Describe the issue:
 - While installing RHEL 9, ssh root login is disabled by default. 
 - In order to enable ssh by root user, follow any of the below steps:
   1. Enable "Allow root SSH login with password" flag while setting the root password during the RHEL 9 installation.
   2. Post installation, manually set "PermitRootLogin yes" in sshd_config. 
      For example:
      # echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config.d/01-permitrootlogin.conf
      # systemctl restart sshd

This needs to be include in the installation guide.

Describe the task you were trying to accomplish:
 - RHCS installation guide needs to include a section to enable ssh login for root user

Suggestions for improvement:
 - Modify the Prerequisites sections and include this information.

Document URL:
 1. https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/6/html-single/installation_guide/index#red-hat-ceph-storage-installation
 2. https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/6/html-single/installation_guide/index#creating-an-ansible-user-with-sudo-access-install
 3. https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/6/html-single/installation_guide/index#enabling-passwordless-ssh-for-ansible_install

Chapter/Section Number and Title:
 - 3.6. Creating an Ansible user with sudo access
 - 3.7. Enabling password-less SSH for Ansible

Product Version:
 - RHCS 6

Environment Details:
 - NA

Any other versions of this document that also needs this update:
- Yes. RHCS 5.
  RHCS 5 can be installed on RHEL 8 and RHEL 9.
  While installing RHEL 9, ssh root login is disabled by default and which needs to be enabled first.