I included the RNDC key from bind, located at /etc/bind/rndc.key by default, and associated it with the appropriate zone for DDNS updates. nsupdate Clients are using the server for lookups, forwarding is happening like a champ, caching looks like its working and my manually created A records resolve as well. Severity: Medium. From this point on you will need "bind" for DNS forwarding and internal hostnames. BIND 9 is an implementation of the Domain Name System (DNS) protocols. This topic provides instructions for configuring the allow-update option so DNS can receive dynamic updates. This statement is mutually exclusive with update-policy and applies to master zones only. Expand the server name > right-click on IPv4 > select Properties > DNS tab. Generally speaking, dynamically updated hostnames/A records allow anyone to update them, but static ones do not, but either way, this behavior is configurable. This version of BIND 9 "exports" its internal libraries so that they can be used by third-party applications more easily (we call them "export" libraries in this document). [admin1]# systemctl enable named. Dynamic DNS with bind and nsupdate · dnns.no With bind9 it is easily possible to setup your own dynamic DNS service. The address or addresses matched . If the server receiving an authorized update message is not the primary master . Log onto your CentOS server with an account that has administrative privileges. B IND9 dynamic updates allow remote servers to add, delete, or modify any entries in my zone file. . BIND 8 also supports the dynamic update facility described in RFC 2136. To make a zone dynamic, you must add the keyword allow-update to that zone's stanza in the /etc/named.conf file. The following describes how to set up a basic BIND installation you can use as Samba AD DC back end. PDF Configuring Dynamic DNS with BIND 9 - Don Crawley, Author