By default nagios is accessible at http://nagiosserver/nagios3 . To have it accessible at http://nagiosserver, link the htdocs and stylesheet to /var/www (or wherever the root is located). rm -r /var/www ln -s /usr/share/nagios3/htdocs/ /var/www ln -s /etc/nagios3/stylesheets /var/www You can change /var/www to /var/www/whateeve r, so that it is accessible at http://nagiosserver/whatver