Instructions

1. Reset the password for Ubuntu to a strong password.

   1sudo passwd ubuntu

2. Modify the ssh config file on the instance to allow password authentication.

   1sudo nano /etc/ssh/sshd_config

3. Change the ‘PasswordAuthentication’ directive from no to yes.

   1sudo sed -i 's/PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config

4. Restart the sshd service to make the changes effective.

   1sudo /etc/init.d/ssh restart

5. Modify the cloud-init configuration so as to not lock user accounts upon instance creation from a custom AMI.

   1sudo sed -i 's/lock_passwd: True/lock_passwd: False/' /etc/cloud/cloud.cfg

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