File Integrity checker with recovery

Hello friends
I have an CentosOS 5 box running Apache, I want to Install a powerful File Integrity checker with recovery option to maintain any changes may be happened without my hand
Could you help me to recommend such solution
Thanks

Tripwire can monitor your system for changes. However, I don't think that it will automatically recover them, as that's something most administrators don't want to leave to automation. After all, the installation source itself could have been corrupted itself.

Apart from undefined characteristics like "powerful": Samhain can store file contents but file size is limited. BTW, there's a reason people emphasize making (off-site) backups is a Good Thing.

You may do this yourself by maintaining the checksum of all the executables and libraries. You may check them always at boot time by putting a relevant init script and take the status of the system integrity.