We all should be aware that security is very important for our servers. Having informed about the changes to server file system is always important, as unauthorised access could very well breach security. Here comes our saviour Open Source Tripwire, which is a free security and data integrity tool useful for monitoring and alerting on specific file change(s) on a range of systems.
Open Source Tripwire functions as a host-based intrusion detection system. It detects changes to file system objects and alerts the server administrator.