---
title: Azure – You can now configure your own DNS on Azure Firewall and use DNS proxy (preview) - cubesys
description: As you know, Azure Firewall is a cloud as a service (FWaaS) from Azure helping you to centrally managed traffic from Azure or to Azure.As you also know, firewalls (and not specifically just Azure Firewall) rely on correct name resolution to be able to work properly.Well, until now, Azure Firewall…
---

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# [Azure – You can now configure your own DNS on Azure Firewall and use DNS proxy (preview) - cubesys](https://www.cubesys.com.au/blog/azure-you-can-now-configure-your-own-dns-on-azure-firewall-and-use-dns-proxy-preview)

 Written by [cubesys](https://www.cubesys.com.au/blog/author/cubesys) | Jun 30, 2020 2:00:00 PM

As you know, Azure Firewall is a cloud as a service (FWaaS) from Azure helping you to centrally managed traffic from Azure or to Azure.

As you also know, firewalls (and not specifically just Azure Firewall) rely on correct name resolution to be able to work properly.

Well, until now, Azure Firewall was **hardcoded** to use Azure DNS only for name resolution. Today, you can now start defining your **own/custom** DNS servers to be used by Azure Firewall.

Logon to your Azure portal ([https://portal.azure.com](https://portal.azure.com/)) and go to the **Firewall** blade

<https://www.cubesys.com.au/hubfs/Imported_Blog_Media/image_thumb-244.png>

There access the firewall you want to update to use your own DNS server and access the **DNS (preview)** configuration blade

<https://www.cubesys.com.au/hubfs/Imported_Blog_Media/image_thumb1-194.png>

You can then switch from Default (Azure provided) to Custom and define the list of your own DNS servers to use; you can also use your **Azure Private DNS** if you have it as long as the private DNS zone is linked with the virtual network protected by Azure Firewall (see [https://docs.microsoft.com/en-us/azure/dns/private-dns-getstarted-portal#link-the-virtual-network](https://docs.microsoft.com/en-us/azure/dns/private-dns-getstarted-portal#link-the-virtual-network))

<https://www.cubesys.com.au/hubfs/Imported_Blog_Media/image_thumb2-157.png>

In addition, but does not require the above action, you can also configure your Azure Firewall to enable the DNS proxy to make Azure Firewall listen on port 53 and forward the request to the defined DNS (either the default ones [Azure] or your custom ones)

<https://www.cubesys.com.au/hubfs/Imported_Blog_Media/image_thumb3-126.png>

[View full post](https://www.cubesys.com.au/blog/azure-you-can-now-configure-your-own-dns-on-azure-firewall-and-use-dns-proxy-preview)

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