As complete beginner, I have been trying to host multiple domains on one Apache VPS. Tutorials had too much information that lead me to confusion.
Below I describe, for complete begginers, how to host multiple domains on one VPS server with Ubuntu and Apache.
IMPORTANT! You need to use root account to execute most operations.
IMPORTANT! If you have been trying to make some changes to apache configuration before, undo them.
Creating VirtualHosts
Create folders for your domains on server.
For example:
/home/apache/domain1
/home/apache/domain2
Put index.html file in each folder with any text.
This is domain1
This is domain2
Go to /etc/apache2/sites-available folder.
/etc/apache2/sites-available
Create file domain1
sudo nano domain1
<VirtualHost *:80>
DocumentRoot /home/apache/domain1
ServerName domain1.com
ServerAlias www.domain1.com
</VirtualHost>
Create file domain2
sudo nano domain2
<VirtualHost *:80>
DocumentRoot /home/apache/domain2
ServerName domain2.com
ServerAlias www.domain2.com
</VirtualHost>
You can create subdomains same way.
sudo nano blog
<VirtualHost *:80>
DocumentRoot /home/apache/blog
ServerName blog.domain.com
ServerAlias www.blog.domain.com
</VirtualHost>
Enable created sites
sudo a2ensite domain1
sudo a2ensite domain2
Restart apache
sudo service apache2 reload
Redirecting domain to server
Created VirtualHosts will work only if you redirect your domain name to server IP. Domains are just names that can be translated to IP numbers.
Local computer
To test your configuration on local machine, you need to edit hosts file.
sudo nano /etc/hosts
It should look like this.
127.0.0.1 localhost domain1.com domain2.com
Hosts file tells your computer that domain needs to be redirected to local machine.
IMPORTANT! If you create entry in hosts file for existing domain, for example
127.0.0.1 stackoverflow.com
you will lose access to this website.
Server
In order to redirect domain to you web server, you need to create or modify "A"-type DNS record for given domain to IP address of your server. You can do it by panel control provided by your domain registrar.
If you do not know IP address of your server, log in to that server and type in command line:
ifconfig
