dnssec-checkds
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## Name

dnssec-checkds — DNSSEC delegation consistency checking tool

## Synopsis

`dnssec-checkds` [`-d `dig path``] [`-D `dsfromkey path``] [`-f `file``] [`-l `domain``] [`-s `file``] {zone}

## DESCRIPTION

dnssec-checkds verifies the correctness of Delegation Signer (DS) or DNSSEC Lookaside Validation (DLV) resource records for keys in a specified zone.

## OPTIONS

-a `algorithm`

  Specify a digest algorithm to use when converting the zone's DNSKEY records to expected DS or DLV records. This option can be repeated, so that multiple records are checked for each DNSKEY record.

  The `algorithm` must be one of SHA-1, SHA-256, or SHA-384. These values are case insensitive, and the hyphen may be omitted. If no algorithm is specified, the default is SHA-256.

-f `file`

  If a `file` is specified, then the zone is read from that file to find the DNSKEY records. If not, then the DNSKEY records for the zone are looked up in the DNS.

-l `domain`

  Check for a DLV record in the specified lookaside domain, instead of checking for a DS record in the zone's parent.

-s `file`

  Specifies a prepared dsset file, such as would be generated by dnssec-signzone, to use as a source for the DS RRset instead of querying the parent.

-d `dig path`

  Specifies a path to a dig binary. Used for testing.

-D `dsfromkey path`

  Specifies a path to a dnssec-dsfromkey binary. Used for testing.

## SEE ALSO

dnssec-dsfromkey(8) , dnssec-keygen(8) , dnssec-signzone(8) ,

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BIND 9.15.1 (Development Release)