General hostname domain email question.
I set up a perfect server with Debian Lenny.
I am a bit confused about domain names and emails and I would like some clarification.
Say I own a domain name called corenet.com
The A & MX records all point to my IP
I have called my server with a host 'dragon'.
and thus the hostname for the server is dragon.corenet.com
If I understand an email would be linked to a hostname.
i.e. an actual email should look like: firstname.lastname@example.org
So if I were to send an email to 'email@example.com' it should be delivered to the user's account 'stephen' on dragon.
But what happens if I want to send an email from the outside world to firstname.lastname@example.org and it be delivered to 'email@example.com' does this work in a similar way to apache's ServerAlias? And how would you configure this is courier?
Should corenet.com & dragon.corenet.com both resolve from the outside world to the same server IP or should dragon.corenet.com resolve internally on my LAN only and the default for *.corenet.com resolve to the server's IP?
And what should I actually use for 'System mail name'?
1) dragon.corenet.com or
Does anyone know of a good tutorial on server host naming?
*Domain name has been changed*
If I am a bit confusing I can try and clarify but it's all Greek to me.
Mail is routed by means of an MX record, you do not need to point the domain name to a host ip. You need to create an MX record that points to your mail server(s)
Sorry my server died on me. Got the following error:
(98)Address already in use: make_sock: could not bind to address [::]:80
no listening sockets available, shutting down
Unable to open logs
I tried everything apt-get purge... reinstalling and nothing so I am going to format and install from scratch. I had in in my mind to do it at some point but I guess now is as good a time as any.
As for the mail server name I think it's best to use the hostname (FQDN) of the server but this raises an issue if your server (via perl) sends an email to clients.
I will need to look into this after the server is back up.
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