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Filter container traffic [message #46858]

Tue, 19 June 2012 02:10

cheetah
Messages: 7
Registered: June 2012

Junior Member

Hi Guys,

I just setup my openvz environment. What I need to do now is to write a
firewall to check each flow from container and decide if it is allowed.

I noticed that for each container there is vmnet device. I am wondering can
I use open vswitch with this vmnet device? (It seems not from what is
mentioned here http://wiki.openvz.org/Virtual_network_device). If not, does
that mean I have to use netfilter/contrack/iptables to implement my
firewall? Could you please recommend some tutorials/readings?

Thanks a lot!

Regards,
Peter

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Re: [Devel] Filter container traffic [message #47004 is a reply to message #46858]

Tue, 26 June 2012 19:44

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

On 06/19/2012 06:10 AM, cheetah wrote:
> Hi Guys,
>
>
> I just setup my openvz environment.

Can you please stop cross-posting to two mailing lists? This is kinda
impolite and is counter-productive.

Please stick to users@ list, unless you have a patch or smth.

Thank you.

Kir Kolyshkin

http://static.openvz.org/userbars/openvz-developer.png

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Re: [Devel] Filter container traffic [message #47007 is a reply to message #47004]

Wed, 27 June 2012 03:03

cheetah
Messages: 7
Registered: June 2012

Junior Member

Sorry for my misuse. Will follow the advice next time.

Could you please give some hints on the questions? Thanks.

Peter

On Wed, Jun 27, 2012 at 3:44 AM, Kir Kolyshkin <kir@openvz.org> wrote:

> On 06/19/2012 06:10 AM, cheetah wrote:
>
>> Hi Guys,
>>
>>
>> I just setup my openvz environment.
>>
>
> Can you please stop cross-posting to two mailing lists? This is kinda
> impolite and is counter-productive.
>
> Please stick to users@ list, unless you have a patch or smth.
>
> Thank you.
>

Report message to a moderator

Re: [Devel] Filter container traffic [message #47009 is a reply to message #46858]

Wed, 27 June 2012 08:36

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

On 06/19/2012 06:10 AM, cheetah wrote:
> Hi Guys,
>
>
> I just setup my openvz environment. What I need to do now is to write
> a firewall to check each flow from container and decide if it is allowed.
>
> I noticed that for each container there is vmnet device.

You probably mean venet or veth. We do not have vmnet.

> I am wondering can I use open vswitch with this vmnet device?

It will be possible later, we have just finished porting OpenVSwitch to
our RHEL6 kernel. Now, it is not possible.

> (It seems not from what is mentioned here
> http://wiki.openvz.org/Virtual_network_device). If not, does that mean
> I have to use netfilter/contrack/iptables to implement my firewall?

Yes, you can use iptables. For venet case, you can use iptables on the
host system and/or inside CT. For veth case, you can only use iptables
inside containers (and on the host you can use ebtables I guess).

Kir Kolyshkin

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Re: [Devel] Filter container traffic [message #47011 is a reply to message #46858]

Wed, 27 June 2012 08:41

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

On 06/19/2012 06:10 AM, cheetah wrote:
> Hi Guys,
>
>
> I just setup my openvz environment. What I need to do now is to write
> a firewall to check each flow from container and decide if it is allowed.
>
> I noticed that for each container there is vmnet device. I am
> wondering can I use open vswitch with this vmnet device? (It seems not
> from what is mentioned here
> http://wiki.openvz.org/Virtual_network_device). If not, does that mean
> I have to use netfilter/contrack/iptables to implement my firewall?
> Could you please recommend some tutorials/readings?

I guess most of what we have is available from here:
http://wiki.openvz.org/Category:Networking

Kir Kolyshkin

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