Password file-base authentication: authentication is based on the password and shadow files or interaction with NetworkInformationSystem (NIS), on the machine where the database server is installed.
基于密码文件的身份验证：身份验证基于安装数据库服务器的机器上的密码和影子文件，或者与Net work Information System (NIS)的交互。
2
Introduces how to build a the ECG NetworkInformationSystem in Cardiology Dept, and describes the database interface and data interactive of the ECG - NIS.