How to I configure DNS to point to the cluster and not each individual node in the cluster?

[CP2]

Is the name that I gave the cluster considered it's FQDN? So would I create a DNS record that points to the cluster's hostname? We had our network guy create a VIP with our two devices in it. Should the DNS record use the VIP as the IP address in with the DNS record points to? Am I making sense here?

[Ken Stieers]

The cluster name doesn't matter for anything other than your use...

Mail should flow to the names/ips of the listener interfaces

Remember, clustering of ESA's is just configuration replication...not failover/HA.

[CP2]

Oh OK! Thanks for clarifying. I was under the assumption that clustering was used for failover. Is it more used for load balancing then? And with that being said, how would I configure it for that? How can I evenly distribute the message flow between the two devices?

[Ken Stieers · Accepted solution]

Load balancing is handed by how you get the traffic to the boxes.

Externally, most systems respect the weights you put in your MX records.

Internally your mail system may round-robin between the ips configured in the outbound connector, check how they do it.

You could also use a load balancer...

[CP2]

Thanks for the response. I appreciate it.