Mark, Good point, I'd completely forgotten the value of a shorter TTL record for cases like this.
On Tue, Nov 26, 2013 at 09:56:45AM +1100, Mark Andrews wrote: > > In message > <cab9egsx4vd4zmaaty_r_8kdxcwswp1ig7wssek+xg-k83_o...@mail.gmail.com> > , =?UTF-8?B?UGF3ZcWCIENoLg==?= writes: > > Hi list, > > > > I would like to write script that change two entry in my zone file: SOA and > > A record. > > > > I have 2 web site: mail site site1.tld and backup site site2.tld. Script > > should monitor site1.tld and when site is unavailable it should change A > > record in zone file to indicate to site2.tld. If site1.tld is available > > again then A record should indicate to it. > > Script should change SOA serial number. > > > > Please help with writing a script. > > > > pch0317 > > > > #!/bin/sh > while : > do > if ping -c 5 -t 5 1.2.3.4 > then > nsupdate << EOF > update del host.example.net A > update add host.example.net 30 A 1.2.3.4 > send > EOF > elif ping -c 5 -t 5 1.2.3.5 > nsupdate << EOF > update del host.example.net A > update add host.example.net 30 A 1.2.3.5 > send > EOF > else > nsupdate << EOF > update del host.example.net A > update add host.example.net 30 A 1.2.3.4 > update add host.example.net 30 A 1.2.3.5 > send > EOF > fi > sleep 60 > done > > > > -- > Mark Andrews, ISC > 1 Seymour St., Dundas Valley, NSW 2117, Australia > PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users --- Brian R Cuttler brian.cutt...@wadsworth.org Computer Systems Support (v) 518 486-1697 Wadsworth Center (f) 518 473-6384 NYS Department of Health Help Desk 518 473-0773 _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
