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Behavior Quote by Jon Postel

“In general, an implementation must be conservative in its sending behavior, and liberal in its receiving behavior.” quote by Jon Postel
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“In general, an implementation must be conservative in its sending behavior, and liberal in its receiving behavior.”

Jon Postel

About This Quote

Source RFC 1122: Requirements for Internet Hosts – Communication Layers, 1989

Network protocols should send data cautiously but accept incoming data liberally to ensure robustness.

In simple terms: Send carefully, receive openly.

Key Takeaway

Design tolerant communication systems.

Themes

network design protocols robustness

Mood

technical analytical

Type

instructional practical

When to use this quote

  • building servers
  • handling client requests
  • managing data streams

Key Concepts

TCP/IP conservative sending liberal receiving

Questions to Reflect On

  • How do you balance safety and flexibility in data handling?
  • What risks arise from too much openness?
A Different Perspective

Overly liberal receiving can expose security risks.

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