In all likelihood you changed the default httpd.conf to not listen on 127.0.0.1 which is how iworx-cp checks to see if httpd is up and serving requests. If you make 127.0.0.1:80 active the NodeWorx interface will be happy.
InterWorx Control Panel uses the standard Apache configuration file, located in /etc/httpd/httpd.conf This file controls some server wide variables, however this file may be overwritten during an update so if you edit it make sure to keep a backup copy for your reference. Each domain is controlled through a virtual host file located in /etc/httpd/conf.d […]
We strive to provide the latest stable version of Apache that is natively supported by your installed Operating System, however if you find you need to recompile Apache for some reason, we recommend you utilize our source RPM, at http://updates.interworx.com/iworx/SRPMS/ . The package name will be “httpd”.
InterWorx-CP integrates with the Apache webserver. The Web Server management page in NodeWorx allows the user to to start, stop, or restart the webserver on command from a web interface. It also allows the user to configure the webserver to start automatically on server reboot, and auto-restart the webserver if it does for any reason […]
Purpose The following procedure explains how to configure Apache server options using InterWorx. The most common configuration options are exposed in the InterWorx interface. As with many of the system services, a system administrator still retains the ability to configure the service by editing the configuration file. How to: Configure Web Server Options Click the System […]