Invalid command ‘Header’, perhaps misspelled or defined by a module not included in the server configuration

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I got the following error for one of the Magento e-commerce website:

Invalid command ‘Header’, perhaps misspelled or defined by a module not included in the server configuration

After googling it was found that the related headers module was not enabled in Apache.

I was able to fix the issue simply by following two commands:
1. Enabling headers Module

ln -sf /etc/apache2/mods-available/headers.load /etc/apache2/mods-enabled/headers.load

2. Restarting Apache

/etc/init.d/apache2 restart

Note: Above commands were run from Ubuntu 10.04.2 server

Hope this’s helpful.
Cheers

4 thoughts on “Invalid command ‘Header’, perhaps misspelled or defined by a module not included in the server configuration”

  2. I just encountered this issue on a new ubuntu 12.10 server I provisioned, but I used sudo a2enmod headers instead.

    However, I’m wondering why this is even required.
    I’ve had ubuntu 10.10 server running for almost 2 years now where headers is NOT enabled and my 1.4.20 site and various newer test beds have been running fine.

    I just provisioned a new test bed running ubuntu 12.10 and configured it identical to my other server, except now I was getting this headers error. Why would headers be required now when it was not previously. I’m dealing with the same copy of a magento store on both servers.

    Why

    Reply

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