unshare(1) [linux man page]
UNSHARE(1) User Manuals UNSHARE(1) 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 independent 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. NOTES
The unshare command drops potential privileges before executing the target program. This allows to setuid unshare. 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 package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. Linux OCTOBER 2008 UNSHARE(1)
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UNSHARE(1) User Commands UNSHARE(1) 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 independent 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 UTS namespace, -i, --ipc Unshare the IPC namespace, -n, --net Unshare the network namespace. NOTES
The unshare command drops potential privileges before executing the target program. This allows to setuid unshare. 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 package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux October 2008 UNSHARE(1)