2,599 questions
Hello,
on the network where the Synology device is connected, can you ping the DNS servers for the ADDS domain?
Synology with Azure AD DS Issue
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Stefan Calin
1
Reputation point
I am trying to set up a connection between Azure and Synology as per article: https://kb.synology.com/en-uk/DSM/tutorial/How_to_join_NAS_to_Azure_AD_Domain
Even after I created the Azure AD DS and is running without any health issues, when trying to domain join the Synology NAS, I get an error saying that is Unable to resolve the domain name.
Context: my domain is from GoDaddy and the DNS are managed in GoDaddy.
The domain is already verified with Azure from 2 years, as is the primary email domain for O365 portal.
How can I resolve this, as I have no idea why is doing this issue.
Microsoft Security | Microsoft Entra | Other
2 answers
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Rafael da Rocha 5,251 Reputation points2022-12-15T17:55:10.383+00:00 -
Stefan Calin 1 Reputation point
2022-12-15T17:56:44.12+00:00 hei @Rafael da Rocha I cannot, as the PING is disabled in Azure, oficial reponse from support.
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Rafael da Rocha 5,251 Reputation points
2022-12-15T17:58:54.523+00:00 ok, but is there connectivity?
what if you run
tnc _dnsIP_ -Port 53in powershell?
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Stefan Calin 1 Reputation point
2022-12-15T21:47:33.41+00:00 Running on mac, but with nc I cannot connect or establish any kind of connection with Azure AD DS, DNS Ip's or public ip
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JimmySalian-2011 42,511 Reputation points2022-12-15T17:58:18.1+00:00 Hi,
Seems like a Domain Name resolution issue, can you follow this link as it is similar steps but high level incase you might have missed an option. So have you enabled SSO on the tenant and approved the Synology App permissions? how-to-implement-an-sso-solution-on-synology-nas-with-microsoft-azure-ad-domain-services
Check AAD Authentication logs in the portal you should be able to narrow the issue.
Hope this helps.
JS==
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Stefan Calin 1 Reputation point
2022-12-15T21:41:58.19+00:00 Tried also with the steps from the article you recommended. same behaviour.... I did check the logs, there isn't something pointing to this. :(
it is enough for the private domain to only be verified with Azure? no fwd needed ?
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Marilee Turscak-MSFT 37,206 Reputation points Microsoft Employee Moderator2023-01-04T00:13:19.06+00:00 Have you verified that there aren't any firewalls blocking the connection?
We don't have any official guidance on Synology integration and URL Forwarding Records is currently not supported for Azure DNS. It might be better to reach out on the Synology forums: https://community.synology.com/
I would check some of these related threads. Some suggest rebooting NAS to resolve the issue. https://www.reddit.com/r/qnap/comments/qewilh/nas_can_no_longer_access_the_internet_dns_unable/
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