2.2. The Interchange operating system user
If Interchange was installed as a regular user, that will be the user Interchange runs as. If Interchange was installed as root or from an RPM, you need to know the name of the separate Interchange user. The Interchange daemon will not run as root, or even as the web server user (often www or httpd or nobody). If Interchange was installed from the RPM, or with the default source installation settings, the default username is interch. If a different user name was established, you will need to know what it is.