Working with operating system security

Operating systems provide security features that you can use to support security for your database installation.

Db2 and Windows security introduction
A Windows domain is an arrangement of client and server computers referenced by a specific and unique name; and, that share a single user accounts database called the Security Access Manager (SAM). One of the computers in the domain is the domain controller. The domain controller manages all aspects of user-domain interactions.
Db2 and UNIX security
There are some security considerations specific to UNIX platforms that you need to be aware of.
Db2 and Linux security
There are some security considerations specific to Linux® platforms that you might need to be aware of.