ITNotes - Page 44 of 119 - From Terminal to Cloud

Kubernetes Security Auditing: Hardening Clusters with kube-bench and kube-hunter

May 29, 2026

Is your Kubernetes cluster actually secure? Move beyond default settings by using kube-bench and kube-hunter to audit for CIS compliance and discover active vulnerabilities.

Linux

Modern Linux User Management with systemd-homed: Encryption, Quotas, and Portability

May 29, 2026

Ditch traditional /etc/passwd management for systemd-homed. Learn to configure encrypted, portable user accounts and dynamic disk quotas on modern Linux systems.

Networking

Microsecond Precision with linuxptp: A Guide to PTP/IEEE 1588 on Linux

May 29, 2026

Move beyond NTP. This guide shows you how to implement PTP/IEEE 1588 on Linux using linuxptp to achieve sub-microsecond time synchronization for critical infrastructure.

Networking

Unbound DNS Resolver Setup Guide: Build a Secure Recursive DNS Server with DNSSEC Validation

May 28, 2026

Learn how to install and configure Unbound as a recursive DNS resolver with DNSSEC validation on Linux. This step-by-step guide covers quick setup, split-horizon DNS, rate limiting, and production tips for homelab and small enterprise environments.

Security

Deploying GoPhish for Internal Phishing Simulations: Build a Security Awareness Program That Actually Works

May 28, 2026

Learn how to deploy GoPhish on a Linux VPS to run realistic internal phishing simulations, measure employee click rates, and build a targeted security awareness training program backed by real data.

Networking

Stop Mapping Networks Manually: Use LLDP and CDP on Linux Instead

May 28, 2026

Stop relying on outdated spreadsheets. Learn how to use lldpd on Linux to automatically discover switch ports and build a real-time network map.

Networking

Stop the ‘Sticky Client’ Problem: Configuring 802.11r/k/v in hostapd

May 28, 2026

End the 'sticky client' problem. Configure 802.11r, 802.11k, and 802.11v on hostapd to achieve sub-50ms roaming and seamless Wi-Fi transitions.

Programming

Stop Guessing Edge Cases: Property-Based Testing with Hypothesis

May 28, 2026

Discover how to automate edge-case detection in Python using the Hypothesis library. Learn about strategies, shrinking, and how to integrate property-based testing into your CI/CD workflow.

Linux

Stop Guessing: Automate Linux Performance with Tuned Profiles

May 28, 2026

Stop manual sysctl hacking. This guide shows you how to use Tuned to automate Linux performance for databases, web servers, and virtualization with real-world examples and custom profiles.

Database

Hardening Multi-tenant Apps: Why You Need PostgreSQL Row Level Security

May 28, 2026

Discover how PostgreSQL Row Level Security (RLS) provides a native, foolproof layer of protection for multi-tenant apps. Stop relying on manual filters and secure your data at the source.

Speed Up Python with Numba JIT: Make Heavy Data Processing 100x Faster

CDK for Terraform (CDKTF) with Python: Deploy Cloud Resources Without Writing HCL

Clean Up Your Java Code: A Practical Guide to Vavr

Stop Deploying Broken Docker Images: A Guide to Container Structure Tests

Mastering Golang Memory Profiling: A Practical Guide with pprof

Stop Storing Secrets in Git: A Guide to 1Password Connect on Kubernetes

Building a Network Performance Testbed: High-Speed Testing with TRex on Linux

Stop Writing Boilerplate: A Guide to Python Dataclasses, Attrs, and Pydantic

Build Your Own Private 5G Network: A Hands-On Guide with Open5GS and srsRAN

Mastering Socket.IO in Node.js: Building Secure, Production-Ready Real-Time Apps

Kubernetes Security Auditing: Hardening Clusters with kube-bench and kube-hunter

Modern Linux User Management with systemd-homed: Encryption, Quotas, and Portability

Microsecond Precision with linuxptp: A Guide to PTP/IEEE 1588 on Linux

Unbound DNS Resolver Setup Guide: Build a Secure Recursive DNS Server with DNSSEC Validation

Deploying GoPhish for Internal Phishing Simulations: Build a Security Awareness Program That Actually Works

Stop Mapping Networks Manually: Use LLDP and CDP on Linux Instead

Stop the ‘Sticky Client’ Problem: Configuring 802.11r/k/v in hostapd

Stop Guessing Edge Cases: Property-Based Testing with Hypothesis

Stop Guessing: Automate Linux Performance with Tuned Profiles

Hardening Multi-tenant Apps: Why You Need PostgreSQL Row Level Security