Learn how to add mod_headers Apache2 from the experts. Our Server Management Support team is here to lend a hand with your queries and issues.

How to add mod_headers apache2

Did you know that mod-headers is an Apache module that helps us control as well as modify HTTP request and response headers?

According to our experts, this module comes in handy to manage cache headers, and cookies, as well as with cross-origin resource sharing.

Interestingly, the mod-headers module is not enabled in most Apache versions even though it is installed. Fortunately, we can manually enable the mod_headers module. In case we do not enable this module, we are likely to run into the following error message when we try to change headers:

500: Internal Server Error

Let’s take a look at how to install and enable mod_headers in Apapche2:

1. Forts, we have to run the following command to install the module:

   $ sudo a2enmod mod_headers
2. Next, we have to run this command in the terminal:

   $ sudo a2enmod headers
3. Then, restart the Apache web server so that the changes can take effect.
4. Finally. It is time to check if the mod_headers module is working with this command:

   $ apachectl -M | headers

   Or

   $ apache2ctl -M | grep headers

   We will be able to see the following output once mod_headers is enabled and running:

   $ headers_module (shared)

Furthermore, if we want to disable or uninstall this Apache module, we can use the following command:

$ sudo a2dismod mod_headers

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

In conclusion, our Support Engineers demonstrated how to add and enable mod_headers in Apache2 with ease.