![Package(/NAS application) "DNS Server" needs PORT 53 to run, so it can run while installing Package, "Synology Directory Server" But Port 53 is taken - I never deal with ports, is this Package(/NAS application) "DNS Server" needs PORT 53 to run, so it can run while installing Package, "Synology Directory Server" But Port 53 is taken - I never deal with ports, is this](https://preview.redd.it/ow8ew36a62171.png?width=640&crop=smart&auto=webp&s=ffa4aa8759b0c6652238bd0ee22937d3457e09b6)
Package(/NAS application) "DNS Server" needs PORT 53 to run, so it can run while installing Package, "Synology Directory Server" But Port 53 is taken - I never deal with ports, is this
![How do I manage Microsoft Active Directory client services on a Synology NAS? - Synology Knowledge Center How do I manage Microsoft Active Directory client services on a Synology NAS? - Synology Knowledge Center](https://kb.synology.com/_images/autogen/How_to_join_my_Synology_NAS_into_Windows_Active_Directory_domain/5.png)
How do I manage Microsoft Active Directory client services on a Synology NAS? - Synology Knowledge Center
![How to setup a Synology NAS (DSM 6) - Part 37: Install and configure DNS server (fix VPN Server) - YouTube How to setup a Synology NAS (DSM 6) - Part 37: Install and configure DNS server (fix VPN Server) - YouTube](https://i.ytimg.com/vi/iqgp2L1K6RQ/sddefault.jpg)
How to setup a Synology NAS (DSM 6) - Part 37: Install and configure DNS server (fix VPN Server) - YouTube
![DDNS doesn't work and shows "Connection failed. Cannot resolve the IP address of the server." What can I do? - Synology Knowledge Center DDNS doesn't work and shows "Connection failed. Cannot resolve the IP address of the server." What can I do? - Synology Knowledge Center](https://kb.synology.com/_images/faq_images/DDNS_cannot_resolve_IP/symptom-dsm7.png)
DDNS doesn't work and shows "Connection failed. Cannot resolve the IP address of the server." What can I do? - Synology Knowledge Center
![How do I manage Microsoft Active Directory client services on a Synology NAS? - Synology Knowledge Center How do I manage Microsoft Active Directory client services on a Synology NAS? - Synology Knowledge Center](https://kb.synology.com/_images/autogen/How_to_join_my_Synology_NAS_into_Windows_Active_Directory_domain/3.png)
How do I manage Microsoft Active Directory client services on a Synology NAS? - Synology Knowledge Center
![How can I implement an SSO solution on Synology NAS with Azure AD Domain Services? - Synology Knowledge Center How can I implement an SSO solution on Synology NAS with Azure AD Domain Services? - Synology Knowledge Center](https://kb.synology.com/_images/autogen/How_to_join_NAS_to_Azure_AD_Domain/6.png)