This guide walks you through installing BIND on Linux, configuring forward and reverse DNS, setting ports, logging, access controls, forwarders, zone files, master‑slave replication, AppArmor adjustments, and testing the DNS service with tools like dig, host, and nslookup.
This guide explains how to install BIND, configure forward and reverse DNS zones, set up logging, access control, master‑slave replication, and troubleshoot common issues on Ubuntu and CentOS, including AppArmor adjustments for custom directories.
This article explains how Kubernetes leverages the Linux kernel security mechanisms Seccomp, AppArmor, and SELinux together with Pod Security Standards and the built‑in admission controller to enforce fine‑grained security policies for container workloads in cloud‑native environments.
Kubernetes v1.31 "Elli", released after the project’s ten‑year anniversary, introduces 45 enhancements—including 11 stable, 22 beta and 12 alpha features—spanning AppArmor GA, nftables support, multi‑Service CIDR, a new DRA API, image‑as‑volume, CPUManager improvements, and several deprecations and removals to streamline the platform.
This tutorial walks you through installing BIND on Linux, configuring forward and reverse DNS zones, customizing ports, logging, access control, master‑slave replication, testing with dig/host, and handling AppArmor restrictions, providing complete commands and configuration examples.
This article explains Docker's role in modern development, distinguishes images from containers, and provides concrete security measures—including least‑privilege users, minimal base images, multi‑stage builds, and AppArmor profiles—to harden Docker deployments against attacks.
This article explains why MySQL fails to start on Ubuntu due to AppArmor restrictions and provides two practical solutions: editing the AppArmor profile to grant MySQL directory access or switching AppArmor to complain mode, with full command examples and configuration snippets.
The article explains the Linux Security Module (LSM) framework, detailing its origins, hook‑based architecture, kernel integration points, initialization process, and how it enables flexible, non‑intrusive security enhancements such as SELinux, allowing multiple security modules to coexist within the Linux kernel.
This article explains Docker's built‑in security mechanisms—including Linux kernel capabilities, image signing, AppArmor MAC, Seccomp syscall filtering, user namespaces, SELinux, PID limits and additional kernel hardening tools—provides configuration examples, command‑line demonstrations, and guidance on using them safely.
At DockerCon 2016, Aaron Grattafiori outlined a comprehensive security framework for container‑based microservices, emphasizing user namespaces, custom AppArmor/SELinux policies, sec‑comp whitelists, hardened host OS, limited host access, network security, immutable containers, and secret management to achieve high‑assurance deployments.
