Chroot jails made simpler

jk_lsh

jk_lsh is the limited shell to run within the chroot. You can implement it by listing jk_lsh as the user's shell in either the system's or the chroot's /etc/passwd file, although using the chroot's copy is more secure.

jk_socketd

Configured in /etc/jailkit/jk_socketd.ini, this daemon lets jailed users log into the main system's syslog. It may not be necessary for many chroot purposes.

jk_chrootlaunch

This utility starts a daemon from the main system within a chroot. It may change the user and group ID before running the daemon in the jail. The daemon does not become accessible from within the chroot. For example:

jk_chrootlaunch -j /chroot -u bb -x 'service apache2 start'

would run Apache for user bb in the jail in the /chroot directory.

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