Layer 4 vs Layer 7 Reverse Proxies: Using HAProxy to front Web Services (for IPv4 to v6 Transition)

A common challenge in web design and network architecture is grouping multiple web services in a single host, or behind a single IP address. This is especially true with IPv4 due to the scarcity of addresses. The solution to this is a reverse proxy or load balancer. Essentially, this takes connections from clients and dispatches them to the correct server based on the domain name or URL in the request. In this video, I'm going to explain what a layer 4 or layer 7 load balancer even is, and setup a layer 4 example using HAProxy. So come along on this adventure! Blog post with all of the config references: https://www.apalrd.net/posts/2023/network_haproxy/ Feel free to chat with me more on my Discord server: https://discord.gg/xJsaEukAr4 If you find my content useful and would like to support me, feel free to here: https://ko-fi.com/apalrd #networking #homelab #ipv6