Skill UI

This comprehensive guide details the architecture and implementation of VLAN-based network segmentation on managed switches. It teaches professionals how to isolate different network zones (e.g., corporate, DMZ, IoT) to enforce strong access controls, reduce the attack surface, and meet compliance standards like PCI-DSS. The workflow includes designing the VLAN plan, configuring trunking, hardening switches against VLAN hopping, and setting up inter-VLAN routing with ACLs.

Provides a comprehensive guide to configuring pfSense firewall rules, NAT policies, and VPN tunnels. It details best practices for enforcing network segmentation (DMZ, LAN, Guest, IOT), controlling traffic flow, and protecting internal network zones in SMB and enterprise environments. Covers VLAN setup, DHCP/DNS management, and granular access control.

This comprehensive guide provides a structured, multi-stage workflow for containing active security breaches. It details both short-term and long-term strategies, including network segmentation, endpoint isolation, credential revocation, and evidence preservation. Use this process during confirmed intrusions, ransomware attacks, or lateral movement events to effectively stop adversary activity and secure critical assets before eradication.

A comprehensive guide for implementing, auditing, and enforcing least-privilege firewall rules within Google Cloud Platform (GCP) VPC networks. This process ensures robust network segmentation, restricts unauthorized ingress and egress traffic, and enables the application of hierarchical firewall policies across an entire organization, significantly bolstering cloud security posture.

This guide provides a comprehensive deep dive into implementing advanced network segmentation and zero-trust security controls within Kubernetes clusters using Calico. It covers standard Kubernetes NetworkPolicy, utilizing Calico's GlobalNetworkPolicy, and defining security Tiers, ensuring fine-grained, least-privilege communication between pods, and establishing robust security architectures for compliance.

This guide details the implementation of microsegmentation using Akamai Guardicore, enabling organizations to map complex application dependencies, visualize east-west traffic flows, and enforce least-privilege network policies. It is crucial for achieving zero-trust compliance by preventing lateral movement across heterogeneous workloads in data centers, cloud environments, and Kubernetes clusters.

This guide details how to use Kubernetes NetworkPolicies to enforce granular, pod-level network segmentation. It covers establishing default deny rules, defining specific ingress and egress rules for services, and implementing zero-trust microsegmentation. Use this skill to build robust security architecture and prevent lateral movement within a container cluster.

A comprehensive guide and tool for implementing secure network segmentation in Operational Technology (OT) environments. It utilizes the Purdue Model and traffic baseline analysis to design secure zones using VLANs, industrial firewalls, and data diodes, ensuring migration from flat networks without operational disruption. Ideal for achieving IEC 62443 compliance and securing IT/OT convergence points.

This skill guides the design and implementation of robust network segmentation using firewall zones, VLANs, ACLs, and microsegmentation. Learn to build secure, isolated zones (like DMZ, PCI CDE, Management) to enforce least-privilege access, restrict lateral movement, and meet stringent compliance requirements (PCI DSS, HIPAA).

This tool implements network segmentation based on the Purdue Enterprise Reference Architecture (PERA). It helps secure Industrial Control Systems (ICS) by mapping assets and data flows to specific Purdue levels (0-5), defining necessary firewall rules, and establishing DMZs. It ensures strict traffic control between IT and OT domains, adhering to standards like IEC 62443 and facilitating secure network retrofitting.

This comprehensive guide details the implementation of Zero Trust Architecture (ZTA) in multi-cloud environments (AWS, Azure, GCP). Following NIST SP 800-207 and BeyondCorp principles, it covers identity-centric access controls, micro-segmentation, continuous verification, and deploying Identity-Aware Proxies (IAP) to eliminate implicit network trust.

A comprehensive guide to implementing Zero Trust Network Access (ZTNA) across major cloud platforms (AWS, Azure, GCP). This skill replaces traditional VPNs with identity-aware proxies, micro-segmentation, and conditional access policies. It ensures secure, context-aware access to cloud workloads, limiting lateral movement and adhering to BeyondCorp architectural principles.