摘要
Linux作为自由软件,提供了更多的灵活性和开放性。利用这一优点,我们可以增强Linux系统的安全性。本文首先介绍了 LKM (Loadable Kernel Modules,可加载内核模块)的概念及其原理,然后详细阐述了 Linux下键盘驱动程序的工作原理,最后实现了LKM,来记录本地用户和远程登录到本系统的用户敲击键盘行为,为系统安全提供了一项重要的日志来源。
As a free software , Linux is more flexible and open . Ifwe take full advantage of that ,we will make Linux more secure . This paperintroduces the conception andtheory ofLKM (Loadable KernelModules) ,then describes the working principle of the Linux' Keyboard driver programs in detail and finally realizes a LKM , which intercepts keystrokes of the local users and remote users of Linux system . The behaviors of the LKM provides an important log sources for system security.
出处
《网络安全技术与应用》
2005年第3期24-26,共3页
Network Security Technology & Application
