I am using Proxmox. I tried to run new OpenVZ container and I set my recently registered domain as a hostname in format "three digit number dot ie" (XXX.ie). The problem is, that after starting server, no matter what is written in files /etc/hosts and /etc/hostname the command
alway gives me answer just XXX (without dot ie). This way my domain is not FQDN and I'm having troubles with installation of any software.
I think it is Proxmox bug, because I tried to change hostname to, for example, to test.ie and it worked as it should.
I just querrying myself that maybe I should try set this domain name with quotation marks or any other trick which I don't know.