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The (uncomplicated) story of getting SSH port 22, from its author

February 16, 2024 — Nico Cartron

Tatu Ylonen, SSH's author, has a fascinating story about how he managed to get port 22 for SSH.

In fact, it's an uncomplicated one, since back in 1995, things were a lot easier as the Internet was not exactly the size it is today.

All Tatu had to do was sending an email to IANA and ask for a port, preferably 22 (as it was in between FTP's 21 and Telnet's 23), and the day after he got an email from Joyce K. Reynolds (who co-authored RFCs for Telnet, FTP and POP) where she confirmed Tatu that he got assigned port 22 for SSH.

Tags: IT

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