The Windows DNS Server must maintain the integrity of information during reception.

Information can be unintentionally or maliciously disclosed or modified during preparation for transmission, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information.

Note: This check is not applicable for Windows DNS Servers that host only Active Directory-integrated zones or for Windows DNS Servers on a classified network.

Validate this check from the Windows DNS Server being configured/reviewed.

Log on to the Windows DNS Server using the account designated as Administrator or DNS Administrator.

Determine a valid host in the zone.

Open the Windows PowerShell prompt on the Windows DNS Server being configured/reviewed.

Issue the following command: (Replace www.zonename.mil with a FQDN of a valid host in the zone being validated. Replace ###.###.###.### with the FQDN or IP address of the Windows DNS Server hosting the signed zone.)

resolve-dnsname www.zonename.mil -server ###.###.###.### -dnssecok <enter>

Note: It is important to use the -server switch followed by the DNS server name/IP address.

The result should show the "A" record results.

In addition, the results should show QueryType: RRSIG with an expiration, date signed, signer, and signature, similar to the following:

Name: www.zonename.mil QueryType: RRSIG TTL: 189 Section: Answer TypeCovered: CNAME Algorithm: 8 LabelCount: 3 OriginalTtl: 300 Expiration: 11/21/2022 10:22:28 PM Signed: 10/22/2022 10:22:28 PM Signer: zonename.mil Signature: {87, 232, 34, 134...}

Name: origin-www.zonename.mil QueryType: A TTL: 201 Section: Answer IP4Address: ###.###.###.###

If the results do not show the RRSIG and signature information, this is a finding.

Sign or re-sign the hosted zone(s) on the DNS server being validated.

Log on to the Windows DNS Server using the Domain Admin or Enterprise Admin account.

Press the Windows key + R and execute "dnsmgmt.msc".

On the opened DNS Manager snap-in from the left pane, expand the server name for the DNS server, and then expand "Forward Lookup Zones".

From the expanded list, right-click to select the zone (repeat for each hosted zone), point to DNSSEC, and then click "Sign the Zone" using either approved saved parameters or approved custom parameters.