uts_namespaces(7) - phpMan

UTS_NAMESPACES(7)                   Linux Programmer's Manual                   UTS_NAMESPACES(7)

NAME
       uts_namespaces - overview of Linux UTS namespaces

DESCRIPTION
       UTS  namespaces  provide isolation of two system identifiers: the hostname and the NIS do-
       main name.  These identifiers are set using sethostname(2) and setdomainname(2),  and  can
       be  retrieved using uname(2), gethostname(2), and getdomainname(2).  Changes made to these
       identifiers are visible to all other processes in the same UTS namespace, but are not vis-
       ible to processes in other UTS namespaces.

       When  a  process  creates  a  new  UTS  namespace  using  clone(2)  or unshare(2) with the
       CLONE_NEWUTS flag, the hostname and domain of the new UTS namespace are  copied  from  the
       corresponding values in the caller's UTS namespace.

       Use of UTS namespaces requires a kernel that is configured with the CONFIG_UTS_NS option.

SEE ALSO
       nsenter(1),  unshare(1),  clone(2),  getdomainname(2), gethostname(2), setns(2), uname(2),
       unshare(2), namespaces(7)

COLOPHON
       This page is part of release 5.10 of the Linux man-pages project.  A  description  of  the
       project,  information  about  reporting  bugs, and the latest version of this page, can be
       found at https://www.kernel.org/doc/man-pages/.

Linux                                       2019-11-19                          UTS_NAMESPACES(7)

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