Establishing Password-less Connection between the SBC and the Remote Server

To establish a password-less connection between the SBC and the remote server:

1. Generate key on the remote server:

   bats12:~> ssh-keygen

   generating public/private rsa key pair.

2. Enter the file in which to save the key (/home/<username>/.ssh/id_rsa): testingkey

3. Enter passphrase (leave it empty if there is no passphrase).

4. Enter same passphrase again, and your identification will be saved in testingkey.
   Your public key has been saved in testingkey.pub.
   
   The key fingerprint is:

   SHA256:uxVaJoaxAPGaWnlLd9Wwfja1R4WU13e2XUvcInwjmMI <username>@bats12

   The key's randomart image is:

   The key's randomart image is:
   
   +---[RSA 2048]----+
   |  o.   .  .+ .oo+|
   |   o    E o++ *oX|
   |    o .  .o .+o=O|
   |   + . + o   . =.|
   |  = o + S = + . .|
   | o o o o * + . . |
   |.   .   o .      |
   |         o       |
   |        .        |
   +----[SHA256]-----+

5. On the remove server, edit /.shh/config file as shown below. 

   Note

   The keytest file is the one that is already installed on the SBC under authorized keys.

   vi ~/.ssh/config
    
   Host 10.34.194.36
       Port 2024
       User linuxadmin
       IdentityFile /home/<username>/keytest

6. Using ssh-copy-id, copy the key to the SBC:

   bats12:~>ssh-copy-id -i testingkey.pub -f linuxadmin@10.34.194.36
   /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "testingkey.pub"

   Number of key(s) added is 1.

7. Log into the machine with "ssh 'linuxadmix@10.34.194.36'" and check to ensure that only the proper key(s) were added. 

8. On the SBC, check that no password prompt appears.

   bats12:~> ssh linuxadmin@10.34.194.36
   Last login: Mon Dec 17 01:40:33 EST 2018 from 10.54.81.11 on ssh
   Sonus ConnexIP OS 06.02.00-R000 GNU/Linux
   linuxadmin@vsbc1:~$ exit
   exit