Apache2: problems with subdomains

Hi,

I use in my server Ubuntu 12.04 LTS 64 bit operating system and Apache2 2.0 web server software.
I have problems with subdomains. I have domain: example.eu and i'm trying to do subdomain like test.example.eu.

My httpd.conf look like this:
ServerName 127.0.1.1

My /etc/apache2/sites-available/test.example.eu look like this:

<VirtualHost *:80>
ServerName example.eu
ServerAlias www.example.eu
DocumentRoot /var/www
<Directory />
Options FollowSymLinks
AllowOverride None
</Directory>
<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride None Order allow,deny allow from all
</Directory> DirectoryIndex index.php index.html
</VirtualHost>
<VirtualHost *:80>
ServerName test.example.eu
DocumentRoot /var/www/
<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride All Order Deny,
Allow Allow from all </Directory>
</VirtualHost>

I have also done a2ensite test.example.eu

If i do service apache2 reload , i dont see any error message
But if i try to visit test.exaple.eu with web browser i receive error: Cannot display the web page.

Can anybody give some advice ?

Do you an entry in /etc/hosts or in your DNS server that resolves test.example.eu to the correct IP address?

It is a DNS issue and nothing to do with Apache? I.E. Is the client computer able to translate "test.example.eu". Does "nslookup test.example.eu" give an IP address? Examples (for my network):

Code:

---

doug@doug-64:~/config/bind$ nslookup s15.smythies.com  <<<< exists in DNS
Server:        127.0.0.1
Address:        127.0.0.1#53
Name:  s15.smythies.com
Address: 192.168.111.112
doug@doug-64:~/config/bind$ nslookup zzz.smythies.com  <<<< does not exist in DNS
Server:        127.0.0.1
Address:        127.0.0.1#53
** server can't find zzz.smythies.com: NXDOMAIN

---

Note: I had not seen Seiji's excellent reply above, and I always forget to think about the hosts file option that Seiji mentioned.