I’m running certbot on an aws ec2 server with amazon linux 2. I’ve used this documentation: https://certbot.eff.org/lets-encrypt/centosrhel7-nginx.html. I’m wondering about step 3 in the documentation:
yum-config-manager --enable rhui-REGION-rhel-server-extras rhui-REGION-rhel-server-optional
Is this really necessary? What does this do? Everything works without this step.