NBD is a protocol for accessing block devices (hard disks and
disk-like things) over the network.
nbdkit is a toolkit for creating NBD servers.
The key features are:
* Multithreaded NBD server written in C with good performance.
* Minimal dependencies for the basic server.
* Liberal license (BSD) allows nbdkit to be linked to proprietary
libraries or included in proprietary code.
* Well-documented, simple plugin API with a stable ABI guarantee.
Lets you to export "unconventional" block devices easily.
* You can write plugins in C or many other languages.
* Filters can be stacked in front of plugins to transform the output.
* Server can run standalone or can be invoked from other programs.
'nbdkit' is a meta-package which pulls in the core server and a
useful subset of plugins and filters with minimal dependencies.
If you want just the server, install 'nbdkit-server'.
To develop plugins, install the 'nbdkit-devel' package and start by
reading the nbdkit(1) and nbdkit-plugin(3) manual pages.
* Wed Jul 09 2025 Richard W.M. Jones <rjones@redhat.com> - 1.44.1-2
- Rebase to nbdkit 1.44.1
resolves: RHEL-78830, RHEL-101180
- Synch the spec file with Fedora Rawhide.
- nbdkit-ondemand-plugin moves into a new subpackage.
- New nbdkit-count-filter & nbdkit-time-limit-filter.
- Remove nbdkit-cacheextents-filter.
- Add extra system call checking and debugging to nbdkit-file-plugin
resolves: RHEL-85515
- Allow nbdkit-file-plugin to zero and trim block devices
resolves: RHEL-89371
- vddk: Pre-cache the extents for readonly connections
resolves: RHEL-94825
- Log filename, offset and count in nbdkit-file-plugin error messages
resolves: RHEL-95364
- vddk: Improve statistics
related: RHEL-94825
- CVE-2025-47711 denial of service attack by client sending maximum size block
status
- CVE-2025-47712 denial of service attack by client sending large unaligned
size block status
resolves: RHEL-95819
- Add support for VDDK 9.0.0.0
resolves: RHEL-99467
- server: Fix .zero fallback path
resolves: RHEL-101636
* Mon Jan 06 2025 Richard W.M. Jones <rjones@redhat.com> - 1.40.4-3
- vddk: Avoid reading partial chunk beyond the end of the disk
resolves: RHEL-71697
* Tue Nov 26 2024 MSVSphere Packaging Team <packager@msvsphere-os.ru> - 1.40.4-2
- Rebuilt for MSVSphere 10
* Tue Oct 29 2024 Troy Dawson <tdawson@redhat.com> - 1.40.4-2
- Bump release for October 2024 mass rebuild:
Resolves: RHEL-64018
* Sat Sep 28 2024 Richard W.M. Jones <rjones@redhat.com> - 1.40.4-1
- Rebase to nbdkit 1.40.4
* Fri Jul 26 2024 Richard W.M. Jones <rjones@redhat.com> - 1.40.0-2
- Rebase to nbdkit 1.40.0
related: RHEL-49594
- Send the last error to the NBD client
resolves: RHEL-50666
* Fri Jul 12 2024 Richard W.M. Jones <rjones@redhat.com> - 1.38.0-6
- Re-add libxcrypt dependency
resolves: RHEL-47272
* Mon Jun 24 2024 Troy Dawson <tdawson@redhat.com> - 1.38.0-5
- Bump release for June 2024 mass rebuild
* Wed Jun 19 2024 Richard W.M. Jones <rjones@redhat.com> - 1.38.0-4
- OCaml 5.2.0 ppc64le fix
* Fri May 31 2024 Richard W.M. Jones <rjones@redhat.com> - 1.38.0-3
- Rebuild for OCaml 5.2
