The remote web server has been observed running WebGUI, a Perl-based content management system.
WebGUI is a free and open-source content-management framework written in Perl and distributed under the GNU General Public License. WebGUI provides a GUI to build user content and pages. The WebGUI installation can serve as a simple website, a single- or multi-user blog, an Internet forum, or a community website providing for user-generated content. Traffic observed coming from this host indicates it's hosting a WebGUI server.
Ensure that this server is sanctioned by policy and guidelines regarding acceptable network usage.