netdev - Re: list of all network namespaces

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Message-ID: <55FA8BF3.2090405@6wind.com>
Date:	Thu, 17 Sep 2015 11:46:27 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	Rick Jones <rick.jones2@...com>, Ani Sinha <ani@...sta.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: list of all network namespaces

Le 17/09/2015 02:54, Rick Jones a écrit :
> On 09/16/2015 05:46 PM, Ani Sinha wrote:
>> Hi guys
>>
>> just a stupid question. Is it possible to get a list of all active
>> network namespaces in the kernel through /proc or some other
>> interface?
>
> Presumably you could copy what "ip netns" does, which appears to be to look in
> /var/run/netns .  At least that is what an strace of that command suggests.
This will only list netns referenced in '/var/run/netns', which is not 'all'
existing netns (most probably only netns created by iproute2).

Regards,
Nicolas
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