How to setup sftp (open ssh) server in Debian 11 Linux system

 

openssh-server setup in Debian 11

Install open-ssh server:

sudo apt install -y openssh-server

Start sftp server:

systemctl start sshd

Check status of sftp:

systemctl status sshd

Create a base directory:

sudo mkdir /srv/sftp

Create a group:

sudo groupadd sftpusers

Add a linux to sftp group - sftpgroups:

sudo useradd -G sftpusers -d /srv/sftp/limuxhelp1 -s /sbin/nologin linuxhelp1

Add password for user:

sudo passwd linuxhelp1

Enter password two times and press enter

Now enable the password authentication in sshd configuration:

sudo vi /etc/ssh/sshd_config

    After opening the file search for "PasswordAuthentication yes". It should be uncommented.

Now have to add Rule for the users in secure FTP users group:

sudo vi /etc/ssh/sshd_config

Add below lines in the last of the file:

Match Group sftpusers    

X11Forwarding no

AllowTcpForwarding no

ChrootDirectory /srv/sftp   #<your custom directory>

ForceCommand internal-sftp

Now restart the sshd server:

Systemctl restart sshd

Check status of sftp:

systemctl status sshd

Now test the server:

~# sftp linuxhelp1@192.168.1.226  #<Here add your system ip address>