In the early days of Linux, there was a tool that saved file info to a floppy. Then you would write protect the floppy and leave it in a drive, and the tool wou

In the early days of Linux, there was a tool that saved file info to a floppy. Then you would write protect the floppy and leave it in a drive, and the tool would periodically compare OS files with that to detect alteration. I can't for the life of me remember the name, though. It was great for hardened systems.