New Sandboxing Features Come To Systemd
Written by Michael Larabel in systemd on 4 June 2014 at 10:10 AM EDT. 37 Comments
Lennart Poettering has added two new service sandboxing features to systemd.

For improving the security of Linux services, Lennart added ReadOnlySystem and ProtectedHome settings for services. ReadOnlySystem will mount /usr and /boot as read-only for the specific service. The ProtectedHome setting mounts /home and /run/user as read-only or replaces it with an empty, inaccessible directory.

Lennart wrote on Google+, "With these easy options we hence can make sure now that specific services don't get the chance to modify the operating system itself, or to get access to the user's personal data. I have also now enabled this functionality for all of systemd's own long-running services. Of course, ideally we get all of Fedora to enable these settings for all long-running services. This should improve our security quite a bit by default, in particular for network-facing services."

These new service unit security features were commited to systemd Git yesterday and will be part of the systemd 214 release.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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