DNS resource record classes

  • Release version: Australia
  • Updated March 12, 2026
  • 3 minutes to read
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    Summary of DNS resource record classes

    The CMDB CI Class Models ServiceNow Store app enhances your Configuration Management Database (CMDB) by adding or updating classes specifically for DNS resource records (RR). These records represent key DNS data such as domain IP addresses, mail server info, and aliases, essential for managing DNS infrastructure effectively.

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    This update aligns with the CMDB schema changes, deprecating old DNS classes and introducing new structured classes with clear identification rules to improve DNS data integration and lifecycle management within ServiceNow.

    Key Features

    • Supported DNS record types: Includes A (IPv4), AAAA (IPv6), CNAME (canonical name aliases), MX (mail exchange), and ALIAS records, enabling comprehensive DNS data capture.
    • Detailed DNS record classes: Separate CMDB classes for each DNS record type with specific columns such as IP addresses, canonical names, and alias names, all linked to DNS service providers.
    • Domain information capture: Domain registration details such as domain name, registrar, creation and update dates, and expiration information are stored for ownership and tenure tracking.
    • Identification rules: Composite keys combining name, service provider, and relevant record data ensure accurate record identification and management.
    • Integration capabilities: Supports auto-populating DNS data from registrars, linking DNS records with IP Address Management (IPAM), certificates, and Content Delivery Network (CDN) providers.

    Benefits for ServiceNow Customers

    • Enables accurate tracing and management of DNS resource records within the CMDB, improving DNS infrastructure visibility and control.
    • Facilitates workflows for requesting, approving, and tracking domain name registrations and their lifecycle.
    • Supports seamless integration and data synchronization with external DNS registrars and related services.
    • Improves data quality and governance by using updated and standardized DNS record classes with clear identification rules.

    The CMDB CI Class Models ServiceNow Store app adds or updates classes for DNS records, also known as a DNS resource records (RR).

    Request apps on the Store

    Visit the ServiceNow Store to view all the available apps, and for information about submitting requests to the store. For cumulative release notes information for all released apps, see the ServiceNow Store version history release notes.

    DNS zone resource records

    A DNS record is an entry in the domain name system (DNS) database that provides information about a specific aspect of a domain name to enable you to trace the ownership and tenure of a domain details from tools like who is and DNS lookup tools. Each DNS record contains data associated with a domain name, such as IP addresses, mail server addresses, or other resources. Each type of record serves a specific purpose, such as mapping domain names to IP addresses (A records), AAAA records, identifying mail servers for a domain (MX records), and providing aliases for domain names (CNAME records), among others. DNS resource records are essential for the proper functioning of the DNS infrastructure on the internet.

    See the release notes for all CMDB CI class models.

    Note:
    In CMDB CI Class Models release 1.57, existing classes in the CMDB schema that represent DNS resource records like A, AAAA, CName, and so on are deprecated. The following classes are defined with an ideal base, child class, and identification rule.

    Supported DNS resource record types

    • A Record: Holds the IP address of a domain.
    • AAAA Record: Contains the IPv6 address of a domain.
    • CNAME Record: Forwards one domain or subdomain to another domain. Does not provide an IP address.
    • MX Record: Directs mail to an email server.
    The supported record types enable actions like the following:
    • Capture domain name registration in the CMDB and create workflow to request, approve, and track life cycle.
    • Auto-populate the data from integration to the registrar.
    • Connect the data to an IPAM record.
    • Connect the data to the certificate on the DNS.
    • Connect the data to the CDN provider.
    Figure 1. DNS resource record classes integrated with the CMDB class hierarchy
    DNS resource record class model.

    Table: cmdb_ci_dns_resource_record

    This section lists the classes that the CMDB CI Class Models app adds or updates. For the list of classes in the base system, including classes that this app might extend, see CMDB tables descriptions.

    DNS record detail from Domain Name Server (DNS) for a WWW domain.

    Column Description Details

    DNS Service provider [service_provider]

    Replaces the deprecated column: DNS Service provider [name]

    		 Defines which DNS service provider supplied this value, examples like Cloudflare,Google DNS, OpenDNS, Local DNS,Private DNS,empty, and so on.

    Identification Rule (name+service_provider) allow null

    String (255)
    Time to Live [ttl] Time, in seconds, that a DNS record will be cached by an outside DNS server or resolver. integer
    Record Class [record_class] Class of DNS record.
    • IN (Internet) (default)
    • CH (Chaosnet)
    • HS (Hesiod)

    Table: cmdb_ci_dns_zone_a_record

    A records hold only IPv4 addresses.

    Column Description Details
    A IP Address [ip_address] IPv4 address ip_addr

    Identification Rule (name+service_provider+ip_address) allow null

    Table: cmdb_ci_dns_zone_aaaa_record

    AAAA records hold only IPv6 addresses.

    Column Description Details
    AAAA IP Address [ip_address] IPv6 address ip_addr

    Identification Rule (name+service_provider+ip_address) allow null

    Table: cmdb_ci_dns_zone_cname_record

    A canonical name (CNAME) record points from an alias domain to a canonical domain.

    Column Description Details
    Canonical Name [cname] Fully qualified domain name / Canonical Name. String (255)

    Identification Rule (name+service_provider+cname) allow null

    Table: cmdb_ci_dns_zone_alias_record

    An ALIAS record points domain name to a hostname instead of an IP address.

    Column Description Details
    Alias Name [alias_name] Alias name of the DNS record. String (255)

    Identification Rule (name+service_provider+alias_name) allow null

    Table: cmdb_ci_dns_domain_info

    Domain Name enables you to trace ownership and tenure of domain name details using DNS lookup tools like whois.

    Column Description Details
    Domain Name [domain_name] WWW Domain Name value from the DNS lookup tool. String (255)

    Identification Rule (Name)
    Registry Domain ID [registry_domain_id] Registry Domain ID value from the DNS lookup tool. String (255)
    Registrar [registrar] Registrar value from the DNS lookup tool. String (255)
    Domain Creation Date [domain_creation_date] Creation Date of the domain from the DNS lookup tool. glide_date_time
    Domain Updated Date [domain_updated_date] Updated Date of the domain from the DNS lookup tool. glide_date_time
    Registrar Registration Expiration Date [registrar_registration_expiration_date] Registrar Registration Expiration Date value from the DNS lookup tool. glide_date_time