SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aplus-rdp-port

Which port does Remote Desktop Protocol (RDP) use by default?

Port 3389 is the Remote Desktop port.

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  1. 445
  2. 3389 ✔
  3. 22

Why: RDP uses port 3389. Port 22 is SSH and 445 is SMB file sharing. All three are on the A+ Core 1 port list, so techs should know them by heart.

Huh, didn't know that: The IANA registry lists port 3389 for both TCP and UDP under the name 'MS WBT Server'.

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References

Answer: 3389. RDP uses port 3389. Port 22 is SSH and 445 is SMB file sharing. All three are on the A+ Core 1 port list, so techs should know them by heart.

  1. IANA Service Name and Transport Protocol Port Number Registry CSV www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.csv
    ms-wbt-server,3389,tcp,MS WBT Server
    Checked 2026-10-11.
  2. IANA Service Name and Transport Protocol Port Number Registry CSV www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.csv
    ms-wbt-server,3389,udp,MS WBT Server
    Checked 2026-10-11.

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