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chroot

Posted on 2002-03-18
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Last Modified: 2013-12-15
Sir
How to change root directory to some other directory.
what is the use of chroot command.
Jagadish
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Question by:SJECCP
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6 Comments
 
LVL 51

Expert Comment

by:ahoffmann
ID: 6879216
Madam,
do mean programatically (compiled program), or from within any shell?
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Expert Comment

by:fremsley
ID: 6880317
The chroot command can be quite useful for securing a
system. Consider you run a public internet server: if you
start that process for example with:

  chroot /everyone_may_see_the_content_of_this_directory server

every access to e.g. /my_very_private_place is blocked by
operating system, even when some bug in the server software
might otherwise be exploited to gain access to it -- it is
simply not visible to the server process

Hope it helps

0
 

Author Comment

by:SJECCP
ID: 6881549
Dear ahoffmann
I want to use it in shell. I heard chroot is used to change root directory to some other directory.For example from harddisk root directory to floppy disk root directory.

Jagadish

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Accepted Solution

by:
ahoffmann earned 50 total points
ID: 6882180
chroot /jail
# or
chroot /jail /path/to/command

keep in mind that /jail must have all the appropriate directories and files for running your command, like:
   /jail/bin/
   /jail/dev/
   /jail/etc/
   /jail/lib/
   etc. etc.
on most systems chroot works as root only
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by:Moondancer
ID: 6915936
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