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named-checkconf - Man Page

named configuration file syntax checking tool


named-checkconf [-chjlvz] [-p [-x ]] [-t directory] {filename}


named-checkconf checks the syntax, but not the semantics, of a named configuration file. The file, along with all files included by it, is parsed and checked for syntax errors. If no file is specified, /etc/named.conf is read by default.

Note: files that named reads in separate parser contexts, such as rndc.key and bind.keys, are not automatically read by named-checkconf. Configuration errors in these files may cause named to fail to run, even if named-checkconf was successful. However, named-checkconf can be run on these files explicitly.



This option prints the usage summary and exits.


When loading a zonefile, this option instructs named to read the journal if it exists.


This option lists all the configured zones. Each line of output contains the zone name, class (e.g. IN), view, and type (e.g. primary or secondary).


This option specifies that only the "core" configuration should be checked. This suppresses the loading of plugin modules, and causes all parameters to plugin statements to be ignored.


This option ignores warnings on deprecated options.


This option prints out the named.conf and included files in canonical form if no errors were detected. See also the -x option.

-t directory

This option instructs named to chroot to directory, so that include directives in the configuration file are processed as if run by a similarly chrooted named.


This option prints the version of the named-checkconf program and exits.


When printing the configuration files in canonical form, this option obscures shared secrets by replacing them with strings of question marks (?). This allows the contents of named.conf and related files to be shared - for example, when submitting bug reports - without compromising private data. This option cannot be used without -p.


This option performs a test load of all zones of type primary found in named.conf.


This indicates the name of the configuration file to be checked. If not specified, it defaults to /etc/named.conf.

Return Values

named-checkconf returns an exit status of 1 if errors were detected and 0 otherwise.

See Also

named(8), named-checkzone(8), BIND 9 Administrator Reference Manual.


Internet Systems Consortium


9.18.26 BIND 9