Hard disk encryption with DM-Crypt, LUKS, and cryptsetup
SECRET MESSAGES
If you’re serious about keeping secrets, try hard disk encryption with DM-Crypt and LUKS.
File encryption is a popular means for ensuring the security and privacy of file-based data. An intruder who breaks through your firewall won’t be able to read your private files if they are encrypted, right? Actually, selective file encryption provided by utilities such as GnuPG covers some of your tracks, but it may not cover all of them. An intruder can still learn about your system – and maybe even reconstruct some of your file data – by snooping through secret files, temporary files, configuration data, and command histories. The /var/spool/cups directory, for example, could yield a treasure trove of data about files you might have printed in the past, and tools such as the Gnome Thumbnail Factory could be storing an unencrypted thumbnail of your encrypted images.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
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
-
Linux Kernel 6.13 Offers Improvements for AMD/Apple Users
The latest Linux kernel is now available, and it includes plenty of improvements, especially for those who use AMD or Apple-based systems.
-
Gnome 48 Debuts New Audio Player
To date, the audio player found within the Gnome desktop has been meh at best, but with the upcoming release that all changes.
-
Plasma 6.3 Ready for Public Beta Testing
Plasma 6.3 will ship with KDE Gear 24.12.1 and KDE Frameworks 6.10, along with some new and exciting features.
-
Budgie 10.10 Scheduled for Q1 2025 with a Surprising Desktop Update
If Budgie is your desktop environment of choice, 2025 is going to be a great year for you.
-
Firefox 134 Offers Improvements for Linux Version
Fans of Linux and Firefox rejoice, as there's a new version available that includes some handy updates.
-
Serpent OS Arrives with a New Alpha Release
After months of silence, Ikey Doherty has released a new alpha for his Serpent OS.
-
HashiCorp Cofounder Unveils Ghostty, a Linux Terminal App
Ghostty is a new Linux terminal app that's fast, feature-rich, and offers a platform-native GUI while remaining cross-platform.
-
Fedora Asahi Remix 41 Available for Apple Silicon
If you have an Apple Silicon Mac and you're hoping to install Fedora, you're in luck because the latest release supports the M1 and M2 chips.
-
Systemd Fixes Bug While Facing New Challenger in GNU Shepherd
The systemd developers have fixed a really nasty bug amid the release of the new GNU Shepherd init system.
-
AlmaLinux 10.0 Beta Released
The AlmaLinux OS Foundation has announced the availability of AlmaLinux 10.0 Beta ("Purple Lion") for all supported devices with significant changes.