You have just installed a new Linux file server at your office. This server is going to be used by several individuals in the organization, and unauthorized personnel must not be able to modify any data.

What kind of program can you use to track changes to files on the server?

A.
Network Based IDS (NIDS)

B.
Personal Firewall

C.
System Integrity Verifier (SIV)

D.
Linux IP Chains

Explanation:
System Integrity Verifiers like Tripwire aids system administrators and users in monitoring a designated set of files for any changes. Used with system files on a regular (e.g., daily) basis, Tripwire can notify system administrators of corrupted or tampered files, so damage control measures can be taken in a timely manner.