Urgent.News

What's breaking now, across thousands of outlets.

Tech

Landlock LSM: Securing sandbox Linux without root rights

Landlock LSM: Anwendungs-Sandboxing direkt im Linux-Kernel ohne Root Stellen Sie sich vor, Sie öffnen eine unbekannte PDF-Datei oder starten ein skriptartiges Tool aus einem verdächtigen Repository. Normalerweise müsste man entweder den gesamten Host infizieren riskieren oder aufwändige Virtualisierung (VMs, LXC) aufsetzen. Was wäre, wenn der Linux-Kernel jede beliebige Anwendung in einen Käfig…

Translated from German Read in German

Landlock, a Linux Security Module (LSM), introduced in kernel 5.13, allows a process to restrict its own access rights to files and network objects without requiring root privileges. This provides a sandboxing solution that can limit the damage caused by running untrusted applications. Landlock uses simple rules and does not require complex policies like SELinux or AppArmor.

A command-line tool, firejail, supports Landlock and can be used to test its functionality. With Landlock, users can run applications in isolation, restricting their access to certain directories and files.

Written by urgent.news from Dev.to's report — not a translation of it. Machine-written — may contain errors; check the original before relying on it.

Read the original at dev.to →

More in Tech

Quarkus + GraalVM Advanced Obfuscation

How to open-source your runtime without open-sourcing your IP I've spent the last 18 months building Backbone , a production platform bootstrap for SaaS startup engineering teams.

  • Backbone platform bootstrap open-sourced for local development
  • GraalVM 25 introduces Advanced Obfuscation (AO) for Quarkus
  • AO turns native compilation into practical distribution boundary

Media Encryption & Port Protection Deep Dive: USB Control, Encryption & Device Authorization

This article is part of my Harmony Endpoint Deep Dives series, originally published on Check Point CheckMates. It is written for a cloud-managed deployment (Infinity Portal / Web Management); where an on-premises Management Server behaves differently, that is called out.

  • ME&PP encrypts data on removable devices and requires authorization for access.
  • USB storage and non-storage devices are distinguished for ME&PP implementation.
  • UUID Site Trust Model determines device access based on matching UUIDs or trusted Sites.

More from Tuesday 22 September →