在局域网中远程连接oracle时,一直提示拒绝连接,在确定防火墙关闭,oracle服务器监听端口开启的情况下,可能的错误就是oracle的监听IP地址不是预设的那样,而是本地的127.0.0.1。
排错过程不再细说,这里只分享由于主机名不正确而导致oracle拒绝连接的解决办法。
一、修改hosts文件
打开cmd,输入hostname,记下主机名 用记事本打开c:\windows\system32\drivers\etc\hosts 文件,添加主机名。
- <code class="hljs vala"># Copyright (c) 1993-2009 Microsoft Corp.
- # This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
- # This file contains the mappings of IP addresses to host names. Each
- # entry should be kept on an individual line. The IP address should
- # be placed in the first column followed by the corresponding host name.
- # The IP address and the host name should be separated by at least one
- # space.
- #
- # Additionally, comments (such as these) may be inserted on individual
- # lines or following the machine name denoted by a '#' symbol.
- # For example:
- # 102.54.94.97 rhino.acme.com # source server
- # 38.25.63.10 x.acme.com # x client host
- # localhost name resolution is handled within DNS itself.
- # 127.0.0.1 localhost
- # ::1 localhost
- [主机IP] [主机名]</code>
二、修改oracle监听文件
1、打开listener.ora
文件在F:\app\young\product\11.2.0\dbhome_1\NETWORK\ADMIN 目录下,将里面的localhost换为自己的主机名。
- <code class="hljs vala"><code class="hljs tex"># listener.ora Network Configuration File: F:\app\young\product\11.2.0\dbhome_1\network\admin\listener.ora
- # Generated by Oracle configuration tools.
- SID_LIST_LISTENER =
- (SID_LIST =
- (SID_DESC =
- (SID_NAME = CLRExtProc)
- (ORACLE_HOME = F:\app\young\product\11.2.0\dbhome_1)
- (PROGRAM = extproc)
- (ENVS = "EXTPROC_DLLS=ONLY:F:\app\young\product\11.2.0\dbhome_1\bin\oraclr11.dll")
- )
- )
- LISTENER =
- (DESCRIPTION_LIST =
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
- (ADDRESS = (PROTOCOL = TCP)(HOST = Young-PC)(PORT = 1521))//Young-PC原为localhost
- ) ) ADR_BASE_LISTENER = F:\app\young</code></code>
2、修改tnsnames.ora
目录同上,也将localhost更改为主机名。
- <code class="hljs vala"><code class="hljs tex"><code class="hljs tex"># tnsnames.ora Network Configuration File: F:\app\young\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
- # Generated by Oracle configuration tools.
- LISTENER_ORCL =
- (ADDRESS = (PROTOCOL = TCP)(HOST = Young-PC)(PORT = 1521))//Young-PC原为localhost
- ORACLR_CONNECTION_DATA =
- (DESCRIPTION =
- (ADDRESS_LIST =
- (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
- )
- (CONNECT_DATA =
- (SID = CLRExtProc)
- (PRESENTATION = RO)
- )
- )
- ORCL =
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = TCP)(HOST = Young-PC)(PORT = 1521))//Young-PC原为localhost
- (CONNECT_DATA =
- (SERVER = DEDICATED)
- (SERVICE_NAME = orcl)
- )
- )</code></code></code>
3、重启tnslsnr。
打开cmd,输入以下命令。
- <code class="hljs vala"><code class="hljs tex"><code class="hljs tex"><code class="hljs sql">lsnrctl stop
- lsnrctl start
- lsnrctl stat</code></code></code></code>
再次远程连接,已经可以连上了,成功。