When connecting with DB name Error Getting

Conn scott/tiger@Db1;
I got error like:
ERROR:
ORA-12541: TNS:no listener.
But if I write like

Enter user_name: scott
Enterr password: *.
Connect with success.

Why it happened what is the reason.
Please give the reason
Thank you

Using the first case, you can access the remote database using the connect identifier specified n your tnsname.orafile

Also the user through which you connect should be available in the remote database.

Suppose I want to connect to a remote user scott database while the user must be present in the remote database, so only he can connect

Tags: Database

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Listener to refuse the connection with the following error ORA-12505
Hi everyone, Am really new to the oracle database, I work on my school project work and am stuck in the middle of this error (listener refused the connection with the following error ORA-12505).

I started the time serveral listener and it is said that 'no service supported by the LISTENER', I can't access the database via sqldeveloper including trows on the same error (listener refused the connection with the following error ORA-12505, TNS:Listener currently know of SID given in connect descriptor.) In addition, my em show red arrow down to the listener. Here are my coordinates hard & software.

Oracle 11.1.0
OS: Red Hat Enterprise Linux 4 (running the operating system through Vmware workstation)
TNSNAME. ORA

LISTENER2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
((ADDRESS = (PROTOCOL = TCP (PORT = 1522))(HOST=localhost.localdomain))
)
)

AUDITEUR1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

Listner, ora

LISTNER_ORCL
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))
)

IMT_ADMI =
(= DESRIPTION
(PORT = 1522))
(ADDRESS = (PROTOCOL = TCP (PORT = 1522))(HOST=localhost.localdomain))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = imt_admin
)
)

LISTENER_IMTADMIN =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP (PORT = 1522))(HOST=localhost.localdomain))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

)

ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)

I read on some forums that I need to edit somethings that am not sure cos I don't want to mess with the database, I need help on what to.
Thanks for the help in advance.
(ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

Try to edit listener.ora by:
(ADDRESS = (PROTOCOL = TCP) (HOST = HOST_NAME_OF_YOUR_DATABASE_MACHINE/OR TRY USING THE IP ADDRESS OF THE DATABASE SERVER MACHINE)(PORT=1521))
Just try to edit HOST = value line above. You must use HOST_NAME_OF_YOUR_DATABASE_MACHINE or IP OF the DATABASE SERVER MACHINE.

Host name can be obtained by the hostname command on the database server.

With localhost, no one can connect to the database remotely.

Concerning
Girish Sharma

Published by: Girish Sharma January 11, 2013 18:26

then after the output of commands below:
lsnrctl stop
lsnrctl start
Wait 60 seconds...
ORACLE_SID =
sqlplus scott/tiger@tnsname

Show us what is happening now.

Listener refused the connection with the following error

Hi all,

I faced this problem. So after searching the forum I found the most important command for this questions as follows but until now I have not found the solution to this problem

Error: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

I have run the following commands

lsnrctl start
lsnrctl service
lsnrctl status

results as follows

C:\Windows\system32>lsnrctl start

LSNRCTL for 64-bit Windows: Version 11.2.0.1.0 - Production on 07-JAN-2013 00:28
:01

Copyright (c) 1991, 2010, Oracle.  All rights reserved.

TNS-01106: Listener using listener name LISTENER has already been started

C:\Windows\system32>lsnrctl service

LSNRCTL for 64-bit Windows: Version 11.2.0.1.0 - Production on 07-JAN-2013 00:28
:06

Copyright (c) 1991, 2010, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
The command completed successfully

C:\Windows\system32>lsnrctl status

LSNRCTL for 64-bit Windows: Version 11.2.0.1.0 - Production on 07-JAN-2013 00:28
:08

Copyright (c) 1991, 2010, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.1.0 - Produ
ction
Start Date                07-JAN-2013 00:24:39
Uptime                    0 days 0 hr. 3 min. 28 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   d:\app\DELL2\product\11.2.0\dbhome_1\network\admin\lis
tener.ora
Listener Log File         d:\app\dell2\diag\tnslsnr\DELL2-PC\listener\alert\log.
xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

C:\Windows\system32>

This is the 

listener.ora  file 


# listener.ora Network Configuration File: d:\app\DELL2\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = d:\app\DELL2\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:d:\app\DELL2\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = d:\app\DELL2

It's tnsnames.ora

# tnsnames.ora Network Configuration File: d:\app\DELL2\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

Please try with it:

ALTER system set local_listener ='(ADRESSE = (PROTOCOL=TCP) (HOST = hostname)(PORT=1521))';

I recommend you to change the value "localhost" to the hostname of the server.
Also try to ping the server name, example: ping serveroracle.com

Once the execute the alter system command, try again, please I hope your comments.

Published by: Francisco Riccio on 2013-ene-06 09:10

Listener refused the connection with the following error: 12505
Hello experts,

I am facing the problem for the last two days, when I'm trying to connect to the oracle with sql developer and Jdeveloper database. Previously, it was running fing.

