I have installed PFSense 2.0.3 and it works wonders my query is regarding a request for an audit which asks us to check the integrity of the operating system. I have understood that PFSense does not provide any specific tool for this, Is there another a workaround?
Sorry for my english I am not native speaker.
We don't have any automated way to do it, but you could check the sha256 of the ISO you used to install from, or the last firmware upgrade file, and then you could take the files from there and compare them against the ones on the installed filesystem to see if they match.
/etc/pfSense_md5.txt can also help but you'd need to get a copy from the verified installation source and not the one on the live HDD.