[aklug] Re: sequesteredsolutions?

From: Shane Spencer <shane@bogomip.com>
Date: Wed Mar 03 2010 - 23:49:05 AKST

udpcast has a pretty good FEC as well.

I did the same test and maxed out (cpu bound due to encryption) at
4M/s (a.k.a. 32megabit/second)

spencersr@salival:~/Downloads$ cat
Men.of.a.Certain.Age.S01E05.Powerless.REPACK.HDTV.XviD-SYS.avi | gpg
-e -r oneway@doom | udp-sender --async --max-bitrate 70m --fec 8x8
stripes=3D8 redund=3D8 stripesize=3D128
Udp-sender 2004-05-31
Using mcast address 234.42.3.159
UDP sender for (stdin) at 10.42.3.159 on eth0
Broadcasting control to 10.42.3.255
Ready. Press any key to start sending data.
Starting transfer: 00000039
bytes=3D 362 905 784 re-xmits=3D000000 ( 0.0%) slice=3D1024 73 709 551=
 615 - 0
Transfer complete.

spencersr@salival:~/Downloads$ md5sum
Men.of.a.Certain.Age.S01E05.Powerless.REPACK.HDTV.XviD-SYS.avi
3ebb3d9926357ed2b38f166c532668a3
Men.of.a.Certain.Age.S01E05.Powerless.REPACK.HDTV.XviD-SYS.avi

---
spencersr@undertow:~$ udp-receiver | gpg -d -r oneway@doom >
Men.of.a.Certain.Age.S01E05.Powerless.REPACK.HDTV.XviD-SYS.avi
Udp-receiver 2004-05-31
UDP receiver for (stdout) at 10.42.3.102 on eth0
Connected as #0 to 10.42.3.159
Listening to multicast on 234.42.3.159
gpg: encrypted with 2048-bit ELG-E key, ID 0EDEC093, created 2010-03-04
      "One Way Xfer Of Doom (Doom) <oneway@doom>"
bytes=3D    362 905 784  ( 32.76 Mbps) 73 709 551 615
Transfer complete.
spencersr@undertow:~$ md5sum
Men.of.a.Certain.Age.S01E05.Powerless.REPACK.HDTV.XviD-SYS.avi
3ebb3d9926357ed2b38f166c532668a3
Men.of.a.Certain.Age.S01E05.Powerless.REPACK.HDTV.XviD-SYS.avi
--
Without encryption and reading from memory I maxed it out at 73Mbps.
Interesting.. with a little tweaking in inetd and some scripting it
would be possible to retransmit any udp unicast/multicast data much
like the other one-way solutions.  What scares me is the one-way TCP
products that a few companies have out there.  Very odd.
On Wed, Mar 3, 2010 at 10:48 PM, Josh Rhoades <kaiden11@gmail.com> wrote:
> That's pretty awesome, man. And here I thought "in-place"
> tar-and-compress was as good as it gets.
>
> On Wed, Mar 3, 2010 at 8:54 PM, Shane Spencer <shane@bogomip.com> wrote:
>> Alright. =A0So I implemted a 100% one way only ciphered and forward
>> error corrected UDP stream.
>>
>> The point is to pass data from a low security area to a high security
>> area while avoiding protocol flaws. =A0IP Datagrams that only travel one
>> way seems like a good start.
>>
>> Lowsecure System =3D3D 10.42.3.159
>> Highsecure =3D3D 10.42.3.102
>>
>> ----
>>
>> lowsecure# pv -L 1M -W
>> Downloads/Men.of.a.Certain.Age.S01E06.HDTV.XviD-SYS.avi | gpg -e -r
>> oneway@doom - | vdm_encode | socat - UDP:10.42.3.102:4242,shut-null
>> =A0351MB 0:05:52 [0.997MB/s [=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D=
3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D
>> =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D>] 100%
>>
>> highsecure# socat UDP-LISTEN:4242 - | vdm_decode | gpg -d -r
>> oneway@doom - > /tmp/crap
>> gpg: encrypted with 2048-bit ELG-E key, ID 0EDEC093, created 2010-03-04
>> =A0 =A0 =A0"One Way Xfer Of Doom (Doom) <oneway@doom>"
>> ----
>>
>> The packet dump looked like this (note.. the ARP
>>
>> tcpdump -i eth0 -vvvvvvvvvvvvvnl src host 10.42.3.102
>> tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96=
 by=3D
>> tes
>> 20:47:31.844321 ARP, Ethernet (len 6), IPv4 (len 4), Reply 10.42.3.102
>> is-at 00:0f:1f:83:41:12, length 46
>> 20:47:57.836327 ARP, Ethernet (len 6), IPv4 (len 4), Reply 10.42.3.102
>> is-at 00:0f:1f:83:41:12, length 46
>> 20:48:31.195306 ARP, Ethernet (len 6), IPv4 (len 4), Reply 10.42.3.102
>> is-at 00:0f:1f:83:41:12, length 46
>> 20:49:04.548367 ARP, Ethernet (len 6), IPv4 (len 4), Reply 10.42.3.102
>> is-at 00:0f:1f:83:41:12, length 46
>> 20:49:37.956354 ARP, Ethernet (len 6), IPv4 (len 4), Reply 10.42.3.102
>> is-at 00:0f:1f:83:41:12, length 46
>>
>> On Wed, Mar 3, 2010 at 6:57 PM, Shane Spencer <shane@bogomip.com> wrote:
>>> I've heard of them.. infact this specific product can be reduced to a
>>> few programs and a very minimal amount of scripting for a basic
>>> interface. =3DA0Give me a second and I'll post the solution to the list=
.
>>>
>>> On Tue, Mar 2, 2010 at 2:45 PM, Lee <lee@afabco.org> wrote:
>>>> Anyone heard of or know anything about an outfit called sequesteredsol=
ut=3D
>> ions.com here
>>>> in alaska? =3DA0Or better yet, use or have used their Trapline product=
? =3D
>> =3DA0I'm doing some
>>>> informal due diligence on this. =3DA0Please reply offlist to lee(at)af=
abco=3D
>> <dot>org.
>>>>
>>>> thanks!
>>>>
>>>>
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>>>>
>>>
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>>
>
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Received on Wed Mar 3 23:49:15 2010

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