Pool Clusters
## Clusters
I have a couple questions about the pool clustering.

I have 2 slave servers and 1 master server, I want maximum security.
Slave will be running stratum port only and relay all information to master.
On master side, it will have the persistent db, coin daemons, handle payments, and host a site.

### Questions

1. Is this a good configuration?
2. What should be the characteristics of the server slave and the master server ?
3. How can I secure the connection between a slave and coin daemons, like parity ?
4. What configuration do you use?