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Networking — notes
The handshakes: TCP then TLS
Jul 2, 2026 · 7 min
The DNS resolution path, step by step
outline
HTTP/1.1 vs HTTP/2 vs HTTP/3
outline
L4 vs L7 load balancing
outline
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Networking
L4 vs L7 load balancing
unwritten
—
Outline
Note to self
Not written yet. This is the outline I am working from — it will be filled in as I go through the topic.
L4: connection routing, no payload inspection
L7: path and header routing, TLS termination, retries
Health checks, draining and sticky sessions
Where the client-side balancing option fits
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