linux-security
AI Agents for Ubuntu 24.04 Server Security Auditing: A Practical Guide
AI agents can help audit Ubuntu 24.04 servers for security issues — file permissions, SSH configuration, exposed services, outdated packages, and suspicious…
systemd Service Hardening: A Directive Reference
A systemd service unit can confine itself in ways a container cannot: it can make parts of the filesystem read-only, hide /home…
Linux File Permissions Reference: Modes, umask, and ACLs
Almost every Linux permissions problem reduces to two misunderstandings. The first is that a permission bit on a directory means something different…
What Happens When an AI Agent Gets Root Access?
Root turns a mistaken tool call into full host compromise: keys, firewall, logs, and persistence. Why it happens and how to remove…
How to Secure AI Agents Running on Linux
Run AI agents as dedicated non-root users, contain them with Docker, strip secrets, and log every tool call. Practical Linux controls with…
Build an AI-Powered Linux Security Monitor
Collect Linux auditd and journald events, filter them with deterministic Falco-style rules, then use a local LLM for plain-English triage. No telemetry…