Similar Questions

• TNS-12535 Mac for Win7x64

  I have an installation of Oracle 11.2.0 (SID = JORA11) on my Windows 7 Pro 64 bit desktop. This installation seems in good shape and I can run SQL Plus, SQL and OEM developer locally without problem, as well as Java applications that connect to the JORA11. I also have VMWare Workstation 7.1.4 installed on the same machine. I can run inside VMWare virtual machines, and these too can connect to JORA11.
  
  I have an installation of Oracle 10.2.0 (SID = JORAMAC) on my Macbook Pro to snow Leapoard (10.6). This installation seems in good shape and I can run SQL Plus, SQL Developer locally without problem, as well as Java applications that connect to the JORAMAC. OEM is not supported on Mac and will not without surprise.
  
  Both machines have static IP addresses on my network, and both machines are entered in tnsnames.ora that refer to each other.
  
  The physical machine to Windows 7, I can successfully tnsping JORAMAC on the Macbook. I can also connect to sqlplus and run Java applications that connect to the database of remode with JDBC.
  
  For the Mac, I get TNS-12535 TNS operation timed out when attempting to tnsping JORA11.
  
  My first thought was the Windows7 firewall so I opened port TCP 1521, but this resulted in no change. I then turned off the firewall of Windows 7 and tnsping returned listener TNS-12541 No..
  
  It is of course running and returns lsnrctl status on the W7 machine
  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 21 - SEP - 2011 09:21:13
  Uptime 0 days 0 h 53 min 0 sec
  Draw level off
  Security ON: OS Local Authentication
  SNMP OFF
  Listener parameter File C:\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora
  C:\oracle\diag\tnslsnr\W7HOSTPC\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...
  Service 'JORA11XDB' has 1 instance (s).
  'Jora11' instance, State LOAN, has 1 operation for this service...
  Service 'jora11' has 1 instance (s).
  'Jora11' instance, State LOAN, has 1 operation for this service...
  The command completed successfully
  
  The problem as I, I faced, it's that I don't know what are the factors actually influence the inability to connect. Firewall Windows 7 is undoubtedly part of the question, but certainly not all of it. Has anyone successfully opened for incoming data base access and if so, would you share the settings?
  VMWare can have an impact as well. Certainly, it interferes with the host machine network stack as it installs a number of private network adapters. They do not interfere with the OEM which tends to be very fragile in regard to the config network, but not that they interfere with the incoming connections and the listener? If anyone has an installation of VMWare Workstation on a server Oracle 11 database works, I would be grateful to learn what was needed to make it work.
  Different versions of Oracle can also have an impact. I would hope not, but maybe 10g installed on a Mac client software has problems, talk to a 64 bit 11 g on Windows Server? Someone has used this topology and saw operate?
  I doubt that it's all there is to it so there is all the things I didn't think...
  
  Try to anticipate questions, the segment of tnsnames.ora on Mac related to Oracle on the Windows 7 host that cannot be used is:
  JORA11 =
  (DESCRIPTION =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.100)(PORT = 1521))
  )
  (CONNECT_DATA =
  (SERVICE_NAME = JORA11.dev.datb.com)
  )
  )
  
  and tnsnames.ora on the Windows host segment related to Oracle on the Mac and that CAN be used:
  JORAMAC =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.70)(PORT = 1521))
  (CONNECT_DATA =
  (SERVER = DEDICATED)
  (SERVICE_NAME = JORAMAC.dev.datb.com)
  )
  )
  
  I would be very grateful if anyone has gems of knowledge to be transmitted.
  
  Thank you very much
  Jerry

  Can you post listener.ora on both machines? I still think you have a problem with addresses of localhost/127.0.0.1.

  First problem is the firewall and TNS-12535 is a clear indicator. You disabled the firewall (you can reach the Windows machine) and now you get ORA-12541. There is a note on metalink/MOS:

  Unable to connect to a headset using only Localhost: ORA-12541 [ID 279608.1]

  He said listeners defined as if running on localhost only isn't reachable remotely (from version 9.2.0.5). It would be surprising - in the case of same configuration on both nodes - if it works on Mac, but Windows not.

