Skill UI

An expert guide for designing, implementing, and optimizing large-scale, secure, and highly available cloud-native infrastructure using Kubernetes. Covers advanced topics including GitOps workflows (ArgoCD/Flux), service mesh architecture (Istio), multi-cluster management, Policy as Code (OPA), and infrastructure automation with Terraform. Ideal for platform engineers building enterprise-grade container orchestration solutions.

This skill provides a comprehensive framework to detect and prevent privilege escalation within Kubernetes pods. It merges preventative measures using admission controllers (like OPA Gatekeeper or Pod Security Admission) to enforce security policies, with runtime monitoring using tools like Falco. It detects dangerous capabilities, unauthorized host access, and suspicious syscall patterns, making it crucial for hardening K8s security posture.

This guide details the exploitation chain for noPac, combining CVE-2021-42278 (sAMAccountName spoofing) and CVE-2021-42287 (KDC PAC confusion). It demonstrates how an attacker can escalate from a standard domain user to Domain Admin by manipulating Active Directory tickets and performing DCSync. Primarily used in authorized red-teaming and penetration testing to validate domain security.

Utilize OPA Gatekeeper as a Kubernetes admission controller to enforce policies written in Rego. This tool validates, mutates, or denies resource requests (like Pods, Deployments) at admission time, ensuring that all workloads comply with defined security and compliance standards. Ideal for environments requiring policy-as-code security controls in Kubernetes clusters.

This guide details implementing Policy-as-Code using Open Policy Agent (OPA) and Gatekeeper. It covers writing complex Rego policies, deploying OPA Gatekeeper as a Kubernetes admission controller, and integrating policy testing into CI/CD pipelines to enforce security standards across clusters. Ideal for DevSecOps practitioners requiring robust governance.

KubeEye is a comprehensive cluster inspection tool designed for Kubernetes environments, particularly within KubeSphere. It systematically detects issues across workloads, nodes, and configurations by integrating multiple policy engines, including OPA/Rego, PromQL, file integrity checks, kernel parameter validation, and systemd health checks. Users can define custom inspection rules (InspectRule), schedule checks (InspectPlan), and retrieve detailed reports (InspectResult) to ensure cluster compliance and stability.

This tool guides authors on structuring manuscripts for IEEE Transactions on Antennas and Propagation (TAP). It emphasizes that the core contribution must be in applied electromagnetics, antenna design, or wave propagation theory, requiring a standard evidence chain: sound theory, full-wave simulation, and measured prototype validation. Use it for venue selection and content re-framing.