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This tool builds a tamper-evident, append-only log chain using SHA-256 hash chaining. By incorporating the previous entry's hash into the current entry, any modification to an old log entry will invalidate all subsequent hashes, enabling pinpoint tamper detection. It supports various log formats (syslog, JSON, plain text) and is essential for compliance, digital forensics, and verifying log authenticity in security operations.

This guide details the configuration and implementation of mutual TLS (mTLS) authentication between microservices. It utilizes Python's cryptography library for robust certificate generation, validation, and secure service-to-service authentication, essential for adopting zero-trust security models.

A comprehensive guide detailing the implementation of 802.1X port-based Network Access Control (NAC) using RADIUS authentication and platforms like PacketFence. This solution enforces identity-based access, performs endpoint posture assessment, and dynamically assigns VLANs. It is essential for establishing zero-trust networks, meeting stringent compliance standards (PCI-DSS, HIPAA), and automating the onboarding of BYOD devices.

This guide details the deployment of Cisco Identity Services Engine (ISE) for comprehensive Network Access Control (NAC). It utilizes 802.1X authentication, MAC Authentication Bypass (MAB), and posture assessment to enforce security policies. Key features include integrating with Active Directory, assigning dynamic VLANs, and applying TrustSec Security Group Tags (SGTs) for advanced network segmentation in enterprise environments.

A comprehensive guide for deploying and managing network deception systems using industry-leading honeypot platforms like OpenCanary, T-Pot, and Cowrie. This skill helps security professionals detect unauthorized access attempts, trace lateral movement, and gather critical threat intelligence by simulating vulnerable services within a controlled environment. Ideal for enhancing network security architecture and creating early warning indicators for intrusions.

This guide details the implementation of advanced, phishing-resistant, passwordless authentication using Microsoft Entra ID. It covers configuring FIDO2 security keys, Windows Hello for Business, and passkey support via Microsoft Authenticator. Use this skill to eliminate reliance on passwords, mitigate credential stuffing attacks, and satisfy strict regulatory mandates for modern identity access management.

Implement robust, phishing-resistant authentication using FIDO2/WebAuthn standards. This guide covers integrating WebAuthn APIs, configuring FIDO2 servers, managing passkey enrollment, and migrating systems away from traditional passwords. Essential for meeting high-assurance security standards like NIST SP 800-63B AAL3.

Tetragon is a CNCF project that provides advanced, high-performance runtime security observability and enforcement for Kubernetes clusters. By utilizing eBPF, it operates directly at the Linux kernel level to monitor and enforce policies on process execution, file system access, network traffic, and dangerous system calls (syscalls). It offers low-overhead threat detection, making it essential for securing containerized environments against container escapes and unauthorized activity.

A comprehensive guide for implementing SAML 2.0 Single Sign-On (SSO) using Okta as the Identity Provider (IdP). This skill covers end-to-end configuration, including SP-initiated and IdP-initiated flows, secure attribute mapping, advanced certificate management (SHA-256, AES-256), and security hardening practices required for enterprise-grade identity access management (IAM) deployments. Learn to establish robust and compliant authentication architecture.

This guide focuses on developing multi-event correlation rules using Splunk SPL and Sigma format. It teaches how to detect Advanced Persistent Threats (APT) and lateral movement by chaining multiple Windows authentication, process execution, and network connection events across hosts within specified time windows. Use this to surface complex, multi-stage attack sequences that single-event detection rules typically miss.

A comprehensive guide for implementing a highly secure and reliable centralized logging pipeline using rsyslog. This method utilizes TLS encryption via X.509 certificate authentication and GnuTLS stream drivers, ensuring all log data is securely transmitted. The guide covers per-host log segregation, robust log rotation, and disk-assisted queueing for high-availability log infrastructure, making it ideal for compliance and security operations.

This skill provides a comprehensive guide to implementing robust USB device control policies. It restricts unauthorized removable media access to mitigate data exfiltration risks and prevent malware introduction via USB endpoints. Learn how to deploy granular policies using Group Policy Objects (GPO), Microsoft Intune, or advanced Endpoint Detection and Response (EDR) platforms to meet strict compliance standards.