[Discuss] Tutorials in IPTABLES

[John Tag hart]

Hello justice, 

yes I solved it both with chained vm's forwarded and by externalizing to a simple 1u I found a couple of tutorials that were helpful. I've also implemented a VPN round robin in the hardware box that lets me script out what country and exit node. Fun stuff!

I do however value having "UNIX beards" on tap. What are your areas of expertise? 

Jean



Sent from my iPhone

> On Aug 26, 2016, at 1:06 PM, Gerald Justice <justice.gerald at gmail.com> wrote:
> 
> Bonjour Jean,
> 
> Did you ever resolve this?
> 
> I have considerable experience with iptables for firewalls though I'm not sure that I'm the best to present a tutorial.
> 
> As Lionel suggested, some basic debugging often provides clarification.
> 
> Merci,
> 
> Gerry
> 
> 
> 
>> On Mon, Jun 20, 2016 at 5:26 PM, Jean Taggart <jean.philippe.taggart at gmail.com> wrote:
>> Hello Lionel.
>> 
>> My weird use case is to chain a virtualbox host only adaptor to another. I’m essentially going from one VM to another. The second vm is a debian box that will run openvpn and tunnel out. The goal is that if the Debian VM isn’t running, there’s no internet access.
>> 
>> I’ve followed a tutorial and I got some of it to work.
>> 
>> I’m willing to pay for the tutorial. As such knowledge is highly specialized, $100 an hour with a 2 hour minimum sounds amenable.
>> 
>> Cheers,
>> 
>> Jean Taggart
>> 
>> > On Jun 20, 2016, at 4:49 PM, Lionel Widdifield <lwiddif-vlug at nexus.spydernet.ca> wrote:
>> >
>> > On Mon, Jun 20, 2016 at 02:49:39PM -0700, Jean Taggart wrote:
>> >> I'm looking for someone who knows IPTABLES beyond just the basics. I have a weird use case
>> >
>> > could you define "weird use"  from experience 3 out of 4 times people
>> > forget that tcpip is bi-directional when they build firewalls.
>> >
>> > Getting a tcpdump of the interface usually results in "face meeting palm" repeatedly.
>> >
>> >
>> >
>> > --
>> >   Lionel Widdifield
>> >
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>> 
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