It requires lots of knowledge and elbow grease. Your security concerns also greatly depend on what services you plan to make publicly available. The most impor

It requires lots of knowledge and elbow grease. Your security concerns also greatly depend on what services you plan to make publicly available. The most important basic groundwork is proper firewall setup and network segmentation. Your personal LAN should not be directly routable from your public services. Also ensure that security updates are applied ASAP. Start learning about hypervisors and proper VM orchestration. The best way to get started IMO is via a hybrid approach. Use cloud resources where appropriate to supplement your local infrastructure.