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 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/.
Copyright © 2010-2019 Platon Technologies, s.r.o.           Home | Man pages | tLDP | Documents | Utilities | About
Design by styleshout