Synology SA3400 Synology Directory Server Administrator s Guide for DSM 7.1 - Page 19

Manage DNS Resource Records, DNS Auto Registering

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3. Click Run to restart it. Chapter 3: Manage the Domain Manage DNS Resource Records Domain Name System (DNS) is a naming system that facilitates the exchange of data between computers over the Internet and other networks. It is mainly used to translate easyto-memorize domain names (e.g., "pc1.syno.local") into corresponding IP addresses (e.g., "192.168.1.5"). This function is essential for maintaining Synology Directory Server's domain service. A/AAAA Resource Records A and AAAA are both DNS resource records for resolution between domain names and IP addresses. A records translate domain names into 32-bit IPv4 addresses; AAAA records resolve domain names into 128-bit IPv6 addresses. DNS Auto Registering When a client successfully joins the domain created by Synology Directory Server, the server will automatically register or update an A resource record (and an AAAA resource record if IPv6 is enabled) to the DNS service on DSM, mapping the hostname of the client to an IP address. Limitations: • DNS auto registering cannot be disabled. • Naming rules of domain clients: Only letters (a - z, A - Z), numbers (0 - 9), and hyphens (-) are allowed. • On Windows 7 or 10: Re-login or restart is necessary if the hostname or IP address is changed. • On DSM or SRM: Re-login or restart is not necessary if the hostname or IP address is changed. The resource records will not be updated. 16

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16
Chapter 3: Manage the Domain
3. Click
Run
to restart it.
Manage DNS Resource Records
Domain Name System (DNS) is a naming system that facilitates the exchange of data
between computers over the Internet and other networks. It is mainly used to translate easy-
to-memorize domain names (e.g., "pc1.syno.local") into corresponding IP addresses (e.g.,
"192.168.1.5"). This function is essential for maintaining Synology Directory Server's domain
service.
A/AAAA Resource Records
A
and
AAAA
are both DNS resource records for resolution between domain names and IP
addresses. A records translate domain names into 32-bit IPv4 addresses; AAAA records resolve
domain names into 128-bit IPv6 addresses.
DNS Auto Registering
When a client successfully joins the domain created by Synology Directory Server, the server
will automatically register or update an A resource record (and an AAAA resource record if IPv6
is enabled) to the DNS service on DSM, mapping the hostname of the client to an IP address.
Limitations:
• DNS auto registering cannot be disabled.
• Naming rules of domain clients: Only letters (a - z, A - Z), numbers (0 - 9), and hyphens (-)
are allowed.
• On Windows 7 or 10: Re-login or restart is necessary if the hostname or IP address is
changed.
• On DSM or SRM: Re-login or restart is
not
necessary if the hostname or IP address is
changed. The resource records will not be updated.