Oracle Tns Error No Listener
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other. Join them; it only takes a minute: Sign up Oracle client ORA-12541: TNS:no listener [closed] up vote 20 down vote favorite 1 I am new on Oracle database, but I have one issue, now on my Database server (server1) listener and database instance is run correctly and I can use sqlplus to connect to this DB, But when tns no listener error in oracle 11g I connect to database by using other server, I check the TNS configuration is correct but system said ERROR: ORA-12541: TNS:no listener My database is Oracle 10gR2 So how can I solve this issue? oracle listener share|improve this question edited Sep 23 '14 at 9:26 subhashis 1,55672430 asked Nov 13 '12 at 9:58 aliasosx 1332212 closed as off-topic by Jens Erat, Annjawn, Eric Brown, g00glen00b, showdev Feb 21 '14 at 23:30 This question appears to be off-topic. The users who voted to close gave this specific reason:"Questions on professional server- or networking-related infrastructure administration are off-topic for Stack Overflow unless they directly involve programming or programming tools. You may be able to get help on Server Fault." – Jens Erat, Annjawn, Eric Brown, g00glen00b, showdevIf this question can be reworded to fit the rules in the help center, please edit the question. 3 should be a serverfault.com / dba.stackexchange.com question –Raptor Nov 13 '12 at 10:01 But when I connect to database by using other server You mean to
Anil Kumar on June 26, 2013 All Posts, Database, Oracle DBA 18 Comments Resolved ORA-12541: TNS no listener error 4.57 (91.43%) 7 votes N no. of articles
Ora 12541 Tns No Listener Oracle 11g Client
you will find on the internet about "ORA-12541 TNS no listener error" but ora-12514 tns no listener still finding an effective solution. Don't worry this solution helped me a lot and I hope it will help you tns-12560: tns:protocol adapter error too. I got the same issue while working on Oracle 10g database then I decided to share my experience and steps to resolve this issue. Error Message: ORA-12541 TNS no listener error http://stackoverflow.com/questions/13358656/oracle-client-ora-12541-tnsno-listener 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 start This command will start all your listener services. Step-3: Stop the listener, if listener is running. C:\>lsnrctl stop This command will http://itbloggertips.com/2013/06/resolved-ora-12541-tns-no-listener-error/ 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. If this is not working, do write in comment section. I will try to help you at the earliest. Get Free Blogging Tips & Technology updates in your Email !!! Subscribe via RSS feed 0 Related PostsFixed ORA-12518: TNS:listener could not hand off client conne
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn http://dba.stackexchange.com/questions/12384/error-ora-12541-tnsno-listener 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 and http://www.orafaq.com/wiki/ORA-12541 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 no listener ask a question Anybody can answer The best answers are voted up and rise to the top Error ORA-12541: TNS:no listener up vote 3 down vote favorite Whenever I try to start the listener (I just have only one Oracle database) I get the following: LSNRCTL> status Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=admin-41f89f35d)(PORT=1521))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener 32-bit Windows Error: 61: Unknown error tnsnames.ora # TNSNAMES.ORA tns no listener Network Configuration File: F:\Oracle\network\admin\tnsnames.ora # Generated by Oracle configuration tools. PROJECT = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = admin-xxxxxx)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = PROJECT) ) ) INST1_HTTP = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = admin-xxxxxx)(PORT = 1521)) ) (CONNECT_DATA = (SERVER = SHARED) (SERVICE_NAME = MODOSE) (PRESENTATION = http://HRService) ) ) EXTPROC_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0)) ) (CONNECT_DATA = (SID = PLSExtProc) (PRESENTATION = RO) ) ) listerner.ora # LISTENER.ORA Network Configuration File: F:\Oracle\network\admin\listener.ora # Generated by Oracle configuration tools. LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = admin-xxxxxx)(PORT = 1521)) ) ) ) SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = F:\Oracle) (PROGRAM = extproc) ) (SID_DESC = (GLOBAL_DBNAME = PROJECT) (ORACLE_HOME = F:\Oracle) (SID_NAME = PROJECT) ) ) I really don't know what the problem is. My tnsnames.ora and listener.ora files looks fine to me. oracle listener share|improve this question edited Mar 8 '12 at 21:17 Nick Chammas 9,003115591 asked Feb 7 '12 at 7:55 linkin 16112 migrated from stackoverflow.com Feb 7 '12 at 13:21 This question came from our site for professional and enthusiast pr
causes this error?[edit] An ORA-12541 error occurs when the listener for the destination server is down or unreachable when you try to connect. This can be due to the listener not being started or being incorrectly configured, or it can be due to a network connection problem. How to fix it[edit] Make sure that the listener is up and listening on the address[edit] For example if you want to connect to the instance with SID=ORCL on a computer named TAMIN_NT using TCP protocol on PORT=1521 then it means that a listener has to be associated with SID = ORCL on machine TAMIN_NT and be listening for TCP protocol on port 1521. The listener must be up and running when one requests a connection. To check that the listener is up and running use operating system facilities (like Start -> Settings -> Control Panel -> Services under NT) or LSNRCTL (Listener Control Program.) The STATUS command of LSNRCTL shows the current state of the listener. If the listener is up and running then it may not have been associated with correct instance or not listening for the specified protocol. This information is the Listener Parameter File ( a text file) usually located under ORACLE_HOME\Network|Admin with the name of listener.ora. The STATUS command of LSNRCTL also shows the current location of this file. However, in my personal experience a STOP and START command in LSNRCTL is required for the STATUS command to show latest changes, especially when there are multiple Oracle homes on the same computer. The listener parameter file consists of two parts. The first part is the specification of the protocols for which this listener is listening, and the second part specifies the instances to which this listener is attached. Check and make sure that they are correct. You may edit listener.ora file either by an ordinary text editor or by using the Oracle Net8 Assistant utility. Just keep in mind that a restart of the listener is required for the changes to be effective. Here is an example listener.ora file: # Filename......: listener.ora # Node..........: local.world # Date..........: 24-MAY-94 13:23:20 ################ LISTENER = (ADDRESS_LIST = (ADDRESS= (PROTOCOL= IPC) (KEY= oracle.world) ) (ADDRESS= (PROTOCOL= IPC) (KEY= ORCL) ) (ADDRESS= (COMMUNITY= NMP.world) (PROTOCOL= NMP) (SERVER= NTSERVER) (PIPE= ORAPIPE) ) (ADDRESS= (PROTOCOL= TCP) (Host= ntserver) (Port= 1521) ) (ADDRESS= (PROTOCOL= TCP) (Host= ntserver) (Port= 1526) ) (ADDRESS= (PROTOCOL= TCP) (Host= 127.0.0.1) (Port= 1521) ) (ADDRESS= (PROTOCOL= SPX) (Service= ntserver_lsnr) ) ) STARTUP_WAIT_TIME_LISTENER = 0 CONNECT_TIMEOUT_LISTENER = 10 TRACE_LEVEL_