cognos 连不上业务库

Cognos Error 'QE-DEF-0285 The logon failed' When Testing DB2 Datasource Connection on Linux
Technote (troubleshooting)

Problem(Abstract)
Unable to setup a test datasource connection between Cognos and the DB2 database in a Linux environment.
Symptom
QE-DEF-0285 The logon failed.
QE-DEF-0325 The logon failed for the following reason:
RQP-DEF-0068 Unable to connect to at least one database during a multi-database attach to 1 database(s) in:
    testDataSourceConnection

UDA-SQL-0569 Unable to load the driver manager library ( libdb2.so ).
UDA-SQL-0571 The operating system returned an error message ( libdb2.so: cannot open shared object file: No such file or directory ).
BME-EX-0144 Trace back:
BmtPlayTransaction.cpp(738): QFException: CCL_RETHROW: BmtPlayTransaction::DoAction
BmtActionsHelper.cpp(466): QFException: CCL_RETHROW: BmtActionsHelper::DoAction
QFSSession.cpp(630): QFException: CCL_RETHROW: QFSSession::ProcessDoRequest()
QFSSession.cpp(628): QFException: CCL_CAUGHT: QFSSession::ProcessDoRequest()
QFSSession.cpp(1380): QFException: CCL_RETHROW: QFSSession::SessionProcessTestConnection()
Source/QE_RsApi.cpp(2064): QFException: CCL_RETHROW: QE
Source/QEI_ConnectionFault.cpp(807): QFException: CCL_THROW: QE
Cause
DB2 Client library may not be sourced properly.
Resolving the problem
Within the DB2 client install directory,
1:add "/opt/ibm/db2/V9.5/lib32" to /etc/ld.so.conf and issue the ldconfig command to regenerate Dynamically linked libraries.

2：关闭高级防火墙。