• ORA-12170: TNS: Connect timeout occurred Description: an unhandled exception occurred during the execution of the current web request. P

  Hello

  I deployed a simple asp.net application in a sharepoint wfe Server

  Client 32-bit installed oracle 12

  32-bit Oracle Data Access Components (ODAC)
  with Oracle Developer Tools for Visual Studio

  bit alias 32 and 54 sql set up in all the sharepoit servers to connect to sql server

  SharePoint farm works very well

  ASP.net application to connect to sql server and oracle dbs to get and display the data

  in iis, asp.net application compatible 32-bit and executed under asp.net version 4.0

  When I connect to sql server and a data base of data it displays error below

  ORA-12170: TNS: Connect timeout occurred

  Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and its origin in the code.

  Exception details: System.Data.OleDb.OleDbException: ORA-12170: TNS: Connect timeout occurred

  Source error:

  Line 4142: Dim da2 as new OleDbDataAdapter (sqlStr2, conStr2)
  Line 4143: Dim ds2 As New DataSet
  Line 4144: da2. Fill (DS2)
  Line 4145:
  4146 line: DropDownList38.DataSource = ds2

  Source file: C:\inetpub\wwwroot\wss\VirtualDirectories\lxxxx\xxx.ascx.vb line: 4144

  Stack trace:

  a common cause of Timeout is a firewall on or between customer & dbserver

  What was the last time it worked without error?

  What has changed since then?

• ORA-12170: TNS: Connect timeout occurred on the same host as DB

  Hello

  I just installed Oracle on mu Ubuntu 12.4 following the instructions here:

  http://www.Makina-corpus.org/blog/HOWTO-install-Oracle-11g-Ubuntu-Linux-1204-precise-pangolin-64bits

  and here:

  Install Oracle 11 GR 2 on Ubuntu 12.04 of the databases

  However, when I try to log on to the database, I created during installation using sqlplus, it hangs for a minute or two until it-error:

  ORA-12170: TNS: Connect timeout occurred.

  My tnsnames.ora:

  MYSIS =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP)(HOST = my_host) (PORT = 1521))
  (CONNECT_DATA =
  (SERVER = DEDICATED)
  (SERVICE_NAME = mysids)
  )
  )

  I checked that the listener is running and listening to the post 1521:

  s$ sudo netstat - tulpn | grep 1521

  tcp6 0 0: 1521: * LISTEN 16732/tnslsnr

  $ ps - ef | grep 16732

  Oracle 16732 1 0 06:58?        00:00:00 /opt/oracle/product/11.2.0/dbhome_1/bin/tnslsnr EARPHONE-inherit

  Thoughts?

  Finally managed to do run. The problem was that I have not read rights to tnsnames.ora.

• RMAN-04004: recovery catalog database error: ORA-12170: TNS: connect the ti

  Hello:
  
  Last night ' RMAN backup error: ' RMAN-04004: recovery catalog database error: ORA-12170: TNS: Connect timeout.
  
  I can sqlplus to the target database and the catalog database. The listener is in place. What is the problem? What should I check?
  
  Thanks in advance for your help.

  in the oratest/orapass@rmandb1 CATALOG,.

  rmandb1 is the name of the service. normally the name of the service and the name of db are kept same.

  check rmandb1 tnsping where you try to run ' RMAN TARGET / CATALOG oratest/orapass@rmandb1 "command.

  as optput will get the ip address of the server on which db is resident, no port, Protocol

  as

  ---------

  [Oracle@RAC3 ~] $ tnsping orcl

  AMT Ping utility for Linux: Version 10.2.0.5.0 - Production on December 23, 2011 21:12:20

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

  Use settings files:
  /opt/app/Oracle/product/DB/10.2.1/network/admin/SQLNET.ora

  TNSNAMES adapter used to resolve the alias
  Try to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = rac3.rajesh.com) (PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
  OK (10 ms)
  -------------------------------

  Here the HOST = rac3.rajesh.com is the present db Server

  Published by: Rajesh.Rathod on December 23, 2011 07:43

• ORA-12170 TNS: Connect timeout occurred

  Hi Experts,

  While trying to connect via TOAD, sqldevloper to my database, I get the following error: -.

