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Date:      Tue, 20 Jul 2010 16:23:32 -0400
From:      alexus <alexus@gmail.com>
To:        Erik Norgaard <norgaard@locolomo.org>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ipnat.conf - map and rdr won't work!
Message-ID:  <AANLkTimFKATt4_4umseRhcrDl7BLkOuNvOfuXIGHrdJB@mail.gmail.com>
In-Reply-To: <4C45F0F1.7010609@locolomo.org>
References:  <AANLkTilVTo36Fzdh2DKAQhRjyDj8MNUuV9dhwvQ7Gf-V@mail.gmail.com> <AANLkTinh0CykJ1Av3f2THPDFOLS0YtYLDvRMHXm_wD3w@mail.gmail.com> <4C3F91CF.5090206@locolomo.org> <AANLkTin6hYyHiG8taifkNHPBtKI0rKOkAaGRYodV1LLC@mail.gmail.com> <4C419944.8030702@locolomo.org> <AANLkTin8H47Z7suztGnWpa8fm-XIagQ6vzlxP85OIT-B@mail.gmail.com> <4C447F7F.6020308@locolomo.org> <AANLkTinM1E2Obrs8VqSsm3S_jcXqbw_Q1YLkc51tgJsS@mail.gmail.com> <4C45D57F.2020506@locolomo.org> <AANLkTinXjSXlL59mVU5bh-cIqxwHg5C3pgOsA7tcqFMk@mail.gmail.com> <4C45F0F1.7010609@locolomo.org>

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On Tue, Jul 20, 2010 at 2:54 PM, Erik Norgaard <norgaard@locolomo.org> wrot=
e:
> On 20/07/10 20.07, alexus wrote:
>>
>> On Tue, Jul 20, 2010 at 12:57 PM, Erik Norgaard<norgaard@locolomo.org>
>> =C2=A0wrote:
>> plan b is to run natd, but i'd rather run ipnat especially that ipnat
>> used to work before no problem!
>
> Maybe move away from what used to work and towards what is working :)
> Whichever you prefer, just stick to one solution only.

right, yet I still would like to know where problem is :))

>> su-3.2# ping -c1 lama
>> PING lama (172.16.172.16): 56 data bytes
>> 64 bytes from 172.16.172.16: icmp_seq=3D0 ttl=3D64 time=3D0.075 ms
>>
>> --- lama ping statistics ---
>> 1 packets transmitted, 1 packets received, 0.0% packet loss
>> round-trip min/avg/max/stddev =3D 0.075/0.075/0.075/0.000 ms
>> su-3.2#
>>
>> ip address tells me that this is in fact jail's IP
>
> Yes and no, if you shut down your jail you should still be able to ping t=
hat
> ip as I read your snippet from your rc.conf.

you right, i'm pinging ip that resides on another interface and
doesn't really belong to jail at the first place
you asked me if I can ping jail from host, I dont know how else I can
test it then
pinging ip is kind of pointless then, so i ssh in that seems to be
working, what else can I try?

>>> So I suppose that from your host environment you can ssh into the jail?
>>> Did
>>> ssh start up, netstat -l? From the jail, can you ping the host
>>> environment?
>>
>> su-3.2# jls
>> =C2=A0 =C2=A0JID =C2=A0IP Address =C2=A0 =C2=A0 =C2=A0Hostname =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Path
>> =C2=A0 =C2=A0 =C2=A01 =C2=A0172.16.172.16 =C2=A0 lama =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0/u=
sr/jail/lama
>> su-3.2# jexec 1 /etc/rc.d/sshd status
>> sshd is running as pid 1085.
>> su-3.2# ps -p 1085
>> =C2=A0 PID =C2=A0TT =C2=A0STAT =C2=A0 =C2=A0 =C2=A0TIME COMMAND
>> =C2=A01085 =C2=A0?? =C2=A0IsJ =C2=A0 =C2=A00:00.00 /usr/sbin/sshd
>> su-3.2#
>>
>
> OK, but you didn't check where your ssh binds.

su-3.2# netstat -tan | grep LISTEN | grep 22
tcp4       0      0 172.16.172.16.22       *.*                    LISTEN
su-3.2#

would that sufficient? I just don't know how else I can see ..

>> i know, i can run it that IP address as an alias on public interface,
>> but we on purpose added another NIC to be private NIC.
>
> Well, read the man jail(8):
>
> ip4.addr
> =C2=A0 =C2=A0 =C2=A0A comma-separated list of IPv4 addresses assigned to =
the prison.
> =C2=A0 =C2=A0 =C2=A0If this is set, the jail is restricted to using only =
these
> =C2=A0 =C2=A0 =C2=A0address. =C2=A0Any attempts to use other addresses fa=
il, and attempts
> =C2=A0 =C2=A0 =C2=A0to use wildcard addresses silently use the jailed add=
ress
> =C2=A0 =C2=A0 =C2=A0instead. ...
>
> If I understand this correctly, remove the line
>
> =C2=A0jail_lama_ip=3D"172.16.172.16"
>
> from your rc.conf and your jail can then bind to port 22 on the external
> interface thus bypassing the need for nat. This is ok, since all you did =
was
> redirecting traffic. And the map rule shouldn't be necessary either, nor
> should the fxp interface.
>
> BR, Erik
>

i actually like this idea, i think i'm going give that a shot...
i'll let you know how that worked out...

--=20
http://alexus.org/



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