GNU/Linux man pages
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GNU/Linux |
Debian 6.0.8(Squeeze) |
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unshare(1) |
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unshare − run program with some namespaces unshared from parent
unshare [options] program [arguments]
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.
−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.
unshare(2), clone(2)
None known so far.
Mikhail Gusarov <dottedmag@dottedmag.net>
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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unshare(1) | |