Architecture Considerations

Architecture

• Topics: performance, scalability, availability, reliability, cost, and ease of management.
• Separate Database Server (out of DMZ, on private network)
• Vertical scale: add more computing power
• Load Balancing (Reverse Proxy L7(application layer)) - distribute workload across multiple servers *HAProxy, NGiNX, Varnish
• (HA) High Availability Setup (infrastructure without a single point of failure)
• Access Control List (ACL) - are used to test some condition and perform an action (e.g. select a server, or block a request)
• Layer 4 Load Balancing (Transport Layer - forward based on IP Range and Port)
• Layer 7 Load Balancing (Application Layer - forward based on User Request path)