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GNU Hurd
Project GNU's replacement for the Unix kernel

The Hurd is the kernel for the GNU system, a replacement and augmentation of standard Unix kernels.

It is a collection of protocols for system interaction (file systems, networks, authentication), and servers implementing them. Subprojects include Mach, the microkernel on which the Hurd is based, which provides a basic inter-process communication mechanism, and MIG, an interface generator for Mach.


User reference manual available in HTML, PostScript, and TexInfo formats from

"IRC irc:// " IRC general channel

Related Projects


LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey8 August 2001

Leaders and contributors

Okuji Yoshinori Contributor
Samuel Thibault Maintainer
Marcus Brinkmann Maintainer
Roland McGrath Maintainer
Jeff Bailey Contributor
Mark Ketteris Contributor
Thomas Schwinge Maintainer

Resources and communication

Audience Resource type URI
Developer Homepage
Support E-mail
Developer E-mail
Developer VCS Repository Webview
Bug reports Mailing List Subscribe
Developer VCS Repository Webview
Bug Tracking E-mail

Software prerequisites

Kind Description
Required to use mig
Required to build glibc
Required to build gcc
Required to use mach

This entry (in part or in whole) was last reviewed on 19 December 2016.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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