02-23-2001
1) Since the 'cd' command is a shell builtin, you would have to write (or modify) your own shell to remove the ability to change directories with this command. An alternative might be to have his login script run a program which calls the chroot() system call. do a 'man chroot' for information.
I suggest finding a local Unix guru to help you.
2) Contact an ISP and pay them to put your DNS info in their servers, or look into using <A HREF="http://soa.granitecanyon.com/">The Public DNS Service</A>.
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LEARN ABOUT DEBIAN
adt-virt-chroot
adt-virt-chroot(1) Linux Programmer's Manual adt-virt-chroot(1)
NAME
adt-virt-chroot - autopkgtest virtualisation server using a chroot
SYNOPSYS
adt-virt-chroot [options] =[chroot-name]
adt-virt-chroot [options] [-rgain-root-cmd] /path/to/chroot
DESCRIPTION
adt-virt-chroot provides an autopkgtest virtualisation server using a chroot install (or similar).
Normally adt-virt-chroot will be invoked by adt-run.
The chroot to use must be specified. If it starts with a = character then it is taken to be a chroot name known to dchroot(8). Otherwise
it must start with a / and will be taken to an absolute path.
OPTIONS
--gain-root|-r gain-root-cmd
Specifies that adt-virt-chroot can become root (on the host) by prefixing its commands with gain-root-cmd. The command may consist
of several words separated by whitespace, in which case words other than the first are supplied as additional arguments to the com-
mand; other shell (or other) metacharacters in gain-root-cmd are not interpreted or modified by adt-virt-chroot. The actual command
to be run as root, and its arguments, are supplied as additional (separate) arguments to gain-root-cmd.
Root privilege is needed, to successfully run chroot(8), if the chroot to use is specified as an absolute path. The default is not
to take any special action when root will be needed, in which case for an absolute path chroot, adt-virt-chroot must be started as
root.
-d | --debug
Enables debugging output. Probably not hugely interesting.
INPUT, OUTPUT AND EXIT STATUS
The behaviour of adt-virt-chroot is as described by the AutomatedTesting virtualisation regime specification.
SEE ALSO
adt-run(1), adt-virt-null(1), adt-virt-xenlvm(1), /usr/share/doc/autopkgtest/.
AUTHORS AND COPYRIGHT
This manpage is part of autopkgtest, a tool for testing Debian binary packages. autopkgtest is Copyright (C) 2006-2007 Canonical Ltd and
others.
See /usr/share/doc/autopkgtest/CREDITS for the list of contributors and full copying conditions.
autopkgtest 2007 adt-virt-chroot(1)