Some questions regarding Hostname
- Yes, you can give any hostname in /etc/hosts - this name will be known only to hosts and you.
- Yes, you can configure this way and have sites with unrelated to hostname names - most shared hosting do the same thing
- It doesn't affect nobody except outgoing mail from your VPS to this "intercepted" hostname (it it'll happen) - instead of sending to external Net it will be routed locally
- Yes, you can. Edit /etc/hosts and
service network restartdo all magic