nsupdate is a computer network maintenance utility used by network administrators to instruct the name server of a DNS zone to update its database. The name server might be local to a domain or, with appropriate authentication and permission provided by DNSSEC, an internet name server.
BIND 8 and later supports this feature.
nsupdate(8)– Linux Administration and Privileged Commands Manual
- nsupdate: Quick and Painless Dynamic DNS
- NSUPDATE HOWTO by Stef Caunter, Feb 2003. Updated Jan 28, 2005.
- Debian Administration System Administration Tips and Resources