Oracle No Listener Error
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Ora-12541 Tns No Listener 11g
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ora-12541: tns:no listener linux ORA-12541: TNS: no listener Oracle Tips by John Garmany You Asked: I get the ORA-12541 error message when ora 12541 tns no listener toad I try to connect through Forms6i and Reports6i Builder. I've started the listener also. I have no problems accessing the database through SQL*Plus. I've checked the listener.ora and tnsnames.ora files and everythingTns No Listener Error In Oracle 11g
seems okay. We Said: From the docs: ORA-12541: TNS no listener Cause: Listener for the source repository has not been started. Action: Start the Listener on the machine where the source repository resides. Basically the Forms server could not find the listener. First check the tnsnames.ora file and ensure that it points to the correct server and port. If the Forms server is
Ora 12541 Tns No Listener Oracle 11g Client
on another machine, test the TNS resolve with tnsping from the command prompt. Finally, check the listener. First, ensure that your listener service is running. C:\Documents and Settings\ME>lsnrctl stat This should show the status of the listener and the services it is listening for. Remember that when you run SQL*Plus on the database server, it does not need the listener to connect unless you specify the database tnsnames.ora entry.Try to start the listener service using lsnrctl from DOS prompt. set ORACLE_HOME= cd %ORACLE_HOME%/bin lsnrctl start LISTENER If the listener service is not running, re-start the listener service using the Windows task manager or use the DOS command line utility to re-start the Windows service with the "net start" command: C:\Documents and Settings\ME>net start OracleOraDb10g_home1TNSListener You can use the lsnrctl status command to verify that the listener is down, and lsnrctl start to start your listener. If you are on Windows, also verify that the listener service is running. Here are more notes on lsnrctl: Oracle listener lsnrctl command Oracle listener lsnrctl command Oracle listener security tips Blocking Oracle access by IP Addresses
Anil Kumar on June 26, 2013 All Posts, Database, Oracle DBA 18 Comments Resolved ORA-12541: TNS no listener error 4.57 ora-12514 tns no listener (91.43%) 7 votes N no. of articles you will find on
Tns-12560: Tns:protocol Adapter Error
the internet about "ORA-12541 TNS no listener error" but still finding an effective solution. Don't worry this tns-12541: tns:no listener linux solution helped me a lot and I hope it will help you too. I got the same issue while working on Oracle 10g database then I decided to share http://www.dba-oracle.com/t_ora_12541_tns_no_listener.htm my experience and steps to resolve this issue. Error Message: ORA-12541 TNS no listener error Resolution: Now you have to follow below mentioned steps to resolve the ORA-12541 issue. Step-1: First check your listener status. C:\>lsnrctl status The above command will show the current status of your listener. Step-2: Start the listener, if listener is not running. C:\>lsnrctl http://itbloggertips.com/2013/06/resolved-ora-12541-tns-no-listener-error/ start This command will start all your listener services. Step-3: Stop the listener, if listener is running. C:\>lsnrctl stop This command will stop all your listener services. Step-4: Now restart the listener. C:\>lsnrctl reload This command will restart all your listener services. Note: If you want to see all the available listener commands. Type lsnrtcl help on command prompt and you will get all available options. C:\>lsnrctl help LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 02-JUL-2015 20:25:14 Copyright (c) 1991, 2010, Oracle. All rights reserved. The following operations are available An asterisk (*) denotes a modifier or extended command: start stop status services version reload save_config trace change_password quit exit set* show* Step-5: One last and very important thing which you have to do. Open sqlnet.ora file and make the changes as suggested. Change NTS to NONE SQLNET.AUTHENTICATION_SERVICES = (NONE) Now restart the listener services and your listener problem ORA-12541 will be resolved
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to http://dba.stackexchange.com/questions/73944/ora-12541-tnsno-listener any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question no listener and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top tns no listener ORA-12541: TNS:no listener up vote 3 down vote favorite 1 I've been working this issue all day, reading posts here and other locations. I'm just not able to get past this error. I can connect just fine locally on my server (CentOS), but continue to get the TNS:no listener error when trying to connect via my Mac (OSX Mavericks) which is on the same subnet. Below are some notes I've captured based on what information I see that has been requested for this type of issue: -------------------------------------------------------------------------------- MISC NETWORK CONFIG: -------------------------------------------------------------------------------- [root@rubyrailssvr ~]# more /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.14 rubyrailssvr.homenet.com [root@rubyrailssvr ~]# [root@rubyrailssvr ~]# more /etc/sysconfig/network NETWORKING=yes HOSTNAME=rubyrailssvr.homenet.com [root@rubyrailssvr ~]# -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- LISTENER.ORA File: -------------------------------------------------------------------------------- [oracle@rubyrailssvr ~]$ more /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora # listener.ora Network Configuration File: SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = /u01/app/oracle/product/11.2.0/xe) (PROGRAM = extproc) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION