is a computer network maintenance utility used by network administrators to request 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.
This example removes the nameserver address record for oldhost
from domain example.com
and replaces it with a new address record with a 24 hour time to live (86,400 seconds). The new host's IP address
> server ns.mydns.com
> update delete oldhost.example.com. A
> update add newhost.example.com. 86400 A 192.168.254.117