DB2 10.5 for Linux, UNIX, and Windows

DB2 and Linux security

There are some security considerations specific to Linux platforms that you might need to be aware of.

Change password support (Linux)
DB2® database products provide support for changing passwords on Linux operating systems.
Deploying a change password plug-in (Linux)
To enable support for changing passwords in DB2 database products on Linux, you must configure the DB2 instance to use the security plug-ins IBMOSchgpwdclient and IBMOSchgpwdserver.