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Ssh between ansible control node with that of target

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The document outlines the steps to set up SSH key-based authentication between an Ansible control node and two target nodes to enable Ansible to configure the target nodes without passwords. It involves generating public/private key pairs on the control node, adding the public key to each target node's authorized_keys file, and restricting password logins for security.

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Objective As a DevOps Engineer I want to set up Configuration Management System using Ansible. I have Two Target Machine and One Ansible Control node. I want to setup SSH between Ansible Control node with that of Target Node
Ansible-Control-Node Private-Key Public-Key Target-Node-1 Private-Key Public-Key Target-Node-2 Private-Key Public-Key //copy // whoare allowedtoaccessme Ansible-Control-Node Public-Key // whoare allowedtoaccessme Ansible-Control-Node Public-Key authorized_keys authorized_keys
1. Generate your keys (Ansible Control Node // It wants to access target) //Login to Ansible Node sudo su // generate the keys ssh-keygen -t rsa //i.e it will generate 2 files id_rsa.pub(public key) and id_rsa(private key) at location /root/.ssh/ 2. Create a file "authorized_keys" at the root user's .ssh directory . Change the .ssh directory mode to 700(executable) and authorized_keys file mode 600(read & write) //Login to Target Node sudo su //create a file named "authorized_keys" at /root/.ssh/ (if not present already) touch authorized_keys //Change the /root/.ssh mode to 700 and authorized_keys file mode to 600 chmod 700 ~/.ssh && chmod 600 ~/.ssh/authorized_keys/
3. Add the Ansible public key to the "authorized_keys"of the Target Node // Login to the target node sudo su vi /root/.ssh/authorized_keys //move to end , press enter copy the public key and paste here, save exit 4. Optional(restrict the password authentication) //Login to Target Node sudo su vi /etc/ssh/sshd_config //change the line PasswordAuthentication yes to no

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Ssh between ansible control node with that of target

  • 1. Objective As a DevOps Engineer I want to set up Configuration Management System using Ansible. I have Two Target Machine and One Ansible Control node. I want to setup SSH between Ansible Control node with that of Target Node
  • 2. Ansible-Control-Node Private-Key Public-Key Target-Node-1 Private-Key Public-Key Target-Node-2 Private-Key Public-Key //copy // whoare allowedtoaccessme Ansible-Control-Node Public-Key // whoare allowedtoaccessme Ansible-Control-Node Public-Key authorized_keys authorized_keys
  • 3. 1. Generate your keys (Ansible Control Node // It wants to access target) //Login to Ansible Node sudo su // generate the keys ssh-keygen -t rsa //i.e it will generate 2 files id_rsa.pub(public key) and id_rsa(private key) at location /root/.ssh/ 2. Create a file "authorized_keys" at the root user's .ssh directory . Change the .ssh directory mode to 700(executable) and authorized_keys file mode 600(read & write) //Login to Target Node sudo su //create a file named "authorized_keys" at /root/.ssh/ (if not present already) touch authorized_keys //Change the /root/.ssh mode to 700 and authorized_keys file mode to 600 chmod 700 ~/.ssh && chmod 600 ~/.ssh/authorized_keys/
  • 4. 3. Add the Ansible public key to the "authorized_keys"of the Target Node // Login to the target node sudo su vi /root/.ssh/authorized_keys //move to end , press enter copy the public key and paste here, save exit 4. Optional(restrict the password authentication) //Login to Target Node sudo su vi /etc/ssh/sshd_config //change the line PasswordAuthentication yes to no