I’ve configured Oracle wallet successfully in my Linux server(Linux 2.6.32-642.4.2.el6.x86_64 GNU/Linux). When I try to execute the below command using Database connection string, it works perfect. $/sqlplus /@TESTDB SQL*Plus: Release 11.2.0.3.0 Production on Tue Oct 18 07:12:49 2016 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 – 64bit Production With the