Hello Olivier,
you'll need multiple jails if you want to do this. Modify jk_init.ini
such that you can install your complete jail with a single command, and
than deploy multiple jails with each a single user.
i also tried to do as Antoine intended to. but not with great luck.
could you maybe spare the time to give a full example of a multiple jail
environment.
when i was trying i got the folowing in the log's
AUTH.LOG
May 21 11:39:22 web1 sshd[20964]: Accepted password for connyjailtest
from 81.157.217.150 <http://81.157.217.150> port 58913 ssh2
May 21 11:39:22 web1 sshd[21002]: (pam_unix) session opened for user
connyjailtest by (uid=0)
May 21 11:39:22 web1 jk_chrootsh[21003]: now entering jail /home/kitchen
for user connyjailtest (1008)
May 21 11:39:22 web1 jk_chrootsh[21003]: abort, home directory
/home/connyjailtest differs from jail home directory
/home/connyjailtest/ for user connyjailtest (1008), check /etc/passwd
and /home/kitchen/etc/passwd
May 21 11:39:22 web1 sshd[21002]: (pam_unix) session closed for user
connyjailtest