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Date:      Fri, 23 Mar 2018 20:17:27 +0100
From:      joerg_surmann <joerg_surmann@elektropost.org>
To:        Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
Cc:        freebsd-stable@freebsd.org, freebsd-current@freebsd.org
Subject:   Re: Two NIC's inside a Jail
Message-ID:  <d2b11066-0313-81b9-933c-67721054488c@elektropost.org>
In-Reply-To: <20180323172504.GA55971@plan-b.pwste.edu.pl>
References:  <785ce70f-3f2d-3422-0e95-146b05f7f768@elektropost.org> <20180323172504.GA55971@plan-b.pwste.edu.pl>

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From: joerg_surmann <joerg_surmann@elektropost.org>
To: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
Cc: freebsd-stable@freebsd.org, freebsd-current@freebsd.org
Message-ID: <d2b11066-0313-81b9-933c-67721054488c@elektropost.org>
Subject: Re: Two NIC's inside a Jail
References: <785ce70f-3f2d-3422-0e95-146b05f7f768@elektropost.org>
 <20180323172504.GA55971@plan-b.pwste.edu.pl>
In-Reply-To: <20180323172504.GA55971@plan-b.pwste.edu.pl>

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Hi,

thanks for yor help.

I can't find a solution.

But i have find a starnge ip config.

in rc.conf on Host(not jail)

ifconfig_vmx0_alias1=3D"inet 192.168.100.2=C2=A0 netmask 255.255.255.0"
ifconfig_em0=3D"inet 213.70.80.92 netmask 255.255.255.0"

ifconfig on host say:
inet 213.70.80.92 netmask 0xffffffff broadcast 213.70.80.92
inet 192.168.100.2=C2=A0 netmask 0xffffffff broadcast 192.168.100.2

ifconfig say to both ip's /32.

Maby that's the reason for unavailable the apache.

ifconfig iside the jail say the same.

I'm a little bit confused.



Am 23.03.2018 um 18:25 schrieb Marek Zarychta:
> On Fri, Mar 23, 2018 at 04:01:30PM +0100, Joerg Surmann wrote:
>> Hi all,
>>
>> I have a Problem to understund how to manage 2 Networks inside a Jail.=

>>
>> i have create a jail (using ezjail) with a alias IP.  in rc.conf (on
>> Host):
>>
>> ifconfig_vmx0=3D"inet 192.168.100.1 netmask 255.255.255.0"
>> ifconfig_vmx0_alias0=3D"inet 192.168.100.2 netmask 255.255.255.0"=C2=A0=
 <-
>> this is the jail ip
>>
>> Inside the jail running apachhe24.
>>
>> Now i add a new NIC to the System.  in rc.conf (on Host):
>> ifconfig_em0=3D"inet 213.70.80.92 netmask 255.255.255.0"
>>
>> in /usr/local/etc/ezjail/myjail.conf: i add the new ip export
>> jail_myjail_ip=3D"192.168.100.2,213.70.80.92"
>>
>> Restart the jail and ifconfig looks fine.  vmx0 -> inet 192.168.100.2
>> em0=C2=A0 -> inet 213.70.80.92
>>
>> Apache Listen on all NIC's (<VirtualHost *:80>) But i can see my
>> Website only via 192.168.100.2 from intern Network.
>>
>> The Host is behind a Firewall.  The IP=C2=A0 213.70.80.92 is enabled f=
or
>> incomming Traffic.
>>
>> When i give the Hostname in a Browser i become "connection Timeout".
>>
>> What is to do that the Host is accessable from Inet?
>>
> Hi Joerg,=20
>
> I guess your host has default gw reachable via vmx0 and second interfac=
e
> em0 is connected and was reachable at least from firewall protecting
> address 213.70.80.92? If it is true then you should add:=20
>
> to /usr/local/etc/ezjail/myjail.conf=20
> export jail_myjail_ip=3D"lo1|127.0.1.1,vmx0|192.168.100.2,em0|213.70.80=
=2E92"
> export jail_myjail_fib=3D"1"
>
> to /etc/rc.conf
> static_routes=3D"net_jails"
> route_net_jails=3D"default 213.70.80.x -fib 1"
>
> to /boot/loader.conf
> net.fibs=3D"2"
>
> Eventually take a look at setfib(1) and also consider migrating em
> adapter to second vmx which shuld be faster and more flexible.
>
> IMHO this questions should be asked rather on freebsd-net list than
> here.



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