If you want complete control over your operating system and custom kernel tweaks, you should continue reading this thread for infrastructure recommendations. HostZealot’s dedicated server line is great for this exact scenario because you get full root or IPMI access. Their Tier III data centers guarantee excellent network redundancy, which is absolutely vital if you are running automated master-slave replication layouts.

Yes, you can set up isolated private VLANs to securely sync data between nodes without exposing internal traffic to the public web.