AWS VPC Edge Routing Guide Part 0: Network and AWS Fundamentals — OSI, VPC, CIDR, ENI, Reverse Proxies, and the Core AWS Services You Need Before the Series
A primer that lands before the decision-tree posts. OSI 7-layer and L4/L7, VPC / Subnet / CIDR / AZ, ENI / EIP / Source NAT, HTTPS / TLS / mTLS / auth jargon, reverse proxies, and a one-page taxonomy of core AWS services — every concept the rest of the series leans on, gathered into one post.
