NexusGuard — Automated Packet Inspection & Network Security IDS

Network security demands granular packet inspection to detect malicious payloads, lateral movement, and reconnaissance sweeps before compromise occurs.

NexusGuard captures raw network frames, reconstructs bidirectional TCP streams, and applies signature heuristics to identify threat vectors in real time.

### Technical Highlights - **Deep Packet Inspection (DPI)**: Full protocol decoding across Ethernet, IPv4/IPv6, TCP, UDP, ICMP, DNS, and HTTP headers. - **Port Scan & Flood Heuristics**: Algorithmic detection of SYN scans, NULL scans, and distributed amplification attacks. - **Cryptographic Fingerprinting**: Identifies TLS handshake parameters and cipher suite negotiations to spot suspicious clients. - **Modern Management Interface**: React & Next.js dashboard providing interactive packet visualizer, PCAP downloads, and hex dumps.