Configuration instance of Oracle listener server and client

Listener.ora、tnsnames.ora These two files are often difficult to use because of format problems , I usually have a backup after configuration , In the future, just copy and change it ！ Hey ~~~

Because I usually use linux More often , So sometimes I will encounter sqlnet.ora There's something wrong with this file , Just delete it directly ~~

Sometimes in windows Bottomed oracle Of listener The service will not start , In this case , Go directly to oracle Of bin Find lsnrctl.exe That document , Run it directly , Don't close the pop-up window , That's all right. .

Oracle Server End Listener.ora file ( One instance)：

LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL=TCP)(HOST=hostname)(PORT=1521)) // Host name or IP And port settings ) ) )

SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = database1) // database1 For the database instance name (ORACLE_HOME = /opt/oracle/product/10.1.0) //oracle The installation directory , Change according to the installation (PROGRAM = extproc) ) )

Oracle Server End Listener.ora file ( Two instance)： LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL=TCP)(HOST=hostname)(PORT=1521)) ) ) ) SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = database1) // database1 For the database instance1 name (ORACLE_HOME = /opt/oracle/product/10.1.0) (PROGRAM = extproc) ) (SID_DESC = (SID_NAME = database2) // database2 For the database instance2 name (ORACLE_HOME = /opt/oracle/product/10.1.0) (PROGRAM = extproc) ) )

Oracle Server End listener start 、 stop it 、 View status command ：

$ lsnrctl start

$ lsnrctl stop

$ lsnrctl status

Oracle Client End Tnsnames.ora file ：

ORALOCAL = // Alias oralocal (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = hostname)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = database1) //database1 by SID name ) )

Oracle Client Check the connection status of the listener with the command ：

$ tnsping Alias

for example ： use oracle The user executes the command $ tnsping oralocal

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