Steps

1. Login AWS and launch 3 Red Hat Instance (One Controller Node and 2 Target Node)

2. Log in to controller node and perform following steps:

• To update server : yum update -y

• Install ansible : yum install ansible-core

• update ansible inventory by copying public or private ip of target node

• update /etc/ansible/host file : public-ip ansible_user=<user> ansible_password=<password>

• do ansible all --list-host , you will see the hosts(target node ips)

• In controller node do : ansible-config init --disabled > /etc/ansible/ansible.cfg

• vim /etc/ansible/ansible.cfg and edit , save this file by doing this

    host_key_checking=False
  

3. Now login one of the target node and perform following steps:

• vim /etc/ssh/sshd_config.d/50-cloud-init.conf and write and save file with

    PasswordAuthentication yes
  

• vim /etc/ssh/sshd_config and edit , save

    PermitRootLogin yes
  

• restart sshd service

    systemctl restart sshd
  

• Change root password

    passwd root
  

4. Now repeat the 3rd process with other target node

5. Login controller node and execute the below step to run any linux command on single , multiple or all hosts

ansible all -m command -a <linux-command>

Thank you for reading ❣️