  ORA-12170 TNS: Connect timeout occurred

  The listener.ora file content: -.

  [oracle@gdlogidb1 admin] $ cat listener.ora

  listener.ora # Network Configuration file: /mnt/PRDdata/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora

  # Generated by Oracle configuration tools.

  LOGDEV =

  (DESCRIPTION_LIST =

  (DESCRIPTION =

  (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1525))

  (ADDRESS = (PROTOCOL = TCP (PORT = 1525))(HOST = gdlogidb1.tireco.com))

  )

  LOGDEV =

  (DESCRIPTION =

  (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1525))

  (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.18)(PORT = 1525))

  )

  ADR_BASE_LOGDEV = / mnt/PRDdata/oracle

  The listener status: -.

  [oracle@gdlogidb1 admin] $ lsnrctl status LOGDEV

  LSNRCTL for Linux: Version 11.2.0.2.0 - Production on August 29, 2013 03:13:15

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

  Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1525)))

  STATUS of the LISTENER

  ------------------------

  Alias LOGDEV

  Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production

  Start date August 29, 2013 03:05:32

  Uptime 0 days 0 h 7 min 43 sec

  Draw level off

  Security ON: OS Local Authentication

  SNMP OFF

  Parameter Listener of the /mnt/PRDdata/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora file

  The listener log file /mnt/PRDdata/Oracle/diag/tnslsnr/gdlogidb1/logdev/alert/log.XML

  Summary of endpoints listening...

  (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC1525)))

  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp (PORT = 1525))(HOST=192.168.2.18)))

  Summary of services...

  Service 'logdev.tireco.com' has 1 instance (s).

  "Logdev" instance, State LOAN, has 1 operation for this service...

  Service 'logdevXDB.tireco.com' has 1 instance (s).

  "Logdev" instance, State LOAN, has 1 operation for this service...

  The command completed successfully

  TNSping works fine too.

  [oracle@gdlogidb1 admin] $ tnsping LOGDEV

  AMT Ping utility for Linux: Version 11.2.0.2.0 - Production on August 29, 2013 03:35:14

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

  Use settings files:

  /MNT/PRDdata/Oracle/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 = gdlogidb1.tireco.com) (PORT = 1525)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = logdev.tireco.com)))

  OK (0 msec)

  I can connect it is, but the problem occurs when I try to connect using TOAD or Sqldevloper.

  [oracle@gdlogidb1 admin] $ sqlplus system@LOGDEV

  SQL * more: Production of liberation 11.2.0.2.0 Thu Aug 29 03:32:15 2013

  Copyright (c) 1982, 2010, Oracle.  All rights reserved.

  Enter the password:

  Connected to:

  Oracle Database 11 g Release 11.2.0.2.0 - 64 bit Production

  SQL > user sho

  The USER is 'SYSTEM '.

  Content of the sqlnet.ora: -.

  [oracle@gdlogidb1 admin] $ cat sqlnet.ora

  sqlnet.ora # Network Configuration file: /mnt/PRDdata/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora

  # Generated by Oracle configuration tools.

  NAMES. DIRECTORY_PATH = (TNSNAMES, EZCONNECT)

  ADR_BASE = / mnt/PRDdata/oracle

  My Version of operating system is:- 11.2.0.2.0

  Platform: -.

  Gdlogidb1.tireco.com 2.6.39 - 400.109.4.el6uek.x86_64 #1 SMP Linux kill Jul 22 11:44:00 CDT 2013 x86_64 x86_64 x86_64 GNU/Linux

  Hello

  The error was taken neat but thanks for the reply. The quick fix is to disable the firewall.

  First login as a superuser.

