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network_namespaces.7: Reorganize text 

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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2017-12-08 10:24:31 +01:00
parent 2685b303e3
commit f051ce24ac
1 changed files with 6 additions and 5 deletions
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11
man7/network_namespaces.7
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@ -37,8 +37,14 @@ IP routing tables, firewalls, the
directory, the
.I /sys/class/net
directory, port numbers (sockets), and so on.
.PP
A physical network device can live in exactly one
network namespace.
When a network namespace is freed
(i.e., when the last process in the namespace terminates),
its physical network devices are moved back to the
initial network namespace (not to the parent of the process).
.PP
A virtual network
.RB ( veth (4))
device pair provides a pipe-like abstraction
@ -46,11 +52,6 @@ that can be used to create tunnels between network namespaces,
and can be used to create a bridge to a physical network device
in another namespace.
.PP
When a network namespace is freed
(i.e., when the last process in the namespace terminates),
its physical network devices are moved back to the
initial network namespace (not to the parent of the process).
.PP
Use of network namespaces requires a kernel that is configured with the
.B CONFIG_NET_NS
option.