13.04 and older
This is just a friendly warning and not really a problem (as in that something does not work).
If you go to:
and then restart apache by typing into the terminal:
sudo systemctl reload apache2
the notice will disappear.
If you have a name inside
/etc/hostname you can also use that name instead of
And it uses
127.0.1.1 if it is inside your
If you get this error:
apache2: Could not determine the server's fully qualified domain name,
using 127.0.0.1 for ServerName
then use a text editor such as "sudo nano" at the command line or "gksudo gedit" on the desktop to create a new file,
sudo nano /etc/apache2/conf.d/fqdn
gksu "gedit /etc/apache2/conf.d/fqdn"
to the file and save. This can all be done in a single command with the following:
echo "ServerName localhost" | sudo tee /etc/apache2/conf.d/fqdn
But on Ubuntu 14.04:
echo "ServerName localhost" | sudo tee /etc/apache2/conf-available/fqdn.conf
sudo a2enconf fqdn
Don't forget the ".conf" (without will not work).