Hi Team, When i am doing the lsnrctl stauts listener_9i it is throwing error like: Connecting to (ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener Solaris Error: 2: No such file or directory Connecting to (ADDRESS=(COMMUNITY=TCP.us.com)(PROTOCOL=TCP)(Host=nad1a)(Port=1521)(QUEUESIZE=50)) however, it is showing the stauts perfectly. also the lisetenre is working perfectly. Any specific reason for this error. Any help is greatly appreciated. Thanks in advance, Raj --------------------------------- Food fight? Enjoy some healthy debate in the Yahoo! Answers Food & Drink Q&A.