Thoughts on IT security, DevSecOps, and Linux systems.
Traditional VPN configurations leave enterprises exposed through split-tunneling gaps, outdated cipher suites, and flat network access. This guide walks through hardening IPsec and WireGuard deployments with practical configurations that enforce least-privilege remote access at scale.
Misconfigured firewalls remain one of the top causes of enterprise breaches—not because the technology fails, but because rule management becomes an unaudited mess over time. This guide walks through practical strategies, real configurations, and operational discipline for firewall rule management that scales.
NAC implementation fails most often not from bad technology choices, but from poor network segmentation planning and incomplete device profiling. This guide walks through a production-ready NAC deployment using 802.1X, dynamic VLAN assignment, and posture assessment to turn your network from an open hallway into a series of locked doors.
Traditional flat networks hand attackers lateral movement on a silver platter. This post walks through practical network segmentation strategies paired with Zero Trust principles—complete with firewall rules, VLAN configurations, and policy examples you can adapt for enterprise environments today.
Misconfigured VPNs and flat networks remain the top enablers of lateral movement in enterprise breaches. This guide walks through practical VPN hardening and network segmentation strategies—with real configurations—that stop attackers from turning a single foothold into full domain compromise.