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uts_namespaces
Section: Environments, Tables, and Troff Macros (7) Updated: 202-0-08 Index
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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
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 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 name 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)
Index
- NAME
-
- DESCRIPTION
-
- SEE ALSO
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