On Thu, Mar 09, 2023 at 12:47:14PM +0100, Daniele Bonini wrote: > > I'm wondering if there is any chance to change the default > listening port for sftp-server. > > NB: I'm using it on my Linoox VPS but I see from the man > a given OpenBSD 2.8 port origin.
it is indeed possible to change the listening port. It's all in the man page. My immediate question would be, why would you want to? For a truly unhelpful interlude, I offer [Thu Mar 09 13:07:40] peter@skapet:~$ grep sftp /etc/services sftp 115/tcp or on a nearby mac, [Thu Mar 09 13:08:14] peter@Peters-MacBook-Pro:~$ grep sftp /etc/services sftp 115/udp # Simple File Transfer Protocol sftp 115/tcp # Simple File Transfer Protocol utsftp 2529/udp # UTS FTP utsftp 2529/tcp # UTS FTP which hints strongly at the historical "Simple File Transfer Protocol", described in RF913, dated September 1984 (and it is likely not what you want. At all). For the actual steps involved in setting up your sshd with sftp-server, this guide looks at first blush fairly sane: https://linuxhandbook.com/sftp-server-setup/ Further to the "why would you want to?" issue, I offer this from the Hail Mary Cloud cycle: https://bsdly.blogspot.com/2013/02/theres-no-protection-in-high-ports.html -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team https://bsdly.blogspot.com/ https://www.bsdly.net/ https://www.nuug.no/ "Remember to set the evil bit on all malicious network traffic" delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.
