How to sync a Linux secondary DHCP server?
perl-list at network1.net
Wed Aug 1 13:32:02 UTC 2018
You could do that as long as there are no dynamic leases (ie: everyone has a fixed-address or similar).
You would want to make sure that you didn't have:
in the config file as that would cause the servers to NAK each other's traffic (I think it still would with fixed-address).
> From: "Sandra Schlichting" <littlesandra88 at gmail.com>
> To: "Users of ISC DHCP" <dhcp-users at lists.isc.org>
> Sent: Wednesday, August 1, 2018 9:22:26 AM
> Subject: Re: How to sync a Linux secondary DHCP server?
> > If, for example, you added fixed reservations using omapi, then you would
> > need to register these same configuration with both dhcp servers.
> > This is the only way to ensure there is consistent configuration on both
> > servers.
> > The leases files are different on the two servers, so you can't just copy
> > the leases file from one server to the other.
> My thought were to have two standalone dhcp servers. No failover, no
> omapi. I would then rsync/scp the reserverations to the other when I
> make changes.
> Of course this means, the leases on each would be different, and that
> is my question. What would happen if two identical dhcp servers with
> identical reservations offer the same IP's?
> The motivation would be to get a simple two dhcp server setup without
> using the builtin failover.
> dhcp-users mailing list
> dhcp-users at lists.isc.org
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