Chroot jails made simpler
jk_uchroot
jk_uchroot
sets up users of the main system who can use the chroot. The list of users and which chroots they can use is kept in /etc/jailkit/jk_uchroot.ini
. Some sample entries include:
[jwl] allowed_jails = /srv/johnjail, /srv/commonjail skip_injail_passwd_check = 1 [group users] allowed_jails = /srv/commonjail skip_injail_passwd_check = 1
Notice the optional last line in each entry that skips the password check.
jk_user
Use this utility to move an existing user account into a chroot. If the --move
(-m
) option is used, the user's entire home directory is placed in the chroot's directory /home/USER
. The user will no longer have access to the main system.
jk_procmailwrapper
Not all chroots require email. For those that do, jk_procmailwrapper
runs procmail. For users with access to the main system, it provides access to their normal .procmailrc
file. If procmail is installed within the chroot, jailed users can use the .procmailrc
in their home directory in the chroot.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
Fedora Asahi 40 Remix Available for Macs with Apple Silicon
If you've been anticipating KDE's Plasma 6 for your Apple Silicon-powered Mac, then you're in luck.
-
Red Hat Adds New Deployment Option for Enterprise Linux Platforms
Red Hat has re-imagined enterprise Linux for an AI future with Image Mode.
-
OSJH and LPI Release 2024 Open Source Pros Job Survey Results
See what open source professionals look for in a new role.
-
Proton 9.0-1 Released to Improve Gaming with Steam
The latest release of Proton 9 adds several improvements and fixes an issue that has been problematic for Linux users.
-
So Long Neofetch and Thanks for the Info
Today is a day that every Linux user who enjoys bragging about their system(s) will mourn, as Neofetch has come to an end.
-
Ubuntu 24.04 Comes with a “Flaw"
If you're thinking you might want to upgrade from your current Ubuntu release to the latest, there's something you might want to consider before doing so.
-
Canonical Releases Ubuntu 24.04
After a brief pause because of the XZ vulnerability, Ubuntu 24.04 is now available for install.
-
Linux Servers Targeted by Akira Ransomware
A group of bad actors who have already extorted $42 million have their sights set on the Linux platform.
-
TUXEDO Computers Unveils Linux Laptop Featuring AMD Ryzen CPU
This latest release is the first laptop to include the new CPU from Ryzen and Linux preinstalled.
-
XZ Gets the All-Clear
The back door xz vulnerability has been officially reverted for Fedora 40 and versions 38 and 39 were never affected.