Managing User and Group Accounts

Use the groupadd command with the -r option to create the group testers:

groupadd -r tester

Use the command useradd with the -G option to spection the tester group:

useradd -G tester test1

Set a temporary password (that the user will have to change the first time they log in):

echo Temp@$$ | passwd --stdin test1

We could also set one manually by just running passwd test1 and typing/confirming a password by hand.

Lock and unlock the account using the usermod command.

usermod -L test1
tail -n1 /etc/passwd /etc/shadow
usermod -U test1

We can run tail -n1 /etc/passwd /etc/shadow to see if it got set.

And to make test1 change their password on the next login, run:

chage -d0 test1

Verify the account and groups using the id command.

id test1

Use the usermod command with the -aG options to add cloud_user to the tester group:

usermod -aG tester cloud_user

We can run id cloud_user to check our work and see if the user is in the group now.

Create the directory:

mkdir /usr/local/test_scripts

Make sure it's owned by cloud_user, and the tester group:

chown cloud_user:tester /usr/local/test_scripts

Give the group write permissions, and revoke any permissions from anyone else:

chmod g+ws,o-rx /usr/local/test_scripts

As a best practice, verify your work. Become the new user, get into the new directory, and create a couple things to look at:

su - test1
cd /usr/local/test_scripts
mkdir dir1
touch file1
ls -l