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#"Linux Security"

All articles tagged with "Linux Security"

#"Linux Security"

The Death of the Perimeter: Architecting Zero-Trust Infrastructure in 2025

Perimeter security is a failed concept. In this guide, we dismantle the 'castle-and-moat' fallacy and deploy a rigorous Zero-Trust architecture using mTLS, WireGuard, and strict identity enforcement on bare-metal KVM. Learn why low-latency hardware is the hidden requirement for encrypted meshes.

Zero-Trust Architecture on Linux: Beyond the Firewall in 2025

Perimeter security is dead. Learn how to implement a true Zero-Trust model on Norwegian VPS infrastructure using WireGuard, nftables, and mTLS to satisfy Datatilsynet and defeat lateral movement.

Zero-Trust Infrastructure: Why Your VPN Concentrator is a Single Point of Failure

Perimeter security is dead. Learn how to architect a true Zero-Trust environment using WireGuard mesh networking, mTLS, and SSH Certificate Authorities on Norwegian infrastructure to satisfy Datatilsynet without sacrificing latency.

Container Security is a Lie: Hardening Kubernetes in a Hostile Environment

Default container configurations are a security disaster waiting to happen. We dismantle the myth of isolation, covering immutable infrastructure, eBPF runtime filtering, and why your host kernel choice determines your survival under GDPR pressure.

Zero-Trust Architecture on Bare Metal: Hardening Linux Infrastructure in Post-GDPR Norway

Perimeter security is dead. A battle-hardened guide to implementing mTLS, WireGuard meshes, and SSH Certificate Authorities on Linux servers. Learn why sovereignty matters as much as encryption.

Kill the Perimeter: A Practical Zero-Trust Implementation Guide for Linux Infrastructure

The old 'castle-and-moat' security model is dead. Learn how to implement true Zero-Trust architecture on Linux using WireGuard, nftables, and mTLS to satisfy strict Norwegian compliance standards.

Kill the VPN: Implementing True Zero-Trust Architecture on Linux Infrastructure

The perimeter is dead. Learn how to implement mTLS, WireGuard mesh networking, and strict nftables segmentation to satisfy Datatilsynet and secure your Nordic infrastructure.

Zero-Trust Architecture: Why "Firewall & Forget" is Suicide in 2024

The 'Castle and Moat' security model is dead. Learn how to implement mTLS, WireGuard micro-segmentation, and SSH CAs to build a true Zero-Trust environment on your Norwegian VPS.

Zero-Trust Implementation Guide: Hardening Linux Infrastructure in Post-Perimeter 2024

The perimeter is dead. Learn how to implement a true Zero-Trust model using mTLS, WireGuard, and strict KVM isolation on Norwegian soil. No buzzwords, just config.

Automating GDPR Compliance on Linux: A CTO’s Guide to Infrastructure Security in 2018

It is August 2018. The GDPR grace period is over. Learn how to use Ansible and OpenSCAP to automate compliance on Norwegian VPS infrastructure without breaking the bank.

Kill the VPN: Implementing Zero Trust Architecture on Linux in 2018

The 'Castle and Moat' security model is dead. Learn how to implement Zero Trust principles using Nginx mTLS, IPTables, and KVM isolation to satisfy GDPR and secure your Norwegian infrastructure.

Docker in Production: Taming the Security Beast Before It Bites

Containerization is revolutionizing deployment, but the security model in 2014 is still the Wild West. From Shellshock mitigation to kernel namespaces, here is how to run Docker securely on Norwegian infrastructure without exposing root.

The Perimeter is Dead: Implementing Zero Trust Architecture on Linux Systems

In the wake of Heartbleed and Shellshock, the old firewall-castle model is obsolete. Learn how to lock down your infrastructure using 'Zero Trust' principles on Linux, specifically tailored for Norwegian data sovereignty.

Container Security in 2014: Stop Handing Root Access to Your Host

Docker is exploding in popularity across Norway's dev teams, but default configurations are a security nightmare. We dissect kernel namespaces, capability dropping, and why true hardware virtualization (KVM) remains the only safe harbor for production data.

Container Security in 2014: Why Your Docker Strategy is a Ticking Time Bomb

It is late 2014 and Docker is eating the world. But running containers in production without hardening is negligence. We dissect LXC isolation, kernel exploits, and why KVM is your safety net.

