How to host multiple subdomains with a single IP address on a Linux Apache Server
<![CDATA[Assumptioms: Linux, Apache2, Godaddy Registrar, Static WAN IP of 98.174.244.11,
domain is example.com, subdomains are www and ex1 (e.g., ex1.example.com),
your webfiles are in /var/www/. For CentOS the default is /var/www/html/.
Steps 1-5 are completed on your registrar.
1) On godaddy, click _domain details_.
2) Click _edit_ on your Name Server and park your domain.
3) Launch the DNS manager.
4) Set A(Host): Set the HOST to @ and POINTS TO to 98.174.244.11
5) Set CNAME(Alias): Set the HOST to ex1 and POINTS TO to @
Steps 6-8 are completed on your Linux server.
6) add the following lines to /etc/apache2/httpd.conf (/etc/httpd/conf/ is path on CentOS)
NameVirtualHost *:80
NameVirtualHost *:443
<VirtualHost *:80>
ServerName ex1.example.com
DocumentRoot "/var/www/ex1.example.com/"
</VirtualHost>
<VirtualHost *:80>
ServerName www.example.com
DocumentRoot "/var/www/www.example.com/"
</VirtualHost>
7) Restart Apache. sudo /etc/init.d/apache2 restart For CentOS. sudo /sbin/service httpd restart
8) investigate any errors reported when restarting apache]]>
See also
