Servername in Apache2

Towards the end of the install you will see this warning:

apache2: Could not reliably determine the server's fully qualified domain name,
using 127.0.0.1 for ServerName

Although I’ll be going into some detail about the options and settings available in the main apache configuration file, let’s fix that warning straight away.

Open the main apache config:

sudo nano /etc/apache2/apache2.conf

At the bottom of the file add the following:

ServerName demo

Change the ServerName to your Slice hostname or a FQDN (remember this demo Slice has a hostname of ‘demo’).

Once done, save apache2.conf and gracefully restart Apache (this method of restarting won’t kill open connections):

sudo apache2ctl graceful

Now the warning has gone. Nice.