The feature you need to look for is GSLB. I’d Google opensource and GSLB. I saw a few projects that should give you the functionality you need.
On Mon, Jul 12, 2021 at 8:23 AM Dan Ritter <d...@randomstring.org> wrote: > Gokan Atmaca wrote: > > I want to do dns failover. There is no such feature in the bind > > service. It has RR feature but no Failover. I have 2 services. I want > > the A record to change automatically when one is inaccessible. Is > > there a tool you can recommend for this ? > > > > The most obvious way to do this is dynamic DNS updates. Set up your > servers to send a dynamic DNS update to your DNS server when they decide > that they are the new primary. > > Note that DNS TTL records are advisory, not mandatory, so it is > unlikely that all your traffic will switch over quickly to the > new primary. Losing connectivity for 3 minutes to 24 hours is > for various clients is more or less expected. > > -dsr- > >
