Lab Content Issues -Day 3: Secure Root SSH Access of 100 days of Devops practice

in Day 3: Secure Root SSH Access of 100 days of Devops practice
i am doing correct in all app servers but it was through error for app1 server you did not configure root disable.

but i have did 3 times on all servers and same error oi got every time for only app1 server.

After you update the PermitRootLogin yes (Note the capital casing) to no in /root/.ssh/sshd_config. You need to restart the sshd service on all App Servers.

yes i have restart the sshd service