RustNet is a cross-platform network monitoring tool built with Rust.
RustNet provides real-time visibility into network connections with detailed state information, connection lifecycle management, deep packet inspection, and a terminal user interface.
RustNet uses kernel eBPF programs by default on Linux for enhanced performance and lower overhead process identification.
This is free and open source software.
Features include:
- Real-time Network Monitoring: Monitor active TCP, UDP, ICMP, and ARP connections with detailed state information.
- Connection States: Track TCP states (ESTABLISHED, SYN_SENT, TIME_WAIT), QUIC states (QUIC_INITIAL, QUIC_HANDSHAKE, QUIC_CONNECTED), DNS states, SSH states, and activity-based UDP states.
- Deep Packet Inspection (DPI): Detect application protocols including HTTP, HTTPS/TLS with SNI, DNS, SSH with version detection, and QUIC with CONNECTION_CLOSE frame detection
- Smart Connection Lifecycle: Protocol-aware timeouts with visual staleness indicators (white → yellow → red) before cleanup.
- Process Identification: Associate network connections with running processes.
- Service Name Resolution: Identify well-known services using port numbers.
- Cross-platform Support: Works on Linux, macOS, Windows and potentially BSD systems.
- Advanced Filtering: Real-time vim/fzf-style filtering with keyword support (port:, src:, dst:, sni:, process:, state:).
- Terminal User Interface: Beautiful TUI built with ratatui with adjustable column widths.
- Multi-threaded Processing: Concurrent packet processing for high performance.
- Optional Logging: Detailed logging with configurable log levels (disabled by default).
Website: github.com/domcyrus/rustnet
Support:
Developer: Marco Cadetg
License: Apache License 2.0
RustNet is written in Rust. Learn Rust with our recommended free books and free tutorials.
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