Appendix C. Other Useful Linux Security Tools
The following appendix provides links to various Linux security and system administration tools. Some are essential, some are merely interesting, but nearly all are free.
Tool or Resource: Abacus Project
Keywords: Network monitoring
Description: The Abacus Project offers several tools for logging, intrusion detection, and general system management. Of these, the most interesting is
HostSentry. Its author describes it as a host-based login anomaly detection and response tool. Other Abacus Project tools analyze logs and defend against port scan attacks in real-time.
Tool or Resource:
Keywords: Network news access
Notes: Requires Java.