linux-kernel - Re: CLONE_NEWUTS documentation

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Message-ID: <m1abt6kvym.fsf@ebiederm.dsl.xmission.com>
Date:	Sun, 05 Aug 2007 06:27:29 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Michael Kerrisk <mtk-manpages@....net>
Cc:	"Serge E. Hallyn" <serue@...ibm.com>,
	Kirill Korotaev <dev@...nvz.org>,
	Herbert Poetzl <herbert@...hfloor.at>,
	Andrey Savochkin <saw@...ru>, Adrian Bunk <bunk@...sta.de>,
	Cedric Le Goater <clg@...ibm.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: CLONE_NEWUTS documentation

Michael Kerrisk <mtk-manpages@....net> writes:

> Hello Serge,
>
> In 2.6.19, your patch to add support for CLONE_NEWUTS was included.  Is
> there there some for-userland-programmers documentation of this flag
> somewhere?  Would you be able to send some documentation to me (ideally as
> a patch to the clone.2 man page, but otherwise some plain text will do).
>
> If this flag is also supported for unshare(), then could you please send me
> a patch/text for that too?

Again a short summary

The utsname namespace encapsulates the global kernel identification stored
in struct utsname returned from uname(2).

It is a very trivial namespace but it allows you to set multiple hostnames
and nis domainnames on the same machine.

Eric
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