How to Install Apache as a System Service
# cp /usr/local/apache2/bin/apachectl /etc/rc.d/init.d/httpd
Then edit /etc/rc.d/init.d/httpd with vi and add the following (below #!/bin/sh)
# chkconfig: 2345 50 90
# description: Activates/Deactivates Apache Web Server
Finally, run chkconfig to add Apache to the system startup services:
# chkconfig –add httpd
# chkconfig httpd on
Then start the service with: service httpd start