I tried to install passenger-install-apache2-module and getting error : Apache2 headers not found. its seems that Passenger is not getting a Path of an Apache2.4 to solve this., we need to export these ENV into bash export HTTPD=”/usr/local/apache2/bin/httpd” export BINDIR=”/usr/local/apache2″ export APXS2=”/usr/local/apache2/bin/apxs” export APR_CONFIG=”/usr/local/apr/bin/apr-1-config” export APU_CONFIG=”/usr/local/apr/bin/apu-1-config” or we can Direct pass the path as passenger-install-apache2-module […]