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+.\" Copyright (c) 2019 by Michael Kerrisk <mtk.manpages@gmail.com>
+.\"
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+.\"
+.\" Since the Linux kernel and libraries are constantly changing, this
+.\" manual page may be incorrect or out-of-date.  The author(s) assume no
+.\" responsibility for errors or omissions, or for damages resulting from
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+.\" professionally.
+.\"
+.\" Formatted or processed versions of this manual, if unaccompanied by
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+.\" %%%LICENSE_END
+.\"
+.\"
+.TH UTS_NAMESPACES 7 2019-08-02 "Linux" "Linux Programmer's Manual"
+.SH NAME
+namespaces \- overview of Linux UTS namespaces
+.SH DESCRIPTION
+UTS namespaces provide isolation of two system identifiers:
+the hostname and the NIS domain name.
+These identifiers are set using
+.BR sethostname (2)
+and
+.BR setdomainname (2),
+and can be retrieved using
+.BR uname (2),
+.BR gethostname (2),
+and
+.BR getdomainname (2).
+.PP
+.PP
+When a process creates a new UTS namespace using
+.BR clone (2)
+or
+.BR unshare (2)
+with the
+.BR CLONE_NEWUTS
+flag, the hostname and domain of the new UTS namespace are copied
+from the corresponding values in the caller's UTS namespace.
+.PP
+Use of UTS namespaces requires a kernel that is configured with the
+.B CONFIG_UTS_NS
+option.
+.SH SEE ALSO
+.BR nsenter (1),
+.BR unshare (1),
+.BR clone (2),
+.BR setns (2),
+.BR unshare (2),
+.BR namespaces (7)