通过对Unix主机的安全漏洞分析,提出了加强主机系统的健壮性与网络安全控制相结合的安全管理策略,并叙述了Unix主机的安全设置、日常管理和网络安全控制的方法。 Through the analysis of the security vulnerabilities of the Unix host, this paper proposes a security management strategy that combines the robustness of the host system with the network security control. The security settings, daily management and network security control of the Unix host are also described.