The description of the detal problem is

To perform the requested operation, an error has occurred:

Listener refused the connection with the following error:
ORA-12505, TNS:listener is not currently of SID given in connect descriptor

Code provider 12505

I tested the following text, and every thing seems fine
==============================================================

E:\Users\Anutosh > lsnrctl services

LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on August 25, 2012 20:25:34

Copyright (c) 1991, 2010, Oracle. All rights reserved.

Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)))
Summary of services...
Service 'CLRExtProc' has 1 instance (s).
Instance of 'CLRExtProc', status UNKNOWN, has 1 operation for this service...
Managers:
"DEDICATED" set up: 0 denied: 0
LOCAL SERVER
The command completed successfully

E:\Users\Anutosh > lsnrctl status

LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on August 25, 2012 20:26:13

Copyright (c) 1991, 2010, Oracle. All rights reserved.

Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.1.0 - Production
Start date August 25, 2012 19:04:12
Uptime 0 days 1 hour 22 min 1 s
Draw level off
Security ON: OS Local Authentication
SNMP OFF
D:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\listener.ora Listener parameter file
D:\app\anutosh\diag\tnslsnr\MTECH\listener\alert\log.XML log listener
Summary of endpoints listening...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
(DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=127.0.0.1) (PORT = 1521)))
Summary of services...
Service 'CLRExtProc' has 1 instance (s).
Instance of 'CLRExtProc', status UNKNOWN, has 1 operation for this service...
The command completed successfully

E:\Users\Anutosh > tnsping orcl

AMT Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on August 25, 2012 21:35:44

Copyright (c) 1997, 2010, Oracle. All rights reserved.

Use settings files:
d:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\sqlnet.ora

TNSNAMES adapter used to resolve the alias
Try to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost) (PORT = 1521)) (CONNECT_DATA = (SERVER =

DED
(ED) (SERVICE_NAME = orcl)))
OK (20 ms)

Content of tnsnames.ora
---------------------------------------

tnsnames.ora # Network Configuration file: d:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)

ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost) (PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

Listener.ora
-------------------

listener.ora # Network Configuration file: d:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = d:\app\Anutosh\product\11.2.0\dbhome_1)
(= Extproc PROGRAM)
(ENVS = "EXTPROC_DLLS=ONLY:d:\app\Anutosh\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost) (PORT = 1521))
)
)

ADR_BASE_LISTENER = d:\app\Anutosh

Init.ora
------------

# Change '< ORACLE_BASE >' to point to the oracle base (that you specify to)
(# install times)

db_name = "ORCL".
memory_target = 1 G
process = 150
audit_file_dest =' < ORACLE_BASE > / admin/orcl/adump '
AUDIT_TRAIL = 'db '.
DB_BLOCK_SIZE = 8192
db_domain = "
db_recovery_file_dest =' < ORACLE_BASE > / flash_recovery_area'
db_recovery_file_dest_size = 2G
diagnostic_dest = "< ORACLE_BASE >.
Dispatchers ='(Protocol=TCP) (SERVICE = ORCLXDB)"
open_cursors = 300
Remote_login_passwordfile = 'EXCLUSIVE '.
undo_tablespace = 'UNDOTBS1.
# You can ensure that the control files are created on the separate physical
features of #.
control_files = (ora_control1, ora_control2)
' compatible ' 11.2.0 = ".
Rajat says:
How can I fix the ITI.
Could you please suggest anything.

no listener.ora file is necessary for the LISTENER to operate.
move, rename, delete, or remove the listener.ora file & then reboot the system.

each Oracle DB tries once every 60 seconds to register with EARPHONE as shown below
```
tail -10 /u01/app/oracle/product/11.2.0/dbhome_1/log/diag/tnslsnr/bcm-laptop/listener/alert/log.xml
 host_addr='127.0.0.1'>
 25-AUG-2012 12:58:48 * service_update * v112 * 0
 


 25-AUG-2012 12:59:18 * service_update * v112 * 0
 
```

Listener refused the connection with the following error: ORA-12505

Hello

Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor The Connection descriptor used by the client was: 127.0.0.1:1521:XE

Windows XP + Oracle 10.1.0.20

I checked my *.ora files and found the host 127.0.0.1 but I noticed by running the netstat command on prompt back most of my ports is captured by www.360.cn including 1521

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Thank you and best regards

Hello

[oracle@myoramachine ~]$ oerr ora 12505
12505, 00000, "TNS:listener does not currently know of SID given in connect descriptor"
// *Cause:  The listener received a request to establish a connection to a
// database or other service. The connect descriptor received by the listener
// specified a SID for an instance (usually a database instance) that either
// has not yet dynamically registered with the listener or has not been
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//  - Check which instances are currently known by the listener by executing:
//    lsnrctl services 
//  - Check that the SID parameter in the connect descriptor specifies
//    an instance known by the listener.
//  - Check for an event in the listener.log file.
[oracle@myoramachine ~]$

1. check the lsnrctl services

2 check the tnsping output:

tnsping MYORACLE

3. check the connectivity to the computer hosting your Oracle server to the port (I guess 1521):

Telnet 1521

4. in case you are not able to connect to the Oracle Server - I investigate it in several directions:

-problem of network infrastructure

-some process disturbing / virus on the server Oracle itself

-firewall problem

Good luck!

---------------------------------
http://DBA-star.blogspot.com/

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