Debian command-line cannot resolve host [closed] - linux

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I'm having an issue where my remote command-line cannot resolve the local hostname. It doesn't show as user#localhost, user#ip or any variant, but instead as user#(none):
Using username "rogue".
rogue#<my-ip>'s password:
Linux (none) 3.13.7-x86_64-linode38 #1 SMP Tue Mar 25 12:59:48 EDT 2014 x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sun Apr 27 15:34:56 2014 from ---
rogue#(none):~$
Any proceeding commands cause this warning message:
rogue#(none):~$ sudo service nginx start
sudo: unable to resolve host (none)
[sudo] password for rogue:
Looking at my hosts and hostname files, I'm not seeing anything out of the ordinary:
/etc/hostname
127.0.0.1 localhost
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
/etc/hosts
127.0.0.1 localhost
127.0.1.1 debian
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
What could potentially be wrong with my network configuration? If possible, I would like that it says user#my.domain, but I need localhost to still route correctly to 127.0.0.1

Answer 1

Your /etc/hostname is very wrong.
It should be plain text of FQDN, like example.com or localhost, instead of a similar copy of /etc/hosts
You may want to use command hostname to view and set hostname, man it

Answer 2

What about these commands?
hostname here.yourhost.name
sudo sed -i "s|localhost|localhost $(hostname)|g" /etc/hosts
adding hostname next to other, localhost names in /etc/hosts