Skip to main content
Unix & Linux

Return to Question

added 20 characters in body
Source Link
dungarian
dungarian
  • 465
  • 4
  • 14

Question

When I start SSH server, why does my Debian automatically start the SFTP server as well? Why - why is it design in such way?

Environment:

  • Linux 5.10.0-14-amd64 Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux
  • ssh.service - OpenBSD Secure Shell server

Background

Today I realized:

  • when I want to handle http requests, I start a web server - Apache(2), Node.js, etc.
  • when I want to handle SSH, I start an SSH server
  • when I want to handle SFTP... Debian already started SFTP server for me

So I researched, and according to this post 378313/default-sftp-server-in-debian-9-stretch, I found out SFTP is started as "part of (Open)SSH" which makes perfect sense but also feels strange for reasons such as separation of concerns.

Unlike Windows, I have never felt Debian doing something unexpected or extra on my behalf. But today I felt it - after all I said systemctl restart ssh, not systemctl restart ssh-and-also-ftp (the latter command is made-up). 

As I am new to LinuxUnix/Linux and its philosophy, I would appreciate if there are any good explanations for this situation.

Question

When I start SSH server, why does my Debian automatically start the SFTP server as well? Why is it design in such way?

Environment:

  • Linux 5.10.0-14-amd64 Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux
  • ssh.service - OpenBSD Secure Shell server

Background

Today I realized:

  • when I want to handle http requests, I start a web server - Apache(2), Node.js, etc.
  • when I want to handle SSH, I start an SSH server
  • when I want to handle SFTP... Debian already started SFTP server for me

So I researched, and according to this post 378313/default-sftp-server-in-debian-9-stretch, I found out SFTP is started as "part of (Open)SSH" which makes perfect sense but also feels strange for reasons such as separation of concerns.

Unlike Windows, I have never felt Debian doing something unexpected or extra on my behalf. But today I felt it - after all I said systemctl restart ssh, not systemctl restart ssh-and-also-ftp (the latter command is made-up). As I am new to Linux I would appreciate if there are any good explanations for this situation.

Question

When I start SSH server, my Debian automatically start the SFTP server as well - why is it design in such way?

Environment:

  • Linux 5.10.0-14-amd64 Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux
  • ssh.service - OpenBSD Secure Shell server

Background

Today I realized:

  • when I want to handle http requests, I start a web server - Apache(2), Node.js, etc.
  • when I want to handle SSH, I start an SSH server
  • when I want to handle SFTP... Debian already started SFTP server for me

So I researched, and according to this post 378313/default-sftp-server-in-debian-9-stretch, I found out SFTP is started as "part of (Open)SSH" which makes perfect sense but also feels strange for reasons such as separation of concerns.

Unlike Windows, I have never felt Debian doing something unexpected or extra on my behalf. But today I felt it - after all I said systemctl restart ssh, not systemctl restart ssh-and-also-ftp (the latter command is made-up). 

As I am new to Unix/Linux and its philosophy, I would appreciate if there are any good explanations for this situation.

Source Link
dungarian
dungarian
  • 465
  • 4
  • 14

Why do I not need to start an SFTP Server ( why does SSH automatically start SFTP )?

Question

When I start SSH server, why does my Debian automatically start the SFTP server as well? Why is it design in such way?

Environment:

  • Linux 5.10.0-14-amd64 Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux
  • ssh.service - OpenBSD Secure Shell server

Background

Today I realized:

  • when I want to handle http requests, I start a web server - Apache(2), Node.js, etc.
  • when I want to handle SSH, I start an SSH server
  • when I want to handle SFTP... Debian already started SFTP server for me

So I researched, and according to this post 378313/default-sftp-server-in-debian-9-stretch, I found out SFTP is started as "part of (Open)SSH" which makes perfect sense but also feels strange for reasons such as separation of concerns.

Unlike Windows, I have never felt Debian doing something unexpected or extra on my behalf. But today I felt it - after all I said systemctl restart ssh, not systemctl restart ssh-and-also-ftp (the latter command is made-up). As I am new to Linux I would appreciate if there are any good explanations for this situation.