这是indexloc提供的服务，不要输入任何密码

Thank you!

This open source software has been incorporating various contributions from many people since its first public release in 1991 (see the release history page). An unavoidably inaccurate (which hopefully can be forgiven) record of the source code contributors can be found in the CREDITS file in each git repository. Also some organizations have donated various resources and services to help the project maintainers and contributors do their work and deliver the results to the users.

Current Specific Donors

  • CFarm provides the project maintainers with access to some of the less common Unix-like operating systems and architectures.
  • runs the Open Source Credits program for open source software projects and grants credits to this project. This project uses the credits to do continuous integration on FreeBSD/AMD64, Linux/AMD64, NetBSD/AMD64 and OpenBSD/AMD64, as well as to run other elements of the infrastructure.
  • OmniOS Community Edition Association maintains a managed OmniOS zone for continuous integration on illumos/AMD64.
  • OpenCSW maintains an independent continuous integration setup on Solaris 10 and a number of architectures, as well as provides access to a variety of Solaris versions and architectures for manual testing.
  • provides virtual resources for Power ISA and IBM z/Architecture continuous integration, as well as a dedicated AMD64 server for other testing. In the past OSU OSL also provided virtual machines for CI on FreeBSD/AArch64, Linux/AArch64, NetBSD/AMD64 and OpenBSD/AMD64.
  • Sovereign Tech Agency through their Fellowship program sustains some individual open source software maintainers. In 2025 the program includes one of the members of The Tcpdump Group as a part-time fellow, which ensures a certain amount of maintenance and development work done on libpcap, tcpdump and the associated infrastructure.
  • provides data centre colocation for the hardware that runs continuous integration on FreeBSD/AArch64, Linux/AArch64, Linux/ARMv7l, Linux/MIPS, Linux/RISC-V, NetBSD/AArch64, NetBSD/MIPS, NetBSD/MIPS64, OpenBSD/AArch64 and OpenBSD/MIPS64.

Current Generic Donors

  • Appveyor provides a free continuous integration service to open source software projects. This project uses it for CI on Windows/AArch64 and Windows/AMD64 CI.
  • Cirrus CI provides a limited free continuous integration service to open source software projects. This project uses it for CI on FreeBSD/AMD64 and macOS/AArch64.
  • GitHub provides a free git hosting plan. This project uses it for git repository hosting and bug tracking.
  • Oracle provides a limited free hosting service. This project uses it to run various elements of the infrastructure.
  • Black Duck (previously Synopsys) provides a free static code analysis service to open source software projects. This project uses it to detect bugs.

Past Donors

  • CREDIL for several years provided a virtual machine to host the project server when everything fitted on a single server.
  • Mozilla Foundation through their Secure Open Source program contracted Include Security to perform a one-off audit of tcpdump & libpcap source code.
  • RISC-V International donated a development board for Linux/RISC-V continuous integration.
  • sysmocom for two years provided its own AArch64 hardware and colocation. This project used it for continuous integration on FreeBSD/AArch64, Linux/AArch64, NetBSD/AArch64 and OpenBSD/AArch64.
  • Travis CI in the past provided a free continuous integration service to open source software projects. This project used it for eight years for CI on Linux/AArch64, Linux/AMD64, Linux/PowerPC, Linux/s390x and macOS/AMD64.
  • Wireshark project served tcpdump & libpcap downloads from their infrastructure for several years.

Special Thanks

  • Van Jacobson, Sally Floyd, Vern Paxson and Steve McCanne created tcpdump in 1988 and published it in 1991.
  • Michael Richardson and Bill Fenner established The Tcpdump Group in 1999.

Thanks to all!