UNSHARE
Section: User Manuals (1)
Updated: OCTOBER 2008
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NAME
unshare - run program with some namespaces unshared from parent
SYNOPSIS
unshare
[options]
program
[arguments]
DESCRIPTION
Unshares specified namespaces from parent process and then executes specified
program. Unshareable namespaces are:
- mount namespace
-
mounting and unmounting filesystems will not affect rest of the system
(CLONE_NEWNS flag),
- UTS namespace
-
setting hostname, domainname will not affect rest of the system
(CLONE_NEWUTS flag),
- IPC namespace
-
process will have indpendent namespace for System V message queues, semaphore
sets and shared memory segments (CLONE_NEWIPC flag),
- network namespace
-
process will have independent IPv4 and IPv6 stacks, IP routing tables, firewall
rules, the /proc/net and /sys/class/net directory trees, sockets
etc. (CLONE_NEWNET flag).
- See the clone(2) for exact semantics of the flags.
-
OPTIONS
- -h, --help
-
Print a help message,
- -m, --mount
-
Unshare the mount namespace,
- -u, --uts
-
Unshare the UTC namespace,
- -i, --ipc
-
Unshare the IPC namespace,
- -n, --net
-
Unshare the network namespace.
SEE ALSO
unshare(2), clone(2)
BUGS
None known so far.
AUTHOR
Mikhail Gusarov <dottedmag@dottedmag.net>
AVAILABILITY
The unshare command is part of the util-linux-ng package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- SEE ALSO
-
- BUGS
-
- AUTHOR
-
- AVAILABILITY
-
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