From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Subject: Re: list of all network namespaces
Date: Thu, 17 Sep 2015 11:46:27 +0200
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To: Rick Jones <rick.jones2@hp.com>, Ani Sinha <ani@arista.com>,
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Le 17/09/2015 02:54, Rick Jones a =C3=A9crit :
> 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 t=
o look in
> /var/run/netns .  At least that is what an strace of that command sug=
gests.
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