Linux IDS Patch - Version 0.6.1 - Dec 15, 1999. Lids is an intrusion detection system in the Linux kernel. This patch (Version 0.6.1) is for the Linux kernel 2.2.13. LIDS 0.6 has a brand new design. When LIDS is in effect, no one (including root) can change the protected files or directories and their sub-directories, and the protected append-only files can only be appended. It can also protect the hard disk's MBR, and can also disallow sniffing while the NIC is in promiscuous mode.
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