Re: [SLE] Looking for a book that describes highly available DHCP setups

Joachim Schrod wrote:

> dhcpd has clustering capability included, I want to use that
> capability.

Ah, I wasn't aware of that.

> Linux-HA is not sufficient, as this doesn't synchronize the DHCP
> leases between the clustering nodes. I.e., in the case of failovers
> the new node would not know about leases of the previous node any
> more. Usage of ISC dhcpd's failover capabilities avoids that problem.

Actually, that's where drbd comes in. It's essentially a RAID1 over the
network.

> As I wrote, I know about the technology already. I am interested in
> in-depth treatment of pitfalls and strategies for implementation, in
> the stuff that's not elaborated in product manuals and IETF RFC
> drafts.

Sorry, like I said I wasn't even aware of the clustering abilities of
dhcp - we simply use Linux-HA, which does the trick.


/Per Jessen, Zürich


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