LinuxSecurity.com

If you're managing a Linux environment, on-prem or in the cloud, chances are you've already tangled with questions of network security: firewalls, SSH hardening , package integrity checks '' all the usual suspects. But Virtual Private Networks (VPNs)?

Template email is more than a design tool in the campaign of consistent communication; it also has a hidden danger.

Imagine this scenario: you're managing Linux servers that host critical applications, where uptime is everything and security is non-negotiable. You're diligent about patching, monitoring, and hardening your systems against threats, but a breach occurs anyway. It's not flashy like a ransomware attack , nor is it obvious like failed login attempts''it's hidden in plain sight. Someone found a way to elevate their access quietly, bypassing all the restrictions intended to keep users in their lane. That's privilege escalation''a type of vulnerability that doesn't kick in at step one of an attack but often paves the way for the worst-case scenario.

Docker containers are supposed to provide a safe boundary''a virtual sandbox separating workloads from the host machine. When that boundary gets breached, we're in trouble. That's why the latest Docker Desktop 4.44.3 security update is a critical bug fix for Linux admins and infosec pros managing Docker environments.

Small and medium-sized businesses (SMBs) can't afford to take a hit when it comes to security. And many SMBs rely on Linux to keep their servers and other applications humming.

Let's talk about a threat that's smart, sneaky, and dangerous to your Linux systems: rootkits. If you've ever heard the term tossed around and wondered what a rootkit is and why it's such a headache, you're in the right place. These are not your usual malware nuisances ''they're tools that let attackers dig into a system, stay hidden for the long game, and potentially wreak havoc without leaving many breadcrumbs. For Linux admins and infosec pros, rootkits aren't just pests; they're an adversary that requires awareness, vigilance, and a specific approach to deal with.