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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 hostname and the NIS domain name.  These identifiers are set using sethostname(2) and setdomain‐
       name(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 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)

Linux                                                                          2019-11-19                                                              UTS_NAMESPACES(7)