How to change your linux machines hostname and connect with ssh?

This video has the below steps:
Step1: Checking the hostname in hostname

Step2: Checking the host details in hostnamectl

Step3: Changing the hostname

Step4: Looking for new host details

Step5: Reboot the machine and check its
connection with new hostname

Step6: Now, let us try to connect to other machines
with ssh connectivity.

Step7: Making sure the renamed machine host is
being accessed by other machines also through ping.

Step8: Install openssh-server to connect through ssh.

Step9: Connect through ssh.

For SSH configuration please visit my blog, it has the demonstrated video also: