Setting up an sftp server..

Establishing a sftp server with only access to sftp(no access to shell)

QuickGo

step1--Enable ssh

step2--turn firewall of on the port 22(or any static port you set for ssh)

step3--create users/groups and setting up passwords for created users

step4--create folders for the users to upload and download files( land on)(set permissions accordingly)

step5--Edit the sshd_config file to set the users permissions

step6--restart the sshd service

step7--login with your user..

Step by step procedures are as follows::::::

 (note:::here i am using ubuntu as my server)

--Step1

First install ssh (ignore if already installed)

use command:-

"apt-get install openssh-server"

--Step 2

Disable blocking by firewall on port 22 .(since it is the default port for ssh)

use command:

"ufw allow ssh"

--Step3

Now comes the main part,

Create users 

(here i created 5 users two in one group and two in other the 5th one in both)

now check whether they are created

now create groups,

use command:

"sudo addgroup groupname"

now add users to the group

                                         

to know in which group the user is ;

use command:

"groups username"

now set passwords for the users

--Step 4

creating directories 

(similarly i have created /sftp2 for groupb)

now open the directory and make a new directory inside it  for the user.

 now set owners for the directories

(any one of the user of the group can be the owner of the user directory )

(root should be the owner of /sftp directory where users land.)

now set the permissions for the directories 

"sudo chmod 755 /sftp"

"sudo chmod 755 /sftp2"

"sudo chmod 775 /sftp/landa"

"sudo chmod 775 /sftp2/land"

  

(one of the outcome)

--Step5

    Edit the sshd_config file

      open the file 

      "sudo nano /etc/ssh/sshd_config"

                              then edit as follows:

save and exit..

--Step6 

Restart sshd service

"sudo systemctl restart sshd.service"

--Step7

Congrats!!sftp is configured for these users..

now check the connection by loging in

now try to login with a client system

What happens if we use these users for ssh?

Using a sftp client (firezilla)

after using the client we can see on our server which user added what file ..

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