11-26-2010
Don't log on as root
Because
root is unrestricted, it can be very dangerous if you enter a command on the wrong session. We have a number of us here with full system management role which would normally be assigned to the root user, but we have a tool called
sudo installed. This allows you to create a file of permitted commands for non-root users and there are other tools in the suite that allows you to start a shell if you absolutely have to but then monitors what you do.
Of course it is not foolproof, but someone would have to go out of their way to be malicious in the first place.
It under here
Sudo Main Page
I would suggest a donation because it is free, but very good stuff. I am only a user and not connected to the group who write this. There is also a forum that I am subscribed to for help/support and suggestions.
I hope that this helps
Robin
Liverpool/Blackburn
UK
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LEARN ABOUT OPENDARWIN
chroot
CHROOT(8) BSD System Manager's Manual CHROOT(8)
NAME
chroot -- change root directory
SYNOPSIS
chroot [-u -user] [-g -group] [-G -group,group,...] newroot [command]
DESCRIPTION
The chroot utility changes its current and root directories to the supplied directory newroot and then exec's command, if supplied, or an
interactive copy of the user's login shell.
If the -u, -g or -G options are given, the user, group and group list of the process are set to these values after the chroot has taken
place. See setgid(2), setgroups(2), setuid(2), getgrnam(3) and getpwnam(3).
Note, command or the shell are run as your real-user-id.
ENVIRONMENT
The following environment variable is referenced by :
SHELL If set, the string specified by SHELL is interpreted as the name of the shell to exec. If the variable SHELL is not set, /bin/sh is
used.
SEE ALSO
chdir(2), chroot(2), environ(7), jail(8)
HISTORY
The chroot utility first appeared in 4.4BSD.
SECURITY CONSIDERATIONS
chroot should never be installed setuid root, as it would then be possible to exploit the program to gain root privileges.
BSD
January 24, 2002 BSD