I've setup one of my domains to point to my Linode IP address:
server.mydomain.net > 18.104.22.168
I then went into my Linode DNS manager and set the rDNS entry to the above URI. I then set my hostname on the server with the following:
cat /etc/hostname server.mydomain.net cat /etc/hosts 127.0.0.1 localhost lil00-000 server.mydomain.net
Is this all that's required correctly setup my server's hostname? The IP correctly resolves to my server but I want to ensure emails won't get flagged as spam coming from my server due to a badly configured hostname.