JMC Research - Juan M. Casillas Web Site

Adding users to the Jail

Or how to invoke addjailuser

Published at 26/08/2003 17:10:48
By Juan M. Casillas

addjailuser edit the chrooted /etc/passwd automatically, creates the user directories, addjailuser has been written in perl script. This are the command line arguments:

addjailuser chrootdir userdir usershell username

Argument Description

chrootdir The directory where the chrooted environment will live. It its the home entry in the non-chrooted /etc/passwd file

userdir The directory inside the chrooted enviroment when the user will live, in our example, /home/user3.

usershell The user?s shell full path (e.g. /bin/bash)

username The user?s name. In our example, user3

Invocation example:

addjailuser /var/chroot /home/user3 /bin/bash user3

This will add a user under the directory /var/chroot setups the home directory of the user3 into /home/user3, and selects /bin/bash as default shell for user3. Also edits the chrooted /etc/passwd, /etc/group and /etc/shadow to configure propertly jail.