  # service iptables save
# service iptables stop
# chkconfig iptables offe

  Thank you

  Ankur

• managing the Oracle ERROR ORA-12170: TNS: Connect timeout occurred

  Hello all dear
  
  We have a server that is responsible for collecting data from some customers. In each of these devices, we have installed Oracle 11.2 g and that they are connected via DB-link. There is a stored procedure that test the connection before doing this either by running the command (+ select count (*) of dual@db_link1+). In the situations that one of the clients is not accessible, this ORA-12170 error occurred and there will be an end to MS. Now, I want to avoid this and want to sp jump this client and connect to another. I wonder if there is an exception that is raised by this fatal error and we can do it.
  
  Thank you

  >

  I wonder if there is an exception that is raised by this fatal error and we can do it.

  Thank you

  You know what is the exception: it is 12170. So can you not name and use it in a normal EXCEPTION clause? http://docs.Oracle.com/CD/E11882_01/AppDev.112/e25519/errors.htm#sthref889

• Listener.ora and TNS.ora in simple language

  Please explain Listener.ora and TNS.ora in simple language. I read a lot of blogs, but just not able to define in words.
  
  Also, there are different sections in them, so that they or represent?
  
  PROGRAM = extproc
  Protocol
  Host
  Port
  
  =================================================================
  listener.ora # Network Configuration file: E:\ORACLE\product\10.2.0\db_1\network\admin\listener.ora
  # Generated by Oracle configuration tools.
  
  SID_LIST_TEST =
  (SID_LIST =
  (SID_DESC =
  (SID_NAME = PLSExtProc)
  (ORACLE_HOME = E:\ORACLE\product\10.2.0\db_1)
  * (= Extproc program) *.
  )
  )
  
  TEST =
  (DESCRIPTION_LIST =
  (DESCRIPTION =
  * (ADDRESS = (PROTOCOL = TCP) (HOST = RICHA-PC)(PORT = 1521)) *.
  * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0)) *.
  )
  )
  
  =================================================================
  tnsnames.ora # Network Configuration file: E:\ORACLE\product\10.2.0\db_1\network\admin\tnsnames.ora
  # Generated by Oracle configuration tools.
  
  EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
  (ADDRESS_LIST =
  * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0)) *.
  )
  (CONNECT_DATA =
  (SID = PLSExtProc)
  (PRESENTATION = RO)
  )
  )
  
  =================================================================
  
  Published by: Richa on April 24, 2012 12:29

  Program ==> identify the name of the service executable program.

  Protocols ==> protocols specify the interactions between the communicating entities. A protocol is the set of rules that use endpoints in a context of communication when they communicate special.
  http://en.Wikipedia.org/wiki/Communications_protocol

  Host name of the machine where db is cobfigured ==>.

  Port ==> port is just an interface (or for example, we can imagine our telephone jack on the phone) between two computers or two software. Thus, if two computers to talk to each other, each of them should communicate through a port.
  http://Neeraj-DBA.blogspot.in/2011/03/what-is-port.html

  Neeraj-

• Oracle 10g on Windows 7: TNS-12535: TNS:operation expired

  I installed Oracle 10 g (Version 10.2.0) on Windows 7 Professional on my laptop. Everything installed correctly, but I simply can't have a communication client-Oracle course. For some reason, TNSPing guard time outside, the following:
  
  C:\Users\Bruce > tnsping orcl
  
  AMT Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 13-SEP-2
  010 17:00:09
  
  Copyright (c) 1997, 2005, Oracle. All rights reserved.
  
