在局域網中遠程連接oracle時,一直提示拒絕連接,在確定防火牆關閉,oracle服務器監聽端口開啟的情況下,可能的錯誤就是oracle的監聽IP地址不是預設的那樣,而是本地的127.0.0.1。
排錯過程不再細說,這裡只分享由於主機名不正確而導致oracle拒絕連接的解決辦法。
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# 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
[主機IP] [主機名]
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修改oracle監聽文件
1、打開listener.ora,文件在F:\app\young\product\11.2.0\dbhome_1\NETWORK\ADMIN 目錄下,將裡面的localhost換為自己的主機名。
# 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原為localhost
) ) ADR_BASE_LISTENER = F:\app\young
2、修改tnsnames.ora,目錄同上,也將localhost更改為主機名。
# 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原為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原為localhost
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
3、重啟tnslsnr。
打開cmd,輸入以下命令。
lsnrctl stop
lsnrctl start
lsnrctl stat
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再次遠程連接,已經可以連上了,成功。