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SQLPLUS connection to database hangs when Vintela software is installed (Doc ID 419285.1)

Last updated on SEPTEMBER 17, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Linux x86
Linux x86
Quest Vintela Authentication Services (VAS)
Quest Vintela Group Policy (VGP)


Attempts to connect locally to the database using SQLPLUS hang. SQLPLUS launches successfully (i.e. sqlplus /nolog), however attempting to connect to the database from within SQLPLUS hangs.

A system call trace of the SQLPLUS client process (e.g. using strace, truss) denotes the following output:


Quest Vintela Authentication Services (VAS) and Vintela Group Policy (VGP) were recently implemented within the environment. VAS/VGP are third-party authentication software, a description of which is available from


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