  Use settings files:
  F:\oracle\product\10.2.0\client_1\network\admin\sqlnet.ora
  
  
  TNSNAMES adapter used to resolve the alias
  Try to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
  (HOST = Office Bruce) (PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ORCL)))
  TNS-12535: TNS:operation expired
  
  I use DHCP on my home network, but I have disabled the firewall for this exercise. Also, I put in place a static = 192.168.100.100 loopback connector
  
  Here's SQLNET. ORA:
  
  SQLNET. AUTHENTICATION_SERVICES = (NTS)
  
  NAMES. DIRECTORY_PATH = (TNSNAMES)
  
  
  Here's the TNSNAMES file. ORA:
  
  ORCL =
  (DESCRIPTION =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = TCP) (HOST = Bruce-Office)(PORT = 1521))
  )
  (CONNECT_DATA =
  (SERVICE_NAME = ORCL)
  )
  )
  
  EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1))
  )
  (CONNECT_DATA =
  (SID = PLSExtProc)
  (PRESENTATION = RO)
  )
  )
  
  
  This is the LISTENER. ORA:
  
  SID_LIST_LISTENER01 =
  (SID_LIST =
  (SID_DESC =
  (SID_NAME = PLSExtProc)
  (ORACLE_HOME = F:\oracle\product\10.2.0\db_2)
  (= Extproc PROGRAM)
  )
  )
  
  LISTENER01 =
  (DESCRIPTION_LIST =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP) (HOST = Bruce-portable)(PORT = 1521))
  )
  )
  
  Any help or advice on how to diagnose and fix this problem would be greatly appreciated!
  
  Thank you.

  Hi Bruce,.

  >
  My question is this: that this path should I take to install 11g?
  >

  Extract the files in a directory of your choice. The extracted files are the installation of Oracle files. You will use the installer from this directory.

  >
  (1) make a FULL install 11 g on the existing (but defective!) version 10 g?
  >

  Is not ideal. You are much better to get rid of (uninstall) 10 g.

  >
  (2) uninstall (ugh!) the existing 10g version and THEN install the full version of 11g?
  >

  Yes, certainly. This version is not yet compatible with your version of Windows. After you have installed has the potential to cause problems.

  >
  (3) simply perform an UPGRADE to 10 g - 11 g? (Which is possible using these 11 g installation files?)
  >

  No. 10g of uninstall, restart with 11g

  HTH,

  John.

• ORA-12170 of the client after installing 12102

  I installed 12102 on Linux.  In all my 11g install, our standard is to use dynamic record for each instance in the listener.  Then you remove the listener.ora file which allows dynamic registration in 11g.  We also use a listener shared by server... so I disabled the LOCAL_LISTENER parameter by alter system set local_listener = ";  I have found no record of this has changed in the 12 c install.  I found that a new process LREG registers the instance instead of PMON... but it's all working.  My cases are recorded in the listener... yet I can't connect from a client or another server using the standard tnsnames.ora.  What Miss me?  Nothing don't watch even in my journal of the listener that is trying to connect...

  ORA-12170 is one out of connection time.

  From there, we can draw some conclusions

  (1) your network service name WAS resolved to a connection string - left the tnsnames or a direct specifications.  We know because the request got fairly far from actually solved in a host address and an attempt was made to send the request to the specified host.

  (2) most likely, your application never made to the host.  He timed out waiting for a response from the host, he would have received if the request had never got there.  If the request had gotten to the listener, then failed for some reason, the error would be different.

  So, what does this leave us with?

  (1) the HOST = specification in your clien t tnsnames (or another method of specifying) is invalid, pointing to a non-existent host

  (2) there is a firewall blocking the transmission of your client to your HOST

• ORA-12170: how to connect both ways 2 Oracle DB

  Hi all.

  I got the laptop Win7 64 bit and installed Oracle 11.2.0.1 32 bits. (sid = orcl, ip 192.168.1.101 =)

  Then I installed VM box and installed Windows XP as the guest operating system.

  Inside, I installed other Oracle 11.2.0.1 (sid = orclA, ip 192.168.1.102)

  I tried to connect the 2 database, but I had error ora-12170 round-trip

  I can ping both directions.

  Are there necessary permission grants on the side Win7 & WinXP so that my 2 databases can talk to each other?

  It seems to block the connection. I have already disabled the firewall.

  Please helppppp...

  Thank you very much

  zxy

  yxes2013 wrote:

  Yes, I keep forgetting that he should be the default value "always". How can I change/update it to a question?

  You have only 15 minutes after creating threads to (UN) mark a discussion as matter. As moderator, I made the change for you.

