ORA-12638: 身份证明检索失败

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最新推荐文章于 2025-01-08 10:00:00 发布 · 71 阅读

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本文介绍了解决Oracle连接中出现的ORA-12638错误的方法。该错误通常由于Oracle客户端尝试使用Windows域凭证进行认证而失败引起。通过禁用NTS选项并设置SQLNET.AUTHENTICATION_SERVICES为(NONE)，可以避免使用Windows凭证进行认证。

ORA-12638: 身份证明检索失败的解决办法

2008年06月25日星期三 11:42

the NTS option makes the Oracle client attempt to use your current Windows domain credentials to authenticate you with the Oracle server. This could fail for a couple of reasons:

- The Oracle server is not configured to support Windows authentication
- The credentials you use to login to your local machine are not sufficient to allow you to login to the server.

In my case, it was the later. Despite the fact that I had told the client to use a different user name and password, it was still attempting to login using my domain credentials first. This failed because I was logged on to my local machine using my normal domain credentials rather than my administrator account.

Replacing the line:

SQLNET.AUTHENTICATION_SERVICES= (NTS)

with

SQLNET.AUTHENTICATION_SERVICES= (NONE)

in sqlnet.ora resolved the issue by disabling local support for authenticating using Windows credentials.

ORA-12638: 身份证明检索失败的解决办法

今天在使用应用程序连接Oracle时碰到了 “ORA-12638: 身份证明检索失败” 错误，到网上搜索了一下，是因为Oracle的高级安全性验证导致，解决办法如下：

开始 -> 程序 -> Oracle -> Configuration and Migration Tools ->
Net Manager→本地→概要文件→Oracle高级安全性→验证→去掉所选方法中的 "NTS" 就可以了.