9 - Linux SSH Authentication
Task
The system admins team of xFusionCorp Industries has set up some scripts on jump host that run on regular intervals and perform operations on all app servers in Stratos Datacenter. To make these scripts work properly we need to make sure the thor user on jump host has password-less SSH access to all app servers through their respective sudo users (i.e tony for app server 1). Based on the requirements, perform the following:
Set up a password-less authentication from user thor on jump host to all app servers through their respective sudo users.
Solution
# generate ssh key
thor@jump_host ~$ ssh-keygen
# copy to hosts
thor@jump_host ~$ ssh-copy-id tony@stapp01
thor@jump_host ~$ ssh-copy-id steve@stapp02
thor@jump_host ~$ ssh-copy-id banner@stapp03
# check
thor@jump_host ~$ ssh tony@stapp01
[tony@stapp01 ~]#