ldns-verifyzone(1)					      General Commands Manual						ldns-verifyzone(1)

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 (/var/lib/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

       /var/lib/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  PUR-
       POSE.

								    27 May 2008 						ldns-verifyzone(1)