<s>
nsupdate	B-Protocol
is	O
a	O
computer	O
network	O
maintenance	O
utility	O
used	O
by	O
network	O
administrators	O
to	O
instruct	O
the	O
name	B-Protocol
server	I-Protocol
of	O
a	O
DNS	B-Protocol
zone	O
to	O
update	O
its	O
database	O
.	O
</s>
<s>
The	O
name	B-Protocol
server	I-Protocol
might	O
be	O
local	O
to	O
a	O
domain	O
or	O
,	O
with	O
appropriate	O
authentication	O
and	O
permission	O
provided	O
by	O
DNSSEC	B-Protocol
,	O
an	O
internet	O
name	B-Protocol
server	I-Protocol
.	O
</s>
<s>
BIND	B-Protocol
8	O
and	O
later	O
supports	O
this	O
feature	O
.	O
</s>
