Security Archives - Page 2 of 15

Network Security Analysis with Wireshark: Packet Filtering, Port Scan Detection, and Traffic Forensics

October 9, 2026

Learn how to use Wireshark to investigate security incidents and network anomalies. This guide compares packet analysis approaches, highlights essential display filters, and walks through detecting stealth port scans and data exfiltration.

Security

Kubernetes Network Policies with Cilium: eBPF Microsegmentation Guide

October 9, 2026

Secure your Kubernetes clusters with Cilium Network Policies powered by eBPF. Learn how to set up zero-trust default-deny rules, L7 HTTP filtering, and live Hubble drop tracing.

Security

Deploy Authentik on Docker: Self-Hosted Identity Provider with SSO, MFA, and User Provisioning

October 9, 2026

Learn how to deploy Authentik on Docker Compose to build a robust, self-hosted Identity Provider. This guide covers step-by-step setup, OIDC and SAML app integration, dynamic MFA policies, and LDAP outpost configuration.

Security

PostgreSQL Database Security in Production: SSL Encryption, pg_hba.conf, and pgAudit

October 7, 2026

Learn how to secure a production PostgreSQL database from the ground up. This guide covers enforcing TLS 1.3 encryption, locking down client authentication with pg_hba.conf, and auditing critical queries with pgAudit.

Security

Kubernetes Security Policies with Kyverno: Enforcing Admission Control in Production

October 6, 2026

Learn how to enforce Kubernetes admission control policies using Kyverno. This production guide covers blocking privileged containers, mutating specs, and auditing workloads with native YAML.

Security

Mastering nftables on Linux: Building a Modern Stateful Firewall to Replace iptables

October 6, 2026

A production-tested guide to replacing iptables with nftables on Linux. Learn how to configure unified IPv4/IPv6 filtering, rate limiting, and atomic zero-downtime rule updates.

Security

Deploying Wazuh SIEM and XDR on Linux: Centralized Security and Active Response

October 5, 2026

Learn how to deploy a centralized Wazuh SIEM and XDR platform on Linux. Follow this practical guide to install the central manager, enroll agents, configure File Integrity Monitoring, and automate threat mitigation with Active Response.

Security

MongoDB Production Security: Hardening Clusters with SCRAM, RBAC, and TLS Encryption

October 4, 2026

Default MongoDB setups leave your data exposed. This guide shows you how to lock down production clusters using SCRAM-SHA-256, strict RBAC roles, and TLS encryption.

Security

Hardening MySQL and MariaDB for Production: TLS, Auditing, and Access Control

October 3, 2026

Default MySQL and MariaDB installations expose production systems to unencrypted traffic and overly permissive user access. This guide walks through configuring TLS 1.3 encryption, enforcing least privilege, and enabling server audit logging.

Security

Deploy HashiCorp Vault on Linux: Centralized Secrets and Automated Credential Rotation

October 3, 2026

Deploy HashiCorp Vault on Linux to eliminate secret sprawl. Learn how to install Vault, store encrypted secrets, and automate dynamic database credential rotation with short-lived leases.