Domains crossed over on digital ocean - apache

Question

I have two domains. exampleone.com and exampletwo.com.
I followed this guide for adding multiple domains on the same server:
https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-ubuntu-16-04
They are both on the same server. Somehow, blog.exampleone.com was created (out of nowhere). and it points to exampletwo.com.
If I click on the site in google, it shows blog.exampleone.com as the domain, but shows the content for exampletwo.com
How is this happening?
I've looked into the vhost files and everything seems correct.
Here is a sample vhost file:
<VirtualHost *:80>
ServerAdmin dave#example.com
DocumentRoot /var/www/html/exampleone.com/public_html
ErrorLog ${APACHE_LOG_DIR}/error.lognano
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
This should result in 2 separate sites on the same server. Instead, a blog subdomain was created on one site that points to the content on another site.
What should I do?
Thanks!

Answer 1

You neeed to specify the "ServerName" in your vhost file, something like :
<VirtualHost *:80>
ServerAdmin dave#example.com
ServerName blog.exampleone.com
DocumentRoot /var/www/html/exampleone.com/public_html
ErrorLog ${APACHE_LOG_DIR}/error.lognano
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
in fact, for each vhost file, you need to specify the ServerName to work properly with your subdomains!