Date: Tue, 31 May 2016 02:42:37 +0000 (UTC) From: =?UTF-8?Q?Sebasti=C3=A1n_Maruca?= <juanperiz@yahoo.com.ar> To: wishmaster <artemrts@ukr.net>, =?UTF-8?Q?Sebasti=C3=A1n_Maruca?= <seba@econ.uba.ar> Cc: "freebsd-jail@freebsd.org" <freebsd-jail@freebsd.org> Subject: Re: deploy multiple vnets with VIMAGE/VNET + Production Ready? Message-ID: <1681543684.2075452.1464662557505.JavaMail.yahoo@mail.yahoo.com> In-Reply-To: <1464632136.649261509.wqj3p1n9@frv34.fwdcdn.com> References: <366569840.1294540.1464534933908.JavaMail.yahoo.ref@mail.yahoo.com> <366569840.1294540.1464534933908.JavaMail.yahoo@mail.yahoo.com> <1464632136.649261509.wqj3p1n9@frv34.fwdcdn.com>
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I thank you all for your fast and kind reply!
I was in spite of building some kind of API above pf(4) to let each jail ac=
t as a tenant firewall... Maybe I should wait to 11-RELEASE birth to go for=
it...=C2=A0
Meanwhile I think I'll get over it with an API/framework that can handle pf=
with its anchor files doing basic VLAN acls as a virtual way of achieving =
this, aside security concerns...
De: wishmaster <artemrts@ukr.net>
Para: Sebasti=C3=A1n Maruca <seba@econ.uba.ar>=20
CC: freebsd-jail@freebsd.org
Enviado: Lunes, 30 de mayo, 2016 15:31:27
Asunto: Re: deploy multiple vnets with VIMAGE/VNET + Production Ready?
=20
Hi,
> Hi to everyone!
> I want to deploy several "jailed" firewalls, where each one of them would=
contain at least three multiple virtual interfaces (associated with virtua=
l internal nets) like "WAN", "LAN" and "DMZ" for example...
> First *innocent* question (I beg you pardon for my ignorance dealing with=
jails!) Can vnet/vimage help me deploy such a complex jailed environment??=
?
=C2=A0 Yes. If you need help you can email me privately.
> Secod *innocent* question, so far so good, reading at jail manpage (circa=
July 6, 2015/FreeBSD 10.3) it seems VNET/VIMAGE is fully integrated to the=
FreeBSD kernel, is VNET/VIMAGE ready for production level???
=20
Yes. I have been using vneted Jail from 10.0 in quite complex scenarios. Ye=
s, there are some open issues with vnet (pf, memory leak on stopping jail a=
nd so on), but I think in 11-RELEASE this bugs will be fixed. Currently Bjo=
rn Zeeb works on this problems. See https://svnweb.freebsd.org/base/project=
s/vnet/
But for now, you can safely use vnet. Just use IPFW and do not start/stop j=
ails needlessly.
> As a side note, at the host level would a be some kind of API/service tha=
t would deal with pfctl in order to rule flows between all of them...
> Best regards,Seba
--
Vitaliy
=20
=20
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Date: Tue, 31 May 2016 08:39:30 +0200
From: Lars Engels <lars.engels@0x20.net>
To: Ernie Luzar <luzar722@gmail.com>
Cc: =?utf-8?Q?Sebasti=C3=A1n?= Maruca <seba@econ.uba.ar>,
freebsd-jail@freebsd.org
Subject: Re: deploy multiple vnets with VIMAGE/VNET + Production Ready?
Message-ID: <20160531063930.GE15808@e-new.0x20.net>
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On Mon, May 30, 2016 at 09:40:42AM -0400, Ernie Luzar wrote:
> Here are the bare truths without any sugar coating.
> Vimage is officially described as experimental. You have to recompile=20
> the kernel to included vimage. Enabling pf or ipf firewalls cause the=20
> host to crash. ipfw firewall does not cause a crash but has next to no=20
> real life usage on vimage. When stopping vimage jails there is a problem=
=20
> with memory loss. You need a high proficiency in coding netgraph which=20
> is used to tie the hosts network to each vimage jail. Needs a public=20
> network with multiple static ip address & registered domain names even=20
> to test it.
>=20
> A few brave soles have accepted these short comings and have deployed=20
> vimage in a production environment with good results so they say, or at=
=20
> best they have not reported any problems. I guess it all depends of what=
=20
> your shop defines "production ready" as. At my shop vimage is NOT=20
> considered something management is willing to base the business on.=20
> Maybe your shop is different.
>=20
> There are a few write ups about how to configure vet/vimage jails, but=20
> their out of date. IE: 8.x & 9.x releases which are at EOL [end of life,=
=20
> unsupported]. The current production version of Freebsd is at 10.3 with=
=20
> 11.0 due out in August. Only know of one utility jail tool that has=20
> vnet/vimage function. Try the qjail port, it will shorten your learning=
=20
> curve.
sysutils/iocage also supports VIMAGE
>=20
> Now there is a guy who is patching vimage trying to get it so it can be=
=20
> incorporated into the base kernel. His goal was to get it into release=20
> 11.0, but updates to 11.0 source are now suspended until 11.0 is=20
> published so thats not going to happen. They sure would not incorporate=
=20
> viamge without a general announcement calling for users to test drive it=
=20
> first. This has not happened yet that I know of.
You seem to forget that there have been fixes already in HEAD:=20
http://freshbsd.org/search?branch=3DHEAD&project=3Dfreebsd&q=3Dvimage+OR+vn=
et
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