In that case how about other entries from same zone? I m talking about any
consequences on static entries or the ones which I dont want to me dynamic.
On 23 Jul 2013 16:45, "Kumar, Naveen, Vodafone Group" <
naveen.kuma...@vodafone.com> wrote:
>
>
> Manish,****
>
> ** **
>
> You can configure the zone as dynamic, this way it can start taking
> nsupdates,****
>
> Upon failed TCP monitor by nagios, it can fire nsupdate command and update
> the A record accordingly.****
>
> ** **
>
> Regards,****
>
> Naveen****
>
> ** **
>
> *From:* bind-users-bounces+naveen.kumar=cw....@lists.isc.org [mailto:
> bind-users-bounces+naveen.kumar=cw....@lists.isc.org] *On Behalf Of *Manish
> Rane
> *Sent:* Tuesday, July 23, 2013 4:30 PM
> *To:* Mark Andrews
> *Cc:* bind-us...@isc.org
> *Subject:* Re: Can I change the zone file from command line?****
>
> ** **
>
> Well, I am trying to configure DNS System Monitoring stuff with Nagios
> plugins. This monitor the server status and if any of th link fails remove
> the said IP from zone and reload the zone. This entry would have low TTL so
> that traffic would be routed to new entry instantly.
>
> Lets say I have two ISPs terminated on my firewall and www.example.comwith
> private IP 172.16.3.10 is natted with 1.2.3.4 and 5.6.7.8 with TTL
> value 300****
>
> Nagios plugin check_tcp would monitor those links or IPs on port 80 and if
> any of the link fails I can have by any mean edit the zone file and remove
> the IP associated with failed link so that traffic would never reach to
> that IP.****
>
> Upon recovery the plugin will show the result GREEN and I can again have
> the A record added in zone file, thus reload the zone. Due to the low TTL I
> believe there shouldn't be any issue for populating those changes faster.
> ****
>
> What say guys?
>
> ****
>
> ** **
>
>
> ****
>
> --------------------------------------------------------------------------
> Thanks and Regards,
> Manish R****
>
> ** **
>
> On Tue, Jul 23, 2013 at 11:46 AM, Mark Andrews <ma...@isc.org> wrote:****
>
>
> In message <
> can3um4yrt+t7cp2ezywq-rm5ewx3-ygok9vkxvug4qbxcbp...@mail.gmail.com>****
>
> , Mike Hale writes:
> > This seems pretty straight forward.
> >
> > Use your standard bash tools to modify the file when necessary, then
> > you should simply be able to call rndc reload ZONENAME in the script.***
> *
>
> Though why one would want to do this rather than just updating the
> zone using DDNS is beyond me. It's not like DDNS can't be made
> secure by using TSIG.
>
> Normalize the zone file using named-checkzone.
> Use awk or similar to change the relevent entries and update the SOA
> serial.
> Use named-checkzone to confirm that the resulting file is still valid then
> if it is rename it and reload the zone.
>
> named-checkzone -D -q zone file |
> awk '$1 == "server" && $4 == "A" { print $1, $2, $3, $4, NEWIP}
> $4 == "SOA" { $7 = $7 + 1; print }' > temp
> named-checkzone -q zone temp && mv temp file && rndc reload zone
>
> Mark****
>
>
> > On Mon, Jul 22, 2013 at 10:28 PM, Mihamina Rakotomandimby
> > <miham...@rktmb.org> wrote:
> > > Hello,
> > >
> > > I did not catch what you're trying to achieve.
> > > Please give more details.
> > >
> > >
> > > On 2013-07-23 08:25, Manish Rane wrote:
> > >
> > > Hi Folks,
> > >
> > > Wondering if I can edit/change the static zone file as a result of
> certain
> > > bash script. Well, I am trying to write a script which will monitor the
> > > server on certain ports and it if fails to connect to the server it
> will
> > > delete or add the entry from zone file so that traffic will be routed
> to
> > > another server, possible?
> > >
> > > OR does any one aware of such solution available in open source?
> > >
> > >
> > >
> > > _______________________________________________
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> > >
> > >
> > >
> > > --
> > > RMA.
> > >
> > >
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> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org****
>
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