tns 12546

Today, a database server is not logged on, reported Tns-12541:tns:no listener Look at the listener status on the server 1. oracle@linux-34:~> lsnrctl Status 2. 3. Lsnrctl for linux:version 11.1.0.6.0-production on 14-oct-2011 09:12:37 4. 5.

Today, a database server is not logged on, reported Tns-12541:tns:no listenerLook at the listener status on the server oracle@linux-34:~> lsnrctl status lsnrctl for linux:version 11.1.0.6.0-production on 14-oct-2011 09:12:37 C

1. TNS-00525: insufficient privilege for operation Started with pid=30869Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ora11g)(PORT=1521)))Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))TNS-12555: TNS:permission

Monitor startup error, report the following error:Lsnrctl startLsnrctl for linux:version 9.2.0.4.0-production on 06-jul-2009 14:37:59Copyright (c) 1991, 2002, Oracle Corporation. All rights

1.tns-00525:insufficient Privilege for operation Started with pid=30869 listening on: (Description= (Address= (protocol=tcp) (host=ora11g) (port=1521)) Error Listening on: (Description= (Address= (PROTOCOL=IPC)

  Very strange symptom.   Databases on the client server,It turns out that there is no problem to access other machines through IP + database name.But when I came on a business trip, I found that I couldn't access it in my book! No listening

Oracle 11gR2 RAC database cannot be connected (Ora-12537:tns:connection closed) Resolution[Email protected] ~]$ Sqlplus/nologSql*plus:release 11.2.0.1.0 Production on Wed 29 21:06:10 2012Copyright (c) 1982, Oracle. All rights reserved.Sql> Connect

In their own virtual machine to do experiments, suddenly found that the use of PL/SQL developer can not connect to the database, error ORA-12514, said to be monitoring does not start.First introduce the virtual machine environment: Redhat7.2+gi 12.2.

Over time, I feel that Oracle is getting more and more needed. Today, let's take a look. For Windows 7, Oracle 10g for windows.iso,when later, setup.exe, prompt must be 4.0, 5.0, 5.1 or 5.2 actual 6.1 failed Actually passed, I don't understand. Is

1. Use set oracle_sid=*** to jump between different versions of Oracle instances. 2. In different oracle_home may not be able to log on to Oracle instances, at this time the home under the Network/admin/sqlnet.ora is working; I:\oracle\product\10