  Nicolas.

• Return: 12541 - ORA-12541: listener TNS:no

  I could not able to connect thorugh Data Mover and Appdesigner. I'm below errro
  
  File: Error SQL Access ManagerSQL. Stmt #: 2 error Position: 0 return: 12541 - ORA-12541: listener TNS:no
  
  But I can't able to connect through SQL DEVELOPER.
  
  Also, I can see DB different name in select * from database v$; Select * from Psalm OSDBOWNER;
  
  I put the name PSDBOWNER as 'PSHRDEV' but when I fire ' select * v database $; ' I see 'PSHRQUE '.

  The name of your database is "PSHRQUE". So you can update the PSDBOWNER table also.

  I guess you did an update of the database. So, you have different value in the PSDBOWNER table.

  Thank you
  Jean-Marc

• ORA 12170: Connection timeout error: need help

  Hello
  
  The scenario is this: I have Oracle 11 g R2 installed on a server to Windows Server 2008 (32-bit). The database SID is "PGM". I am access (or want to access remotely to) the Oracle database in Visual Studio 2008 (customer environment) development environment running on a Windows XP (SP3) platform. I have already installed the package of the ODAC (ver. 11.2.0.2.1) for the Visual Studio environment.
  
  I created a sample Windows Forms application that uses the Oracle data access components. The example of HR schema in the Oracle database is already unlocked. This is the pattern that I use in the application.
  
  The issue that I am facing is that when I add the data connection in the Visual Studio environment. Feature "Test connection" returns the following error: ORA-12170 ... Connection has expired.
  
  I checked the TNSNAMES file. File of the ORA and everything is as listed in the Oracle documentation. It's as follows:
  
  PGM =
  (DESCRIPTION =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.0.161)(PORT = 1521))
  )
  (CONNECT_DATA =
  (SERVICE_NAME = EGP)
  )
  )
  
  Please ask the community to help me overcome the error and making a link successfully. We have a system administrator, but not a database administrator. Oracle installation was made by me.
  
  Thank you
  Renj
  ----------

  Try adding a PGE in the SID_LIST_LISTENER of the listener.ora file and that you can do using the Net Manager and its operation is explained here

  http://download.Oracle.com/docs/CD/B10500_01/network.920/a96580/admintoo.htm

• ORA - 12170 - Connection Timeout

  Hello
  
  Problem - I am using TOAD on my computer to connect to my database, but gives the error "Ora-12170, Connection Timeout".
  
  Explanation - I installed Oracle InstantClient 10.2 on the local computer and using this default home home to connect to the target instance.
  Here, the thing is, I can't able to PING to the UNIX machine but cannot able to establish the database connection.
  Made the WAY system LNS_LANG variables...
  Created TNSNAME. ORA in instantClient with appropriate entries.
  
  
  
  Any help is like the wind of heaven... stuck here for a long time...
  Thank you and best regards,
  Madhav
  
  Published by: user13155845 on May 31, 2010 02:48

  oracle client is not installed on your local computer?

  Try this

  Telnet ip_address 1521

  for example

  Telnet 10.200.19.18 1521

• ORA-01033 and ORA-01113: file 1 should support recovery errors

  I ORA-01033 and ORA-01113: file 1 needs media recovery errors, I tried using the Recovery Manager to without result I got after a long wait of cataloging files... is ORA-19870: ERROR READING BACKUP PIECE, ORA-19501: READ ERROR ON LINE, ORA-27070: ASYNC READ/WRITE failed, OSD-04016: ERROR QUEUING ASYNCHRONOUS IO YEAR ASKS... then... switch to the previous backup... then RMAN-00571. 00569; 03002; 06026; 9 06023: I've exhausted all the advice that I know... PLS HELP

  Start rman and connect to the database

  rman target /
  

  Once connected, run

  list backup;
  

  If you don't find listed backup, you can use the catalog command to manually add information rman backup in the rman repository
  http://docs.Oracle.com/CD/E11882_01/backup.112/e10643/rcmsynta008.htm