Purpose of chroot_helper within a chroot jail

[Carl T. <wo...@su...>]

Hi All,

I have noticed that the documentation (the CHROOT file), explicitly states
that you must place a copy of the chroot_helper binary within the jail.

In my testing I have found that things *appear* to work fine without it.
So is the requirement a peculiarity of certain implementations or is there a
security risk created by its absence?

Thanks,

Carl.