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New Member

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1 Message

Mon, Jun 28, 2021 10:02 PM

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Reverse DNS Record

I need a reverse DNS Record setup for one of our static IPs.

Accepted Solution

New problem solver

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3 Messages

7 m ago

I was able to resolve this with a phone call finally which took about 10 minutes, unlike my first phone call which accomplished nothing and lasted an hour. I'm not sure why you had difficulty understanding my request about changing the ptr records. but your response has nothing to with the public DNS records.

This comment was created from this reply

Official Employee

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15 Messages

7 m ago

Hey, there @user_bc72c5! Happy Monday and thanks for taking the time to reach out, I would be more than happy to help getting a reverse DNS setup for you. In order to get started can you please click the chat bubble in the top right corner and send a message to our "Comcast Business" handle?

New problem solver

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3 Messages

7 m ago

I need this done for the school I work for too. This used to be easier in that I could just send a request via email or open a ticket. I tried calling but after an hour the person on the phone lost my connection in that he couldn't hear me anymore. He really didn't understand what I was asking for. Can you tell me how to get this done? 

Official Employee

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16 Messages

You can use the following steps to complete a reverse DNS Lookup: 

 

  1. Select the search bar or Run from the Start menu.
  2. Type in “cmd”.
  3. Click OK or press Enter.
  4. Type “nslookup” into the command prompt.
  5. Enter the IP address in question.

We don't have a way to create a continuous lookup or other record, but you can use these steps to find the information you're looking for.

New problem solver

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3 Messages

7 m ago

I don't need to look up what is listed for the IP I need the DNS entry for my Comcast static IP changed to indicate a different URL. For example. 70.x.x.x might no longer point to abc.school.org but now needs to point to xyz.school.org. In the past, I have been able to ask for this change from Comcast but it has gotten increasingly difficult. I am registered with Network Solutions and do have DNS records there but the ones that refer to the A records and to the PTR records don't change unless Comcast makes the change. The previous email I used to request these changes was [Edited: "Personal Information"]. Thanks.

(edited)

Official Employee

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9 Messages

Thank you for providing these details. I would like to ask, have you tried creating a static routing rule? 

 

If, for whatever reason, a router being connected between the Comcast Gateway and the rest of your LAN does not automatically update the Comcast Gateway’s routing table with its LAN information, use the Static Routing setup page on the Gateway to manually add that route.

A maximum of eight static routes may be added. To set up a static route rule, you must first know the destination IP address, the subnet mask of the destination IP address, and your LAN IP assigned to the router by the Comcast commercial gateway.

New problem solver

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3 Messages

I was able to resolve this with a phone call finally which took about 10 minutes, unlike my first phone call which accomplished nothing and lasted an hour. I'm not sure why you had difficulty understanding my request about changing the ptr records. but your response has nothing to with the public DNS records.

This reply has been converted into a comment

Official Employee

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16 Messages

I'm so glad you were able to work with someone over the phone to help get this resolved for you, MLederer! I apologize for the confusion in your request initially. I appreciate your time and patience in reaching out to our support team for additional assistance with your DNS concerns. 

 

If there's anything else we can help with, our team is online 24/7 to be here when you need us. Thank you for being a valued Comcast Business customer, and have a wonderful rest of your day!