https://www.pistack.xyz/tags/fingerbank/ Recent content in Fingerbank on Pi Stack Hugo en-us Sun, 14 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-14-self-hosted-dhcp-fingerprinting-device-profiling/ Sun, 14 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-14-self-hosted-dhcp-fingerprinting-device-profiling/ <h2 id="introduction">Introduction</h2> <p>Every device that connects to a network reveals its identity through subtle clues in DHCP requests, HTTP User-Agent headers, MAC address OUI prefixes, and mDNS broadcasts. DHCP fingerprinting captures these signatures to identify device types — distinguishing an iPhone from an Android, a printer from a VoIP phone, or an IoT sensor from a rogue laptop. This intelligence powers network access control (NAC), asset inventory, and security incident response.</p>