Lennart Poettering writes:
On Fedora, we currently have a "nobody" user that is
defined to UID
99. It's defined unconditionally like this. To my knowledge there's no
actual use of this user at all in Fedora however.
I see distccd running as the nobody user.
I also see dnsmasq running as the nobody user.
It is a very popular pastime to take a listening daemon and chroot-jail it
as the nobody user. I'm sure there's a bunch of other stuff in Fedora that
does this. These are just the ones running on my box.
It's unlikely that changing the nobody uid and gid will have any
regressions. However, it's not true that nothing uses nobody. nobody is
quite popular.