today I want to share with you a cool tip on how to automate your internal DNS during a disaster with Azure Site Recovery. If you don’t know what Azure Site Recovery is, it’s a service that helps you replicate your on-premises workloads to the cloud and fail over to them in case of a disaster. It’s a great way to ensure business continuity and minimize downtime.
But what about your internal DNS? You know, the one that resolves your internal hostnames to IP addresses. If you have a domain controller running on-premises, you probably have a DNS server running on it as well. And if your domain controller goes down, so does your DNS. That means your internal applications and services won’t be able to communicate with each other, even if they are running in the cloud.
That’s why you need to automate your internal DNS during a disaster with Azure Site Recovery. Here’s how you do it:
- First, you need to create a secondary DNS server in Azure. You can use a Windows Server VM or an Azure DNS private zone. Make sure it has the same DNS records as your primary DNS server on-premises.
- Next, you need to configure Azure Site Recovery to update the DNS settings of your replicated VMs during failover. You can do this by using recovery plans and automation scripts. Basically, you want to change the DNS server of your VMs from the primary one on-premises to the secondary one in Azure.
- Finally, you need to test your failover and make sure everything works as expected. You can use Azure Site Recovery’s test failover feature to do this without affecting your production environment.
And that’s it! You have successfully automated your internal DNS during a disaster with Azure Site Recovery. Now you can rest assured that your internal applications and services will keep running smoothly in the cloud, even if your on-premises infrastructure goes down.
I hope you found this tip useful and interesting. If you have any questions or feedback, feel free to leave a comment below.
Thanks for reading and happy clouding!