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Modify an existing resource record

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

You can use the following procedure to modify an existing resource record in a zone. You can perform this procedure by using the DNS snap-in or by using the Dnscmd command-line tool.

Administrative credentials

To perform this procedure, you must be a member of the Administrators group on the local computer, or you must have been delegated the appropriate authority. If the computer is joined to a domain, members of the Domain Admins group might be able to perform this procedure. As a security best practice, consider using the Run as command to perform this procedure.

Modifying an existing resource record

To modify an existing resource record using the Windows interface
  1. Open the DNS snap-in.

  2. In the console tree, click the applicable zone.

  3. In the details pane, right-click the resource record that you want to modify, and then click Properties.

  4. In Properties, edit the properties that can be modified.

    If necessary, you can view and modify advanced resource record properties with the DNS snap-in. To display advanced properties, on the View menu, click Advanced.

  5. When you have finished modifying the record, click OK.

When advanced view options are enabled, you can modify additional settings for an existing resource record, such as its record-specific Time to Live (TTL).

To open the DNS snap-in, click Start, point to Administrative Tools, and then click DNS.

To modify an existing resource record using the command line
  • At a command prompt, type the following command, and then press ENTER:

    dnscmd ServerName/RecordAddZoneNameNodeName [/Aging] [/OpenAcl] [Ttl] RRTypeRRData


    Value Description


    Required. Specifies the Domain Name System (DNS) host name of the DNS server. You can also type the Internet Protocol (IP) address of the DNS server. To specify the DNS server on the local computer, you can also type a period (.).



    Required. Adds a new resource record.


    Required. Specifies the fully qualified domain name (FQDN) of the zone.


    Required. Specifies the FQDN of the node in the DNS namespace. You can also type the node name relative to the ZoneName or @, which specifies the zone's root node.

    RRType RRData

    Required. Specifies the type of resource record to add, followed by the data to be contained in the resource record.


    Resource record type Resource record data






    Preference ServerName


    Priority Weight Port HostName


    PrimSvr Admin Serial#\ Refresh Retry Expire MinTTL




    String [String]


    MailboxName ErrMailboxName


    Protocol IPAddress Service...


    MapFlag LookupTimeout CacheTimeout IPAddress...


    MapFlag LookupTimeout CacheTimeout RstDomainName


    Value Description


    Specifies a standard IP address, for example,


    Specifies a standard IPv6 address, for example, 1:2:3:4:5:6:7:8.


    Specifies the transmission protocol: UDP or TCP.


    Specifies a standard service, for example, domain, smtp.


    Specifies the FQDN of a resource record that is located in the DNS namespace.

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