linux centos7环境下修改oracle19c监听IP并重启

1.问题描述

在linux服务器centos7上新安装的oracle 19c，结果发现客户端怎么都连不上。检查了下，发现原来是监听的端口采用默认配置为了LOCALHOST：

[[email protected] bin]$ netstat -an |grep 1521
tcp        0      0 127.0.0.1:1521          0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.1:56449         127.0.0.1:1521          ESTABLISHED
tcp        0      0 127.0.0.1:1521          127.0.0.1:56449         ESTABLISHED
unix  2      [ ACC ]     STREAM     LISTENING     108564   /var/tmp/.oracle/sEXTPROC1521
[[email protected] bin]$ 

可以看到监听端口的ip为127.0.0.1。是本地回环路由。其他服务器无法访问这个地址。
现在对这个问题进行修改：

2.修改listener.ora 文件

首先要修改listener.ora 文件。
该文件位于：

/opt/oracle/product/19c/dbhome_1/network/admin/listener.ora

vim这个文件：

# listener.ora Network Configuration File: /opt/oracle/product/19c/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.161.120)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

将上述文件的LOCALHOST修改为IP地址。

3.修改tnsnames.ora

同理，tnsnames.ora文件也需要修改：

# tnsnames.ora Network Configuration File: /opt/oracle/product/19c/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

ORCLCDB =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.161.120)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ORCLCDB)
    )
  )

LISTENER_ORCLCDB =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.161.120)(PORT = 1521))

3.重启oracle

切换到oracle用户：

[[email protected] admin]# sudo su - oracle
Last login: Thu Jul 21 16:50:06 CST 2022 on pts/0

查看监听状态：

[[email protected] ~]$ lsnrctl status

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 21-JUL-2022 17:19:59

Copyright (c) 1991, 2019, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.161.120)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date                21-JUL-2022 16:21:09
Uptime                    0 days 0 hr. 58 min. 50 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/oracle/product/19c/dbhome_1/network/admin/listener.ora
Listener Log File         /opt/oracle/diag/tnslsnr/mv161p120/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=mv161p120)(PORT=5500))(Security=(my_wallet_directory=/opt/oracle/admin/ORCLCDB/xdb_wallet))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "ORCLCDB" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
Service "ORCLCDBXDB" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
Service "e44dc6e87c454000e05378a1a8c0f895" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
Service "orclpdb1" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
The command completed successfully
[[email protected] ~]$ lsnrctl stop

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 21-JUL-2022 17:20:25

Copyright (c) 1991, 2019, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.161.120)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
The command completed successfully

之后用sqlplus连接：

[[email protected] ~]$ sqlplus /nolog
SQL*Plus: Release 19.0.0.0.0 - Production on Thu Jul 21 17:20:32 2022
Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected.

执行shutdown：

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0

启动监听：

[[email protected] ~]$ lsnrctl start

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 21-JUL-2022 17:21:39

Copyright (c) 1991, 2019, Oracle.  All rights reserved.

Starting /opt/oracle/product/19c/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 19.0.0.0.0 - Production
System parameter file is /opt/oracle/product/19c/dbhome_1/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/mv161p120/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.161.120)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.161.120)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date                21-JUL-2022 17:21:39
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/oracle/product/19c/dbhome_1/network/admin/listener.ora
Listener Log File         /opt/oracle/diag/tnslsnr/mv161p120/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.161.120)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully
[[email protected] ~]$ lsnrctl status

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 21-JUL-2022 17:21:46

Copyright (c) 1991, 2019, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.161.120)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date                21-JUL-2022 17:21:39
Uptime                    0 days 0 hr. 0 min. 7 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/oracle/product/19c/dbhome_1/network/admin/listener.ora
Listener Log File         /opt/oracle/diag/tnslsnr/mv161p120/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.161.120)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully

sqlplus连接并启动：

[[email protected] ~]$ sqlplus /nolog

SQL*Plus: Release 19.0.0.0.0 - Production on Thu Jul 21 17:21:53 2022
Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.

Total System Global Area 2466250400 bytes
Fixed Size		    9137824 bytes
Variable Size		  570425344 bytes
Database Buffers	 1879048192 bytes
Redo Buffers		    7639040 bytes
Database mounted.
Database opened.

4.测试

netstat验证：

[[email protected] admin]# netstat -an |grep 1521
tcp        0      0 192.168.161.120:1521    0.0.0.0:*               LISTEN     
unix  2      [ ACC ]     STREAM     LISTENING     126161   /var/tmp/.oracle/sEXTPROC1521
[[email protected] admin]# 

客户端配置：

之后客户端连接测试：