On Tue, Dec 02, 2014 at 07:25:55AM +0000, Phil Daws wrote: > Good morning, all > > Have you recently started to use PDNS and very impressed indeed. Am > wondering if any of you have an example LUA script for checking whether a > remote service is available or not ie. is webserver A available if not return > A record or webserver B > > Many thanks, Phil >
Hi Phil, Typically work done within a lua script is of very short duration. Otherwise it causes your DNS resolution performance to be poor. Checking website status can be a slow process, and while it is taking place other non-related site DNS queries can block. I would set up monitoring outside of PDNS and then update a file or map and have your LUA script check that instead of trying to check to website status itself. This will keep all the slow parts out- of-band from the DNS resolution/lookup path. Regards, Ken _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