Container Security in 2014: Hardening Docker on Linux VPS

Docker is changing deployment, but shared kernels pose risks. Learn how to lock down containers using Cgroups, Capabilities, and KVM isolation on trusted Norwegian infrastructure.

The Perimeter is Dead: Implementing "Zero Trust" Architecture on Linux Systems (Post-Shellshock Edition)

Following the Heartbleed and Shellshock disasters of 2014, the traditional 'castle and moat' security model is obsolete. Learn how to implement a verify-every-packet strategy using iptables, SELinux, and Two-Factor SSH on high-performance Norwegian infrastructure.

Docker in Production: Stop Treating Containers Like Lightweight VMs

With the Shellshock vulnerability still echoing through data centers, it is time to get serious about container isolation. We explore kernel namespaces, capability dropping, and why a KVM-backed VPS is still your best defense line.

The Perimeter is Dead: Implementing "Trust No One" Security on Linux in the Wake of Shellshock

The old model of 'trusted LAN, untrusted WAN' is obsolete. Following the chaos of Heartbleed and Shellshock, we explore how to build a manual Zero-Trust architecture using iptables, strict SSH tunneling, and KVM isolation on Norwegian infrastructure.

Disaster Recovery in 2014: Why Your "Backup Strategy" Is Likely a Ticking Time Bomb

Hardware fails. Humans make mistakes. If your disaster recovery plan relies on a single RAID array or a manual FTP transfer, you are already down. Here is the battle-tested blueprint for automated redundancy in Norway's hosting landscape.

Hope Is Not A Strategy: Architecting Failover for Norwegian Infrastructure

Hardware fails. Networks congest. In a post-Snowden world, relying on a single US-based cloud is professional negligence. We detail a battle-tested disaster recovery setup using KVM, MySQL Replication, and Oslo-based redundancy.

Container Security in 2014: Why Shared Kernels Keep Me Up at Night (And How to Fix It)

With the release of Docker 1.0, everyone wants to containerize. But as a sysadmin managing Norwegian infrastructure, I see gaping security holes. Here is how to lock down LXC and Docker using AppArmor, capabilities, and the right virtualization layer.

Zero Trust Architecture: Securing Linux Servers in a Post-Snowden Era

The traditional network perimeter is dead. Discover how to implement a 'Never Trust, Always Verify' security model on Linux using KVM isolation, granular iptables, and strict access controls suitable for 2014's threat landscape.

Container Security in 2014: Locking Down LXC and Docker After the Heartbleed Wake-Up Call

With the recent Heartbleed vulnerability shaking the internet, and Docker gaining traction in version 0.10, isolation is the priority. Here is how to secure your Linux Containers (LXC) effectively while maintaining performance.

Containers Don't Contain: Hardening LXC and Docker 0.8 for Production

It is 2014, and the container revolution is here. But before you deploy Docker to production, you need to understand the security risks of shared kernels. Here is a battle-hardened guide to locking down LXC and why KVM is mandatory for true isolation.

Container Security in 2014: Why Shared Kernels Keep Me Awake at Night (And How to Fix It)

Docker is the new hotness, but running LXC in production requires serious hardening. We dissect cgroups, capabilities, and why KVM is still the safest boundary for Norwegian data.

Trust No One: Architecting 'Zero Trust' Infrastructure Post-PRISM

The perimeter is dead. Following the recent Snowden leaks, relying on firewalls alone is negligence. Learn how to implement a Zero-Trust model using KVM, OpenVPN, and aggressive iptables rules to secure your Norwegian VPS.

Securing Linux Containers: Hardening LXC and OpenVZ in Production Environments

Container virtualization offers incredible density, but the shared kernel model exposes risks. From cgroups resource limiting to dropping capabilities, here is how we lock down instances at CoolVDS.

Securing the Cage: Hardening LXC and OpenVZ for High-Performance Hosting

Container virtualization offers raw speed, but shared kernels pose significant security risks. Learn how to lock down LXC and OpenVZ environments using cgroups, capabilities, and network isolation.

LXC & OpenVZ Security: Locking Down The Shared Kernel Nightmare

It is 2013, and everyone wants lightweight virtualization. But running root inside a container often means root on the host. Here is how to secure LXC against kernel exploits and noisy neighbors before you deploy to production.