Samhain is a tool for monitoring the integrity of files on a single machine as well as on a network. It is easy to configure and maintains a single database (per host) for storing the signatures of files. Samhain is designed to be run as a background process, checking files periodically against the database. Reports can be written to a signed, tamper-resistant log file, and/or sent offsite by e-mail. To monitor several machines and collect data by a central log server, samhain may be used as a client/server application. For the paranoid, a 'stealth' option is available.
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