TCP Flags

There might be more to TCP than you think.

Transmission Control Protocol Flags:

  1. URG (Urgent)
    • Process the packet before any other packets that are not flagged as urgent.
  2. ACK (Acknowledge)
    • Acknowledge receipt of a sequence number.
  3. PSH (Push)
    • The Packet should be processed immediately and should not be buffered.
  4. RST (Reset)
    • Resets connection
  5. SYN (Synchronize)
    • Request to open a TCP connection
  6. FIN (Finished)
    • The FIN flag indicates that the sender has no more data to send.

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One response to “TCP Flags”

  1. Lionel Overstreet Avatar

    There’s certainly a lot to learn about this topic. I really like all of the points you’ve made.