随着Internet应用的广泛深入,计算机系统的安全问题日益引起人们的高度重视。操作系统是连接计算机硬件与上层软件及用户的桥梁,它的安全性是至关重要的。论文阐述了B2级安全服务器的系统需求,重点对自主访问服务器系统需求和功能描述进行说明,最后还就LINUX系统服务器的安全相关问题进行重点分析,有利于提高LINUX服务器安全性能设计水平。 With the extensive application of Internet, the security of computer system is paid more and more attention by people. Operating system is the bridge between the computer hardware and the upper software and users, its security is crucial. The paper describes the system requirements of B2-level security server, focusing on the description of the system requirements and functional description of autonomous access server. Finally, it also analyzes the security-related issues of LINUX system server, which helps to improve the design level of Linux server security.