Create Key-Pair by each user, so login with a common user on SSH Server Host and work like follows.
# create key-pair
Generating public/private rsa key pair. Enter file in which to save the key (/home/debian/.ssh/id_rsa): # Enter or input changes if you want Created directory '/home/debian/.ssh'. Enter passphrase (empty for no passphrase): # set passphrase (if set no passphrase, Enter with empty) Enter same passphrase again: Your identification has been saved in /home/debian/.ssh/id_rsa Your public key has been saved in /home/debian/.ssh/id_rsa.pub The key fingerprint is: SHA256:H+lFm+3c93VekrLiFCYAwoWDUVs43s4JEze8wr8QzG8 email@example.com The key's randomart image is: ..... ..... debian@dlp:~$ll ~/.ssh total 8 -rw------- 1 debian debian 2655 Aug 17 13:48 id_rsa -rw-r--r-- 1 debian debian 574 Aug 17 13:48 id_rsa.pub
debian@dlp:~$mv ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys
Transfer the private key created on the Server to a Client, then it’s possible to login with Key-Pair authentication. Below is an example to connect from a linux shell. Continue reading “SSH Key-Pair Authentication” »