Install mod_setenvifplus for Apache2

As root or sudo: # aptitude install apache2-dev libssl-dev Compile and install: The module is created in: /usr/lib/apache2/modules/mod_setenvifplus.so Manually create load file in Apache conf: /etc/apache2/mods-available/setenvifplus.load:LoadModule setenvifplus_module /usr/lib/apache2/modules/mod_setenvifplus.so Enable module: # a2enmod setenvifplus Check if the module is installed: #