You can customize the security mechanisms to meet your individual needs, instead of relying on a standard facility like the operatingsystem.
不必依赖于操作系统之类的标准设施，相反，可以定制安全性机制以满足自己的需求。
2
The important point to remember is that these accounts are defined in a security facility outside of DB2 UDB — typically the operatingsystem.
要记住的重点是，这些帐号是在DB 2 UD b外的安全设施中定义的——通常是操作系统。
3
User and group authentication is managed in a facility external to DB2, such as the operatingsystem, a domain controller, or a Kerberos security system.