Apache: edit to .conf file produces "Invalid command 'Header'"
In order to use Header directive in apache you have to load mod_header module. You can test if module is loaded or not by :-
apache2ctl -M | grep headers_module
find / -name mod_headers.so
If it is loaded you will see something like :-
headers_module (shared)
/usr/lib/apache2/modules/mod_headers.so
If you see no output of find command than load that module directly in your apache conf file. Just append below line :-
LoadModule headers_module modules/mod_headers.so
Note :- mod_header is available as base module in apache. So you don't need to install it explicitly.
Issue following command :-
a2enmod headers
Restart web service
apache2ctl restart
Steve
Updated on July 09, 2022Comments
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Steve almost 2 years
In Magento CE, I'd like to install an add-on to Extendware Page Cache called Lightening Cache.
It requires editing the Apache configuration inside the virtual host definition for the site, by adding:
RewriteEngine On RewriteMap ewpchash prg:/home/.../shell/extendware/ewpagecache/apache/md5.php RewriteCond %{REQUEST_METHOD} !POST RewriteCond %{REQUEST_URI} !\.(js|css|png|jpg|jpeg|ico|gif)$ [NC] RewriteCond %{DOCUMENT_ROOT}%{SCRIPT_FILENAME} !-f RewriteCond ${ewpchash:%{HTTPS};~;%{HTTP_HOST};~;%{REQUEST_URI};~;%{QUERY_STRING};~;%{HTTP:Cookie};~;%{SCRIPT_FILENAME};~;%{REMOTE_ADDR};~;%{HTTP_USER_AGENT}} -f RewriteRule ^(.*)$ ${ewpchash:%{HTTPS};~;%{HTTP_HOST};~;%{REQUEST_URI};~;%{QUERY_STRING};~;%{HTTP:Cookie};~;%{SCRIPT_FILENAME};~;%{REMOTE_ADDR};~;%{HTTP_USER_AGENT}} [NC,L] <FilesMatch "\.(html)$"> Header unset Cache-Control Header unset Expires Header append Expires "Thu, 19 Nov 1981 08:52:00 GMT" Header append Cache-Control "must-revalidate" </FilesMatch>
I have added this to the bottom of
/etc/apache2/sites-enabled/site.conf
.When I run the command
apachectl graceful
, I receive the error:AH00526: Syntax error on line 53 of /etc/apache2/sites-enabled/site.conf: Invalid command 'Header', perhaps misspelled or defined by a module not included in the server configuration Action 'graceful' failed. The Apache error log may have more information.
Site is running Apache 2.4
Have I done something wrong?