Jomon is a network forensics and passive sniffer tool. It monitors all incoming/outgoing network traffic, without the use of libpcap, and the processes that are generating this traffic.
It supports packet filtering by writing BPF assembly directly or writing in a higher level tcpdump syntax (tcpdump syntax has very limited support for now).
It uses a minimal set of libraries, libncurses for the UI and libGeoIP for geolocation (optional). The BPF scanner/lexical analyzer is made with the help of re2c.
Website: github.com/jo-lund/jomon
Support:
Developer: John Olav Lund
License: MIT License

jomon is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Network Analyzers | |
|---|---|
| Wireshark | Network protocol analyzer with a rich and powerful feature set |
| Sniffnet | Visualise live network traffic with a friendly interface |
| Kismet | Wireless network and device detector, sniffer, wardriving tool |
| Ettercap | Comprehensive suite for man in the middle attacks |
| IPTraf-ng | Feature-laden network statistic monitoring tool |
| Zeek | Network security monitoring with deep traffic insight |
| netsniff-ng | Swiss army knife for daily Linux network plumbing |
| Kyanos | Networking analysis tool using eBPF |
| Arkime | Indexes full packet captures for rapid, large-scale traffic investigation |
| EtherApe | Graphical network monitor |
| darkstat | Captures network traffic, calculates usage statistics, and serves reports |
| justniffer | Network TCP packet sniffer with reliable TCP flow rebuilding |
| tcpflow | TCP/IP packet demultiplexer |
| tcpdump | Powerful and hugely respected command-line packet analyzer |
| sniffglue | Packet sniffer written in Rust |
| sniffer | Alternative network traffic sniffer |
| RustNet | Terminal monitor for connections and bandwidth |
| Malcolm | Traffic analysis suite for capture, hunting and forensics |
| dsniff | Collection of tools for network auditing and penetration testing |
| ngrep | grep applied to the network layer |
| Network Monitor | Rreal-time network connection monitoring tool |
| sniffit | CORBA based sniffer system with ncurses interactive mode |
| Jomon | Network forensics and sniffer tool |
Read our verdict in the software roundup.
LinuxLinks helps you discover the best free and open source software for Linux. Explore our extensive collection of recommended applications, including alternatives to popular proprietary software.We also publish software reviews, Linux tutorials, hardware reviews, free programming books and articles covering the wider open source community. Browse our Linux resources to discover more. Know a useful free and open source Linux application we haven't covered? Suggest a program for inclusion. Has your software been featured on LinuxLinks? Display one of our Featured on LinuxLinks badges on your website or GitHub README. |


Please read our Comment Policy before commenting.