By creating two rules—one to block all UDP traffic on port 53 and another to allow specific DNS servers—you can ensure that only the specified DNS servers are allowed through Windows Firewall while blocking all other DNS traffic. This approach should work as expected and resolve the user's issue.

Configure the service route that the firewall automatically uses, based on whether the target DNS Server has an IP address family type of IPv4 or IPv6.

Running your own nameserver will require additional firewall settings, as you must also enable inbound DNS queries. In other words, allow UDP and TCP protocol from any address to port 53 in your firewall rules.

2024年9月26日 · Running your own nameserver will require additional firewall settings, as you must also enable inbound DNS queries. In other words, allow UDP and TCP protocol from any address to port 53 in your firewall rules. In this guide, we'll explain the DNS settings and how these affect your cloud servers.

2023年9月7日 · In this guide, we'll walk you through two methods for configuring DNS settings on your Zyxel firewall. This method is used when you don't have a local server, such as an Active Directory or DNS server, it's advisable to set Google DNS (e.g., 8.8.8.8) as the primary DNS server on your LAN interface.

2024年2月27日 · Open Control Panel. Click on Network and Internet. Click on Network and Sharing Center. Click the "Change adapter settings" option in the left pane. Right-click the active network interface and...

2017年11月1日 · Most DNS server connectivity issues that are experienced are as a result of firewall settings. DNS servers work through queries (See different server software here). This means that if you block your machine from being queried by means of a firewall, then you’ll definitely not experience any networking.

2015年2月9日 · We have a firewall setup with 2 internet links coming in, one for our main and the other for a backup. When our main internet link goes down, we switch over to the backup which is a separate ISP from the main.

2025年1月31日 · Set up DNS Firewall to protect upstream nameservers from DDoS attacks and reduce load by caching DNS responses.

2024年6月21日 · DNS proxy configuration requires three steps: Enable the DNS proxy in Azure Firewall DNS settings. Optionally, configure your custom DNS server or use the provided default. Configure the Azure Firewall private IP address as a custom DNS address in your virtual network DNS server settings.