UDA Error Message: You are not authorized to initiate shutdown Take the following action to rectify this problem. Open your Broker Rulebook (oplrqb.ini by default) in a text editor (vi, emacs, TextEdit, BBEdit, Notepad, Wordpad, etc.). Locate the [Request Broker] section. Locate the HostNameResolver parameter. Ensure that there are no semicolons in front of HostNameResolver. Set HostNameResolver=No, as -- [Request Broker] ... HostNameResolver = No Locate the [Security] section. Ensure there are no semicolons in front of ShutdownBy and ShutdownFrom. Confirm that the user issuing the shutdown command (e.g., george), and the hostname and/or IP address of the machine from which they're issuing the shutdown command (typically the Broker host itself; e.g., broker-host, broker-host.example.com, 192.168.123.234), are respectively found in the ShutdownBy (username) and ShutdownFrom (hostname, IP address) values. Note that regex is active on these values, so you must escape the dot-separators in IP addresses and host names. [Security] StartupBy = root, george ShutdownBy = root, george ShutdownFrom = arthur, arthur\.example\.com, 192\.168\.123\.234, localhost, 127\.0\.0\.1 You may wish to test with these set to wildcard values, but note that this is a potential security issue which may enable Denial Of Service and other attacks. [Security] StartupBy = *, .* ShutdownBy = *, .* ShutdownFrom = *, .* Save your changes. Force-quit the Request Broker, using the Process Manager on Windows, kill command on Unix, or similar techniques. Confirm that the process has been terminated before proceeding. Launch your Request Broker. Test a friendly Broker shutdown, using oplshut, Services control panel on Windows, etc. . ./openlink.sh oplshut -fy Confirm that the error has been resolved. Evidence Broker Rulebook