notify

[Jim Reid]

>>>>> "Andreas" == Andreas Gietl <gietl at gietl.com> writes:

    Andreas> is there nothing in the ndc that has the same effect than
    Andreas> a SIGHUP?

Maybe. But what effect does SIGHUP have and how can anyone be certain
that this signal always has the same effect on all versions of BIND?

Just use ndc and its far richer command set. Managing processes by
sending signals to them is crude, clumsy and limiting. For example, if
all that's changed is one zone file or a statement in named.conf
forcing a global reload of everything - stat()ing every master zone
file and SOA checking every slave zone - by sending the name server
SIGHUP is ridiculous overkill. With ndc, you could just do an
incremental reload ("ndc reload changed-zone-name") or you could get
the name server to re-read named.conf by typing "ndc reconfig". This is
a Big Win, especially on name servers that have lots of zones. Oh and
the UID running ndc doesn't have to be the same as the UID tht runs
the name server. That flexibility does not exist with signals.