host key verification failed. ssh code example

Example 1: host key verification failed

#Windows:
ssh-keyscan -t rsa github.com >> %userprofile%/.ssh/known_hosts

#Mac:
ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts

Example 2: Host key verification failed.

$ ssh -o StrictHostKeyChecking=no [email protected] uptime