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iproute2: Fill in the ip-netns.8 manpage

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Document ip netns monitor.

Add a few senteces describing each command.  The manpage was looking
very scrawny.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Eric W. Biederman 2013-01-17 14:47:47 +00:00 committed by Stephen Hemminger
parent 58a3e8270f
commit 1e9014a7a6
1 changed files with 45 additions and 1 deletions
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46
man/man8/ip-netns.8
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@ -1,4 +1,4 @@
.TH IP\-NETNS 8 "20 Dec 2011" "iproute2" "Linux"
.TH IP\-NETNS 8 "16 Jan 2013" "iproute2" "Linux"
.SH NAME
ip-netns \- process network namespace management
.SH SYNOPSIS
@ -23,6 +23,9 @@ ip-netns \- process network namespace management
.BR "ip netns exec "
.I NETNSNAME command ...
.ti -8
.BR "ip netns monitor"
.SH DESCRIPTION
A network namespace is logically another copy of the network stack,
with its own routes, firewall rules, and network devices.
@ -54,11 +57,52 @@ bind mounting all of the per network namespace configure files into
their traditional location in /etc.
.SS ip netns list - show all of the named network namespaces
This command displays all of the network namespaces in /var/run/netns
.SS ip netns add NAME - create a new named network namespace
If NAME is available in /var/run/netns/ this command creates a new
network namespace and assigns NAME.
.SS ip netns delete NAME - delete the name of a network namespace
If NAME is present in /var/run/netns it is umounted and the mount
point is removed. If this is the last user of the network namespace the
network namespace will be freed, otherwise the network namespace
persists until it has no more users. ip netns delete may fail if
the mount point is in use in another mount namespace.
.SS ip netns exec NAME cmd ... - Run cmd in the named network namespace
This command allows applications that are network namespace unaware
to be run in something other than the default network namespace with
all of the configuration for the specified network namespace appearing
in the customary global locations. A network namespace and bind mounts
are used to move files from their network namespace specific location
to their default locations without affecting other processes.
.SS ip netns monitor - Report as network namespace names are added and deleted
This command watches network namespace name addition and deletion events
and prints a line for each event it sees.
.SH EXAMPLES
.PP
ip netns list
.RS
Shows the list of current named network namespaces
.RE
.PP
ip netns add vpn
.RS
Creates a network namespace and names it vpn
.RE
.PP
ip netns exec vpn ip link set lo up
.RS
Bring up the loopback interface in the vpn network namespace.
.RE
.SH SEE ALSO
.br