Oracle监听更改端口以进行远程连接

Question

我安装了Oracle 11gR2，现在尝试从远程系统访问数据库。

我的listener.ora仍然是默认值：

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

ADR_BASE_LISTENER = /media/oracle/app/oracle

./lsnrctl服务返回以下内容：

oracle@ubuntu:/media/oracle/app/oracle/product/11.2.0/dbhome_1/bin$ ./lsnrctl services

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 05-MAY-2010 05:00:49

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
Services Summary...
Service "gis.c2c" has 1 instance(s).
  Instance "gis", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
Service "gisXDB.c2c" has 1 instance(s).
  Instance "gis", status READY, has 1 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:0 max:972 state:ready
         DISPATCHER <machine: ubuntu, pid: 2916>
         (ADDRESS=(PROTOCOL=tcp)(HOST=ubuntu.localdomain)(PORT=47616))
The command completed successfully

我无法使用端口1521进行远程连接，但是上面列出的端口47616可以使用。 我不介意使用不同于1521的端口，但是问题是此端口在每次重新启动时都会更改。

怎么了？

谢谢！

Answer 1

这不是编程问题，也许它属于serverfault。

但是，我会想到以下几点：

本地主机是在/ etc / hosts中定义的吗？ 而且，如果要从网络访问侦听器，则不应在本地主机上侦听，而应在外部地址上侦听。

1521端口可用吗？ 通过运行netstat -tlnp进行验证。