Re: [CentOS] Giving full administrator privileges through sudo on production systems

On Thu, Aug 29, 2019 at 10:25:50AM -0500, Valeri Galtsev wrote:

root@point:/home/valeri # cd root@point:~ # whoami root root@point:~ # rm -rf / rm: "/" may not be removed

Somebody is really clever in this World ;-) Well, FreeBSD folks made my day (again!). Note, that that I did on my live workstation (yes, I did test it on throw-away system first ;-) - so I can copy and paste what I got to this email.

GNU coreutils also has that feature, you can't run 'rm -rf /' there either, you need to run it with --no-preserve-root. This was added to Coreutils in 2003. Be careful in FreeBSD, if you have POSIXLY_CORRECT defined, it will let you rm -rf /.