How do I fix ORA-12541 TNS no listener?

How do I fix ORA-12541 TNS no listener?

First check the tnsnames. ora file and ensure that it points to the correct server and port. If the Forms server is on another machine, test the TNS resolve with tnsping from the command prompt. Finally, check the listener.

What means no listener?

The ORA-12541 message reads, “TNS no listener.” This happens if the listener is either down as it attempts to make a connection or if it has not been started or improperly configured. In addition, it may be caused by a connectivity problem with the network.

What does tna41 TNS no listener mean?

An ORA-12541 error occurs when the listener for the destination server is down or unreachable. 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 do you start a listener?

To start or stop the listener at the command line:

1. Open a command window.
2. Follow the steps listed in “Configuring the Operating System Environment Variables .”
3. Enter either of the following commands, depending on whether you want to start or stop the listener: lsnrctl start lsnrctl stop.

How do I bring up the listener in Oracle?

To start Oracle Net Listener, do the following:

1. Start the listener with the Listener Control utility.
2. Start the database, as follows:
3. Confirm that database service registration with the listener has completed using the Listener Control utility using the following command: LSNRCTL> SERVICES [listener_name]

How do I register a listener?

To register information with another local listener:

1. Configure the listener.
2. Configure the LOCAL_LISTENER parameter in the initialization parameter file to locate the local listener.
3. Resolve the listener name alias for the LOCAL_LISTENER or the LISTENER setting through a tnsnames.

How do I start the Oracle listener?

How do I start Lsnrctl?

To start the listener service, type the following command:

1. Solaris: lsnrctl START.
2. Windows: LSNRCTL. EXE start.

How do I use Lsnrctl?

Lsnrctl commands[edit]

1. Start a listener[edit] If the listener has not been started, start it with the command: lsnrctl> start listener_name.
2. Check listener status[edit] Check if a listener has been started on the remote node.
3. Check registered services[edit]
4. Stop a listener[edit]
5. Reload a listener[edit]

How do I turn my listener on?

Start the Oracle listener service.

1. Windows operating systems: Use the Services menu to start the Oracle TNS listener named OracleOraDb12_home1TNSListener . If the Oracle listener service is idle, start the listener.
2. UNIX and Linux operating systems: Enter these commands: # su – oracle # ./lsnrctl start.

How do you fix Ora 12545 Connect failed because target host or object does not exist?

ORA file to change the host name to a numeric IP address and try again. This TNS-12545 error is almost always an issue in your tnsnames. ora file, specifically your ADDRESS parameter, often a bad host name (node name). As a test for the DNS, temporarily replace the host name with the IP address, see here for details.

How do I manually create a listener in Oracle 12c?

In Oracle Database 12c Release 1 (12.1), the listener password feature is no longer supported….In the Addresses section, configure protocol support:

1. Click Add.
2. From the Protocol list, select the protocol on which the listener is configured to listen.
3. In Port, enter the port number.
4. In Host, enter the host address.