Summary I can open the Netmgr in the Xshell through Xmanager without any issue. There was problem to do so using Oracle user under xWindows. Resolved it by setting “DISPLAY=:0.0”. Problem Need to use Netmgr GUI in xWindows. Error as below, [tom@ocp ~]$ netmgr ****DISPLAY environment variable not set! Oracle Net Manager is a GUI […]