How to start the SSH service if it fails after rebooting the server

HOW TO START THE SSH SERVICE IF IT FAILS AFTER REBOOTING THE SERVER

Step1:
please the check ssh service

   systemctl status ssh.service

Step2:

And give below command

   sudo sshd -t

Step3:

It shows the missing privilege directory below the outputs

   Missing privilege separation directory: /var/run/sshd

Step4:

Please create the directory in sshd and follow the below command

   mkdir -p /var/run/sshd

give ownership to that directory Please follow the below command

   chown root:root /var/run/sshd

Step5:

After restarting the SSH

   systemctl restart ssh

Step6:

Finally, this will work on the server and SSH port issue resolve in the server

    sudo sshd -t