RRSIG Expired

[Stephane Bortzmeyer]

On Fri, Apr 01, 2011 at 05:24:57PM +0800,
 Paul Ooi Cong Jen <paulooi at takizo.com> wrote 
 a message of 266 lines which said:

> This file came with default bind installation

There is a zone file of in-addr.arpa with BIND? I strongly doubt
it. Anyway, check your named.conf: you must not declare in-addr.arpa
in a zone directive.

> Do we update the RRSIG manuall when its expired? 

You are not the manager of in-addr.arpa so do not touch it.