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Proper DNS Resolution for non-dynamic addresses

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For certain types of static, user-added systems like firewalls, routers, switches, etc, you have to manually create the DNS entry. However, just creating a DNS entry does not complete the record. In the TPFND enviroment, it has been realized that even when the "Update associated pointer (PTR) record" is checked in the DNS record properties, the PTR itself is often not created. Therefor, for these devices, a PTR record must be manually created afterwards.

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We have a Cisco 2960G switch that we manually created a DNS record for:

  • Host Name: 2960G
  • FQDN:
  • Type: Host (A)
  • Data:

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Open DNS Manager on your main DNS server Go into "Reverse Lookup Zones" Go into the correct folder (here it's Right-click in the main panel, choose "New Pointer (PTR)..." You will get a pop-up of "New Resource Record" In Host IP Address, add 9 after the last dot Click "Browse" next to the empty "Host name:" entry Select (double-click) the main DNS server Select (double-click) the "Forward Lookup Zones" Select (double-click) "" Scroll down to 2960G, click OK Leave "Allow any authenticated user to update" unchecked Click OK

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In PowerShell, "resolve-dnsname" returned DNS name does not exist:

PS C:\> resolve-dnsname
resolve-dnsname : : DNS name does not exist
At line:1 char:1
+ resolve-dnsname
+ ~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: ( [Resolve-DnsName], Win32Exception
    + FullyQualifiedErrorId : DNS_ERROR_RCODE_NAME_ERROR,Microsoft.DnsClient.Commands.ResolveDnsName


In PowerShell, "resolve-dnsname" returns a valid result:

PS C:\> resolve-dnsname

Name                           Type   TTL   Section    NameHost
----                           ----   ---   -------    --------          PTR    3600  Answer

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