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Network Security

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Network security protects the communication channels between systems. This module covers segmentation, firewalls, intrusion detection, VPNs, and monitoring.

Pages in This Module

PageDescription
Network SegmentationDMZ, VLANs, micro-segmentation, Zero Trust, Target 2013 case study
FirewallsPacket filter, stateful, NGFW, WAF, iptables/nftables rules
IDS/IPSSignature vs anomaly, Snort/Suricata rules, false positive management
VPNs & Remote AccessIPsec, WireGuard, OpenVPN, site-to-site vs remote access
Network MonitoringNetFlow, packet capture, Zeek, network baselines
Wireless SecurityWPA3, 802.1X, rogue AP, enterprise wireless hardening
Network LabHands-on: multi-tier network with firewall + IDS
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