FQDN still reported as localhost

[leanderjanssen]

When running "hostname -f" the fqdn is reported as localhost.
This is related to the /etc/hosts file and in particular this line:

127.0.0.1 localhost hostname

When changing this to:

127.0.0.1 localhost
127.0.1.1 hostname

the fqdn is reported correctly.

This is also in line with the Debian reference guide:

https://www.debian.org/doc/manuals/debian-reference/ch05.en.html#_the_hostname_resolution