Hi all, this may be a dumb question, but this is my first go at doing this, so please forgive my ignorance. I am trying to follow the "Perfect Server Ubuntu 20.04" tutorial, and I am stuck on step 6 where it wants me to set the "System Mail Name" in the postfix configuration. I do not have a domain name for my server, just an ip address, and I am unsure what to use for the system mail name because of this. Any help with this would be greatly appreciated.
Without a domain name you can not use email service. What you should do depends on what you want to accomplish, but you didn't tell us that.
Thank you for the reply Steini86, I really appreciate it. I'm just trying to set up a simple web server for my small personal websites instead of using a hosting company, I have extra domains I can use for the server. Seems like that's the way to go, so I'll just do that instead of making things complicated. Thank you again for your reply, and for your help.
The server hostname should be a subdomain like 'server1.yourdomain.tld', don't use just the domain name 'yourdomain.tld' as server hostname. So you can even use a domain that is used elsewhere by you as a server hostname, no need for a dedicated domain, all you have to do is to add a DNS A-Record for this subdomain which points to your server IP address and then use this subdomain as server hostname.
Thank you Till, I really appreciate the information, and the detailed explanation. The install went smooth, and as far as I can tell, everything is up and running just fine. Thank you again for the awesome support, and for providing such excellent software!
