Chroot
<operating system> The
UNIX command to make the
root directory (/) become something other than its default for the lifetime of the current process.
It can only be run by privileged users and is used to give a process (commonly a network server such as
FTP or
HTTP) access to a restricted portion of the
file system.
The new root contains copies of all the essential files and directories, e.g. /lib, /dev/tty, /tmp.
