Let’s say you have a domain mywebsite.com and you want to add a subdomain blog.mywebsite.com. Here’s how to do it.
Create an apache config file:
touch /etc/apache2/site-available/blog.mywebsite.com
vi /etc/apache2/site-available/blog.mywebsite.com
Insert this configuration:
<VirtualHost *:80>
ServerAdmin webmaster@localhost
DocumentRoot /var/www/blog.mywebsite.com
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>Enable the new config
a2ensite blog.mywebsite.com
Put all files under /var/www/blog.mywebsite.com and done!
P/S : To remove a subdomain, run :
a2dissite blog.mywebsite.com