$ sudo vi /etc/hostname
servername (usually scw-xxxxxx)
Save & exit.
$ sudo vi /etc/hosts
127.0.1.1 scw-xxxxxx scw-xxxxxx
127.0.0.1 localhost
# This is for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
Save, exit and restart service:
$ sudo service hostname restart
Finally, verify that the hostname was properly set:
$ hostname or hostname -f or hostname --fqdn