Writeups, tutorials, CTF solutions, and security research.
Security
Continuous Control Validation for a Global VPN Fleet — Every server, every night: connect, verify no leak, measure performance, probe seven streaming platforms, grade the node, and email a colour-coded…
Security
Acceptable-Use Enforcement at the Tunnel Layer — Real-time P2P detection on a multi-tenant ocserv fleet, with progressive enforcement: immediate egress block, then session termination on a three-strike threshold. Project Overview…
Security
GRE Tunneling for Multi-Branch WAN Connectivity Project Overview Client RMG Company (Confidential) Location Gazipur, Bangladesh Date July 2023 Role Project Network Engineer Employer Aamra Networks Limited Core Device (HQ) Sophos…
