Server insists on wrong hostname

[Christian Alge]

Hi,

I am operating a FreeBSD 10.0-STABLE server and once upon a time I
decided to change its hostname. I edited it in /etc/rc.conf, /etc/hosts
and /etc/defaults/rc.conf. I also set it by invoking `sudo hostname`,
but every time I restart it, it aquires the old name again. I fail to
see, where that setting comes from. Can any of you help me out with
that? Thanks in advance.