Debian Stretch related bugfix

softy

@@ -174,6 +174,7 @@ echo "127.0.0.1   localhost.localdomain   localhost" > /etc/hosts
 echo "${serverIP} ${HOSTNAMEFQDN} ${HOSTNAMESHORT} #ispconfig " >> /etc/hosts
 echo "$HOSTNAMESHORT" > /etc/hostname
 /etc/init.d/hostname.sh start >/dev/null 2>&1
+hostnamectl set-hostname $HOSTNAMESHORT
 if [[ $family == "Ubuntu" ]]; then
 	# set hostname in Ubuntu
 	hostnamectl set-hostname $HOSTNAMESHORT