Switch from Apache to Nginx
If you want to switch the Web server, stop and disable Apache and enable and start NGINX:
$ /opt/bitnami/ctlscript.sh stop apache
$ mv /opt/bitnami/apache2/scripts/ctl.sh /opt/bitnami/apache2/scripts/ctl.sh.disabled
$ mv /opt/bitnami/nginx/scripts/ctl.sh.disabled /opt/bitnami/nginx/scripts/ctl.sh
$ /opt/bitnami/ctlscript.sh start nginx