In computer security, the Linux Intrusion Detection System (LIDS) is a patch to the Linux kernel and associated administrative tools that enhances the kernel's security by implementing mandatory access control (MAC). When LIDS is in effect, chosen file access, all system network administration operations, any capability use, raw device, memory, and I/O access can be made impossible, even for root. One can define which programs can access specific files. It uses and extends the system capabilities bounding set to control the whole system and adds some network and filesystem security features to the kernel to enhance the security. One can finely tune the security protections online, hide sensitive processes, receive security alerts through the network, and more. LIDS currently supports Linux kernel 2.6, 2.4. LIDS is released under the terms of the GNU General Public License (GPL).
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Current Status
As of 2013, the Project appears to be dead. The last updates on the homepage and in the associated forum are from 2010.