[Oracle Database] 데이터베이스 감청 및 연결

     --        
[oracle@wallet01 ~]$ sqlplus / as sysdba
SQL> show parameter service_names;
NAME                                 TYPE                              VALUE
------------------------------------ --------------------------------- ------------------------------
service_names                        string                            wallet

     --         
SQL> show parameter instance_name

NAME                                 TYPE                              VALUE
------------------------------------ --------------------------------- ------------------------------
instance_name                        string                            wallet

     --     
SQL> show parameter db_name

NAME                                 TYPE                              VALUE
------------------------------------ --------------------------------- ------------------------------
db_name                              string                            wallet

   
[oracle@wallet01 ~]$ cd $ORACLE_HOME/network/admin
[oracle@wallet01 admin]$ cat listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = wallet01)(PORT = 1521))  --  ,  ,  
    )
  )
ADR_BASE_LISTENER = /u01/app/oracle

[oracle@wallet01 ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 09-MAY-2019 10:43:13

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Starting /u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/wallet01/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=wallet01)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=wallet01)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date                09-MAY-2019 10:43:13
Uptime                    0 days 0 hr. 0 min. 5 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/wallet01/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=wallet01)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully

[oracle@wallet01 ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 09-MAY-2019 10:44:44

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=wallet01)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date                09-MAY-2019 10:43:13
Uptime                    0 days 0 hr. 1 min. 31 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/wallet01/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=wallet01)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "wallet" has 1 instance(s).
  Instance "wallet", status READY, has 1 handler(s) for this service...
Service "walletXDB" has 1 instance(s).
  Instance "wallet", status READY, has 1 handler(s) for this service...
The command completed successfully

   (      )
[oracle@wallet02 ~]$ cd $ORACLE_HOME/network/admin
[oracle@wallet02 admin]$ cat tnsnames.ora 
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

wallet =     --     (     )        
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.201)(PORT = 1521))   --  ,  ,  
    (CONNECT_DATA =
      (SERVER = DEDICATED)   --       
      (SERVICE_NAME = wallet)    --        
    )
  )

[oracle@wallet02 ~]$ sqlplus sys/oracle@wallet as sysdba    --   /  @     (     )

SQL*Plus: Release 11.2.0.4.0 Production on Fri Jun 29 10:06:52 2018

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from dual;

DUM
---
X

  :listener.ora      ,  ,  ,   PMON        ,
 tnsnames.ora      ,  ,  ,         ,                。

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