UNSHARE
Section: User Manuals (1)Updated: OCTOBER 2008
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NAME
unshare - run program with some namespaces unshared from parentSYNOPSIS
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/.
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Time: 05:29:11 GMT, December 24, 2015