1 .\" Copyright (c) 2019 by Michael Kerrisk <mtk.manpages@gmail.com>
3 .\" SPDX-License-Identifier: Linux-man-pages-copyleft
6 .TH uts_namespaces 7 (date) "Linux man-pages (unreleased)"
8 uts_namespaces \- overview of Linux UTS namespaces
10 UTS namespaces provide isolation of two system identifiers:
11 the hostname and the NIS domain name.
12 These identifiers are set using
15 .BR setdomainname (2),
16 and can be retrieved using
20 .BR getdomainname (2).
21 Changes made to these identifiers are visible to all other
22 processes in the same UTS namespace,
23 but are not visible to processes in other UTS namespaces.
25 When a process creates a new UTS namespace using
31 flag, the hostname and domain name of the new UTS namespace are copied
32 from the corresponding values in the caller's UTS namespace.
34 Use of UTS namespaces requires a kernel that is configured with the
41 .BR getdomainname (2),