How to install AIDE on CentOS

Note:

With the default setup, an AIDE check is not run periodically as a cron job. It cannot be guaranteed that the AIDE binaries, config file and database are intact. It is not recommended that you run automated AIDE checks without verifying AIDE yourself frequently. In addition to that, AIDE does not implement any password or encryption protection for its own files.

It is up to you how to put a file integrity checker to good effect and how to set up automated checks if you think it adds a level of safety (e.g. detecting failed/incomplete compromises or unauthorized modification of special files). On a compromised system, the intruder could disable the automated check. Or he could replace the AIDE binary, config file and database easily when they are not located on read-only media.