Linux permissions

U – user G – Group O – others

Access types in linux

r - read -  4
w - wirte - 2
x - excute -1

- file
d - directory

ugo
- rwx rw- r--

7 5 0
rwx r-x ---

users - ram , hari, kirshna , deva

Groups - dev, qa , stg 

dev - ram, hari 

qa - kirshna 

devops.txt --> ram dev 

chmod 755 filename or dir-name
chown owner:group filename or dir-name

set up Redhat ansible node

sudo useradd devops
sudo passwd devops
sudo usermod --append -G wheel devops

sudo visudo -f /etc/sudoers.d/devops

devops ALL=(ALL) ALL

su - devops

sudo whoami # verify user 

# allow PasswordAuthentication
sudo vi /etc/ssh/sshd_config.d/50-password-auth.conf
PasswordAuthentication yes

sudo systemctl restart sshd

Task

1. create redhat 8 and setup user with sudo permissions
2. add user ansible invermtory and try ping cmd

ANSIBLE_HOST_KEY_CHECKING=False ansible -i local-machine.host all -m ping -e ansible_password=ansible -e ansible_user=ansible