We have a virtual machine created in Azure which is using a private VNet configured with custom DNS servers in order to domain join the VM (eg. contoso.com)
Now we have a private DNS zone (eg subdomain.contoso.com) created in Azure which is linked to the same VNet as the VM. However, we are not able to resolve the private DNS entries from within the domain joined VM as I believe, Azure query the Azure private DNS with the IP 168.63.129.16
Is there a way we can forward DNS requests from a VM in Azure VNet using custom DNS servers to Azure private DNS zone linked to the same VNet?
Any help is much appreciated. Thanks.
By using Azure Private DNS, you can resolve domain names in a virtual network without the need to add a custom DNS solution.
By using private DNS zones, you can use your own custom domain names rather than the Azure-provided names available today
Is there a way we can forward DNS requests from a VM in Azure VNet
using custom DNS servers to Azure private DNS zone linked to the same
VNet?
If you have created custom DNS private zone, you can enable Autoregistration feature so that DNS requests from your VM in the VNET will be forwarded to the Azure private DNS zone
Related
I know that Azure private DNS zone should be linked to the VNET.
Does it apply to the Azure DNS zone as well? Should we integrate the azure dns zone with VNet? If not, how does the request reach the Azure DNS zone for name resolution?
Only Azure Private DNS zones need to be linked to Virtual Networks.
Azure DNS zones are supposed to be used for public name resolution so you would probably own the domain name and point it to Azure DNS resolvers so that the DNS records that you add to the zone can be queried publicly.
I found this post to be helpful.
I am setting up a private dns zone in azure because we are moving our API management instance behind an application gateway. i enabled the vnet link between the zone and the significant Vnet, but it does not seem to be resolving, neither from the appgw and also not from a vm in the linked Vnet. What am i missing here?
Check if any resources is registered in private zone. Also it’s worth to check the dns settings on VNET, if it is pointing to default Azure DNS.
I have hosted my web application in azure, My team accessing my application vi application gateway private ip using Azure P2P VPN connection. My application is working with private IP, I want to configure dns name and ssl certificates for my private ip.
Following things I have tired so far
Created Azure Private DNS Zone and Linked my VNets
Created A records for my private ips
Added dnssuffixes in azurevpnconfig.xml (Azure VPN Client configuration)
I tried accessing test.demo.com, I'm getting site not be reached
Not sure what I'm missing
Clarification would be helpful
Azure wont support private dns configuration for P2S VPN connection ?
Any other workaround to achieve dns and SSL configuration for private IPs ?
Reference :
https://learn.microsoft.com/en-us/answers/questions/64223/issue-with-resolving-hostnames-while-connected-to.html
https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-troubleshoot-vpn-point-to-site-connection-problems
As per Name resolution for resources in Azure virtual networks:
In order for the P2S VPN clients to be able to resolve Private Endpoint entries hosted on Azure Private DNS Zones, you must leverage an existing DNS Server (Forwarder or Proxy) or deploy one IaaS VM using a DNS Server role. That is required to P2S VPN clients be able to consume Azure Private DNS Zone which is exposed to 168.63.129.16 via DNS Forwarder/Proxy.
Once you have a DNS forwarder/proxy deployed on Azure, you can define the DNS server at the VNET level or set DNS Server configuration directly on client XLM profile. Post this, you will be able to resolve Private Endpoint entries from your P2S clients.
Refer : https://learn.microsoft.com/en-us/azure/private-link/private-endpoint-dns#on-premises-workloads-using-a-dns-forwarder
https://github.com/dmauser/PrivateLink/tree/master/DNS-Integration-P2S
I have an azure network set up with the default Azure DNS.
All the VMs are ubuntu.
When I try to access another VM on the network via the public DNS name it resolves to the public IP.
How do I make it resolve to the internal IP when I request it from the virtual network (and obviously still resolve to the public IP when requested externally).
I'm interested in cli answers as well as configurations through the portal.
Azure DNS for IaaS and PaaS solutions
Please see this article for more information on Azure's own DNS service associated with virtual networks. In short
When role instances and VMs hosted in Azure need to resolve domain
names to internal IP addresses, they can use one of two methods:
Azure-provided name resolution
Name resolution that uses your own DNS server (which might forward queries to the Azure-provided DNS servers)
The type of name resolution you use depends on how your VMs and role
instances need to communicate with each other.
Azure DNS Private Zones (in preview)
There's also a relatively new service called, Azure DNS Private Zones that allow you to set up a private DNS service to be used with, for example virtual networks.
This service allows you to set up a private domain and private IPs for your machines. See this page for more information and some common usage scenarios.
Also, see this this feature suggestion:
Enable split DNS for providing both public and internal name resolution to VMs in the VNET
Is there a way to point an Azure NIC to the records one created in an Azure DNS zone?
At present Azure DNS doesn't support private DNS zones, i.e. those only available to your vnet. Also, the DNS servers specified in the "Add DNS server" box needs to be a recursive resolver, Azure DNS is an Authoritative DNS service, i.e. it will only serve answers for the zones it hosts.
We can't add Azure DNS zone to NIC custom DNS. The custom DNS required IP address, we can add the DNS server IP address to it.
For example, we can add 8.8.8.8 to it, also we can add local DNS server IP address to it(need VPN). Or create a Azure windows VM and install DNS role on it, and add this VM ip address to it.
If you want to use Azure DNS zone to manage your records, we can map your own domain name to DNS zone, and add name servers to your domain name(add this by domain name registrar manage webpage).
The following image shows an example DNS query about Azure DNS zone:
If you want to add record to DNS zone, and you want to map your 3rd party domain name map to Azure DNS zone, we can follow those steps in that answer.
Note:
Keep in mind Azure DNS is not the domain registrar, we should buy domain name from domain registrar(like godaddy, register.com).
Update:
If you just want to use domain name in your virtual network, there is no need to buy a domain, we can use AAD DS in our virtual network. Or we can deploy a VM and install DC on it, work as on-prem.
By the way, in the same virtual network, we can ping VM's name by default.