# Apache Virtual Alias

Apache Virtual Alias lets you map a subdomain to a directory within a Virtual Host entry.
This lets you create dynamic sites just from directories without needing to create a virtual host entry each time.

### Enable Mod

```shell
sudo a2enmod vhost_alias
```

### VirtualHost Example

```
<VirtualHost *:80>
    ServerAlias *.acme.com
    VirtualDocumentRoot /home/user/sites/%1
    <Directory /home/user/sites>
        Options +Indexes +FollowSymLinks +MultiViews
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>
```

Once this is setup restart apache and all subdomains will map to relevant document roots.

Its also possible to map more than one wildcard to a subdomain, which matches in order of subdomain

```
<VirtualHost *:80>
    ServerAlias *.*.acme.com
    VirtualDocumentRoot /home/user/sites/%2/%1
    <Directory /home/user/sites>
        Options +Indexes +FollowSymLinks +MultiViews
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>
```