF-formatted TXT record is not also present. Possible modes are warn
(the default) and ignore.
-w directory
This option instructs named to chdir to directory, so that relative filenames in
master file $INCLUDE directives work. This is similar to the directory clause in
named.conf.
-D This option dumps the zone file in canonical format.
-W mode
This option specifies whether to check for non-terminal wildcards. Non-terminal
wildcards are almost always the result of a failure to understand the wildcard
matching algorithm (RFC 4592). Possible modes are warn (the default) and ignore.
zonename
This indicates the domain name of the zone being checked.
filename
This is the name of the zone file.
RETURN VALUES
named-checkzone returns an exit status of 1 if errors were detected and 0 otherwise.
SEE ALSO
named(8), named-checkconf(8), named-compilezone(8), RFC 1035, BIND 9 Administrator
Reference Manual.
AUTHOR
Internet Systems Consortium
COPYRIGHT
2024, Internet Systems Consortium