Create a Linux User with non-interactive shell - KodeKloud

non-interactive shell.md

The System admin team of xFusionCorp Industries has installed a backup agent tool on all app servers. As per the tool's requirements they need to create a user with a non-interactive shell.Therefore, create a user named mark with a non-interactive shell in the app02 server

Click on ✔ and Do Task Again

Solution:-

SSh acording to Task

ssh tony@stapp01 ## AppServer 1 Pass= Ir0nM@n
### OR
ssh steve@stapp02 ## Appserver 2 Pass = Am3ric@
### OR
ssh banner@stapp03 ## AppServer 3 Pass = BigGr33n

Replace user Name Acording To Task

sudo adduser user -s /sbin/nologin
cut -d: -f1 /etc/passwd

It's sudo adduser user -s /sbin/nologin instead that sudo adduser user -s /sbin/nologin/

I tried creating the user with the above command but my task failed and the task not complete pops up.

sudo adduser mark -s /sbin/false

or like I did: sudo adduser mark then sudo vi /etc/passwd and then changed the ending for the mark user from /sbin/bash to /sbin/false.

• difference between false and nologin: https://unix.stackexchange.com/questions/10852/whats-the-difference-between-sbin-nologin-and-bin-false
• https://unix.stackexchange.com/questions/4676/creating-a-user-who-cannot-get-an-interactive-shell

Where did you get server credentials ?

Server Name | IP | Hostname | User | Password

stapp01 | 172.16.238.10 | stapp01.stratos.xfusioncorp.com | tony | Ir0nM@n
stapp02 | 172.16.238.11 | stapp02.stratos.xfusioncorp.com | steve | Am3ric@
stapp03 | 172.16.238.12 | stapp03.stratos.xfusioncorp.com | banner | BigGr33n

Server Name | IP | Hostname | User | Password

stapp01 | 172.16.238.10 | stapp01.stratos.xfusioncorp.com | tony | Ir0nM@n stapp02 | 172.16.238.11 | stapp02.stratos.xfusioncorp.com | steve | Am3ric@ stapp03 | 172.16.238.12 | stapp03.stratos.xfusioncorp.com | banner | BigGr33n

How did you find this information? @Jkudjo

it was in the introductory. @wdiazplus i mean the project brief

[sudo] password for banner:
how to find password?

the password and everything is in the wiki page in top left

that password does not work

My proposition was : useradd -Mr -s /usr/sbin/nologin LOGIN
RTFM (man useradd) ;)

This is how I created mine and it worked finally after several tries.
ssh into the server specified.
e.g. ssh tony@stapp01
enter the passwd for tony;
now create user with no interactive shell
sudo useradd --shell /bin/false john

check to see if the user created has no interactive shell, should look like this; /bin/false instead of /bin/bash

use this command to check:
cat /etc/passwd

Having some background of Linux commands is of great help.
First ssh user@ with server name or ip address
input password for the particular user as provided
once you login: ls /home to check the existing users
sudo su to switch to root adduser

Yeah. I faced same issue too but i am able to resolve it using your guide. Thank you, it was very much helpful

how to check for if i have successfully added the user ?