HTTP/HTTPS & TLS

Summary

The protocol underlying almost all web traffic, and TLS — the encryption layer securing it — understanding the TLS handshake and certificate basics matters for debugging connection and security issues.

How to Learn This

1Inspect a website's TLS certificate details in your browser.
2Learn the basic steps of a TLS handshake at a conceptual level.
3Understand why HTTPS is now a hard requirement for virtually any production service.

DNS

Load Balancers

More topics in Networking Fundamentals

OSI & TCP/IP Models IP Addressing & Subnetting DNS Load Balancers Firewalls & Security Groups Reverse Proxies (Nginx)VPNs & Private Networking Common Network Troubleshooting

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