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

Apache2
Apache2 ver los modulos cargados
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Autor YouCode - http://www.youcode.com.ar/apache2/invalid-command-header-perhaps-misspelled-or-defined-by-a-module-not-included-in-the-server-configu-362

Fecha 27/06/2015

Solución, simplemente falta activar el modulo header

# a2enmod headers

y luego

# service apache2 restart

http://www.youcode.com.ar/apache2/invalid-command-header-perhaps-misspelled-or-defined-by-a-module-not-included-in-the-server-configu-362