Virtual IP vs Inbound IP - what do you point DNS to?

Question

Virtual IP vs Inbound IP - what do you point DNS to?

BHOA EC 0

I have setup a custom domain for an Azure webapp. When I look at the overview, it shows a specific IP for the Virtual IP address. However, when I look at Networking - there is a different IP address for "Inbound". Which one is supposed to be used for DNS records?

rvinnakota 4,760 Reputation points Moderator

2024-11-19T22:30:41.96+00:00
Hi BHOA EC,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

When configuring DNS records for an Azure web app, you should generally use the Virtual IP (VIP) address rather than the Inbound IP address.

Virtual IP (VIP) Address: This is a static IP address assigned to the Azure web app. It is typically used for DNS configuration and is the IP address that you should point your custom domain’s A record to. This ensures that traffic directed to your custom domain reaches your web app.

Inbound IP Address: This might refer to a dynamic IP address that can change, and it is generally used for inbound traffic management or for specific network configurations within Azure. It is not typically used for DNS records for custom domains.

Refer this link : https://docs.azure.cn/en-us/app-service/overview-inbound-outbound-ips?form=MG0AV3#how-ip-addresses-work-in-app-service

Cheers,
Rohith.

If you have any further concerns, please do not hesitate to contact us. We are pleased to help you.

If the information is helpful, please click on "Upvote" and "Accept Answer" so that it would be helpful to other community members.
rvinnakota 4,760 Reputation points Moderator

2024-11-20T21:15:48.4333333+00:00

Hi BHOA EC,

Greetings of the day!!

Just checking in to see if you had a chance to see my response to your question. Please tell us if it was helpful and feel free to reach out to us if you have any queries.

Thanks,

Rohith
BHOA EC 0 Reputation points

2024-11-21T19:10:03.7+00:00

I tried using the Virtual IP address, but this did not work. I have a custom domain configured and this was only accessible by pointing the DNS records to the "Inbound IP".
BHOA EC 0 Reputation points

2024-11-21T19:10:42.6366667+00:00

why do I want to use a CNAME versus just pointing to the Inbound IP?
rvinnakota 4,760 Reputation points Moderator

2024-11-21T19:20:03.4066667+00:00

Hi BHOA EC,

Glad to know that your issue has been resolved. And thanks for sharing the solution

Thanks,
Rohith

2 answers

Your answer

rvinnakota 4,760 Reputation points Moderator

2024-11-19T22:30:41.96+00:00

Hi BHOA EC,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

When configuring DNS records for an Azure web app, you should generally use the Virtual IP (VIP) address rather than the Inbound IP address.

Virtual IP (VIP) Address: This is a static IP address assigned to the Azure web app. It is typically used for DNS configuration and is the IP address that you should point your custom domain’s A record to. This ensures that traffic directed to your custom domain reaches your web app.

Inbound IP Address: This might refer to a dynamic IP address that can change, and it is generally used for inbound traffic management or for specific network configurations within Azure. It is not typically used for DNS records for custom domains.

Refer this link : https://docs.azure.cn/en-us/app-service/overview-inbound-outbound-ips?form=MG0AV3#how-ip-addresses-work-in-app-service

Cheers,
Rohith.

If you have any further concerns, please do not hesitate to contact us. We are pleased to help you.

If the information is helpful, please click on "Upvote" and "Accept Answer" so that it would be helpful to other community members.
rvinnakota 4,760 Reputation points Moderator

2024-11-20T21:15:48.4333333+00:00

Hi BHOA EC,

Greetings of the day!!

Just checking in to see if you had a chance to see my response to your question. Please tell us if it was helpful and feel free to reach out to us if you have any queries.

Thanks,

Rohith
BHOA EC 0 Reputation points

2024-11-21T19:10:03.7+00:00

I tried using the Virtual IP address, but this did not work. I have a custom domain configured and this was only accessible by pointing the DNS records to the "Inbound IP".
BHOA EC 0 Reputation points

2024-11-21T19:10:42.6366667+00:00

why do I want to use a CNAME versus just pointing to the Inbound IP?
rvinnakota 4,760 Reputation points Moderator

2024-11-21T19:20:03.4066667+00:00

Hi BHOA EC,

Glad to know that your issue has been resolved. And thanks for sharing the solution

Thanks,
Rohith

Answer 1

Hi @BHOA EC , I understand you have setup a custom domain for Azure Static Web Apps and wondering how to add DNS entry for it.

If you're using Azure DNS, you can set it directly from Azure Static Web Apps portal: https://learn.microsoft.com/en-us/azure/static-web-apps/custom-domain-azure-dns#map-the-domain-to-your-website

If you're not using Azure DNS, you can use CNAME and point it to Azure Static Web Apps URL: https://learn.microsoft.com/en-us/azure/static-web-apps/custom-domain-external#get-your-static-web-app-url

Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.

Answer 2

Hi BHOA EC,

I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this!Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others", I'll repost your solution.

Please click "Accept" the answer as original posters help the community find answers faster by identifying the correct answer.