Applicative Protocol Multiplexer (e.g. share SSH and HTTPS on the same port)
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Kyanos is a networking analysis tool using eBPF. It can visualize the time packets spend in the kernel, capture requests/responses, makes troubleshooting more efficient.
F-Stack is an user space network development kit with high performance based on DPDK, FreeBSD TCP/IP stack and coroutine API.
The Apache Guacamole proxy daemon (guacd), C API (libguac), and protocol support.
- guacamole
- c
- network-client
- java
WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly.
Packet, where are you? -- eBPF-based Linux kernel networking debugger
WinDivert: Windows Packet Divert
- windivert
- packet-capture
- packet-sniffer
- firewall
ENet reliable UDP networking library
the LIBpcap interface to various kernel packet capture mechanism
- pcap
- pcapng
- packet-capture
- sniffer
High-speed packet processing framework
- pf-ring
- capture-packets
- high-speed
- 100gbit
Linux-CAN / SocketCAN user space applications
Ettercap Project
The future of online communications.
Rapid spam filtering system.
- c
- rspamd
- lua
- spam-filter
A C library for asynchronous DNS requests
- dns
- resolver
- dns-queries
- c
mTCP: A Highly Scalable User-level TCP Stack for Multicore Systems
A network sniffer that logs all DNS server replies for use in a passive DNS setup
Gamestream client for embedded systems
- moonlight
- gamestream
The first open-source DDoS protection system
- dpdk
- ddos
- ddos-mitigation
- ddos-protection
Miniscule cross-platform eventing, networking & crypto for async applications
- miniscule
- cross-platform
- async
- tcp
Edit and replay captured network traffic at arbitrary speeds — a suite of pcap tools for *NIX and Windows.
- tcpreplay
- pcap
- netmap
- c
Process-aware, eBPF-based tcpdump
- ebpf
- ebpf-tc
- tcpdump
- tcpdump-like
pmacct is a small set of multi-purpose passive network monitoring tools [NetFlow IPFIX sFlow libpcap BGP BMP RPKI IGP Streaming Telemetry].
- netflow
- ipfix
- sflow
- bgp
Ncurses SIP Messages flow viewer
- sip
- debug
- trace
- flow