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PL/SQL Developer log in when reported ORA-12638: Identity certificate retrieval failed

Source: Internet
Author: User
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There are two ways to find it online:

1. Through Configuration and migration Tools

Net manager→ local → profile →oracle Advanced Security → validation → Remove the "NTS" in the selected method, the key is to not restart the database.

2. Locate the installation directory: App/product/10.2.0/dbhome_1/network/admin Open Sqlnet.ora

Find Sqlnet in there. Authentication_services= (NTS)
Change it to: sqlnet. Authentication_services= (Beq,none)

or comment out: #SQLNET. Authentication_services= (NTS). This method needs to restart the database, the project operation should be used with caution.

PL/SQL Developer log in when reported ORA-12638: Identity certificate retrieval failed

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