[Transfer] Blocking Direct IP Access in Apache

Original address: https://edmondscommerce.github.io/apache/blocking-direct-ip-access-in-apache.html

Test environment:
CentOS Linux release 7.3.1611 (Core)
Apache: 2.4.6

If you are using Name Based on virtual hosts, usually you will want to prevent users from accessing your website directly using the IP address. The implementation method is as follows:

Create a new configuration file:

vim /etc/httpd/conf.d/block-ip-access.conf

The content is as follows:

<VirtualHost *:80>
    ServerName <your ip address>
    Redirect 403 /
    ErrorDocument 403 "Please use domain to access this site."
    DocumentRoot /dev/null/
    UseCanonicalName Off
    UserDir disabled
</VirtualHost>

Restart Apache:

systemctl restart httpd

After that, if you use IP to access directly, the browser will report a 403 error, and at the same time, "Please use domain to access this site." will be displayed on the page.

Note: If you are not using Name based virtual hosts and just resolve the domain name directly to the Apache server, you will also get a 403 error. That is, you need to have settings similar to the following:

<VirtualHost *:80>  
    ServerName example.com
    ServerAlias www.example.com
    ...
</VirtualHost>