Re: DNS Serial Number Re: [SLUG] search and replace

[Dean Hamstead <zort@nospam.penrithcity.nsw.gov.au>]

Right...
so by the look of things the serial number is just the date in reverse?
eg YYYYMMDD ??

Dean

Peter Samuel wrote:
> 
> On Wed, 28 Jun 2000, Dean Hamstead wrote:
> 
> > >
> > > DO NOT FORGET TO UPDATE THE DNS SERIAL NUMBER!
> > >
> >
> > How and why should this be done?
> 
> On the assumption that you are running bind, its config files have a
> serial number. THat number is used when doing things like zone
> transfers. If the secondary zone sees that the serial number for the
> current data is the same as last time, then it doesn't bother to do
> the transfer because it assumes nothing has changed.
> 
> So, if you change dns details, you MUST increase the serial number so
> that your secondaries know that there is new data.
> 
> There is a much better (and more complete) explanation of all this in
> the O'Reilly BIND book.
> 
> Regards
> Peter
> ----------
> Peter Samuel                                peter@nospam.eserv.com.au
> Technical Consultant                        or at present:
> eServ. Pty Ltd                              Peter.Samuel@nospam.ind.tansu.com.au
> Phone: +61 2 9206 3410                      Fax: +61 2 9281 1301
> 
> "If you kill all your unhappy customers, you'll only have happy ones left"
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