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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 host-
       name and the NIS domain name.  These identifiers are set using sethost-
       name(2)  and  setdomainname(2),  and  can  be retrieved using uname(2),
       gethostname(2), and getdomainname(2).  Changes made  to  these  identi-
       fiers are visible to all other processes in the same UTS namespace, but
       are not visible 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 5.05 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)
NAME | DESCRIPTION | SEE ALSO | COLOPHON