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Numbers 8 and 9

Leam Hall — 2013-05-22T09:57:14

In a few minutes I'll get a call from a well known company that mostly 
started as a search engine. The person calling found me due to work I 
have done on a technical project.

Last year I wrote a blog post for job seekers.

http://leamhall.blogspot.com/2012/06/10-vital-tips-for-job-seeker.html

If you are considering a job search within the next twelve months I 
recommend the blog post. In this case #8 and #9 paid off for me.

If you are of a religious mind you may be familiar with Proverbs 22:29.

"Do you see a man skilled in his work? He will serve before kings; he 
will not serve before obscure men."

No matter what the outcome, know this: that a self-educated guy who 
started his career doing manual work in a furniture plant is getting 
this call tells me anyone out there can move forward if they apply 
themselves.

Leam

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Re: Suggestion for ARM box with 3-4+ PCI-based ethernets?

Raylynn Knight — 2013-05-22T05:05:04

For this application you might have better success searching for low power
MIPS based systems than ARM systems.  Look for something that uses the
Cavium Octeon processor.

Ray
 On May 21, 2013 12:25 PM, "Derek Atkins" <warlord-3s7WtUTddSA< at >public.gmane.org> wrote:

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Re: RFID Systems

Alex Carver — 2013-05-22T04:31:17

The RasPi probably has enough hamsters to pull off a small application 
like this and it would be easy to power from vehicle power (12V-5V 
switchmode DC/DC converter).  Doesn't have to be too complicated but 
there are also plenty of 12V direct SBCs around with options like 
MiniPCI and the like.  Anything running some form of Linux should allow 
you to set up a wireless interface as an AP so that it can service 
anyone around the vehicle (assuming the wifi dongle can be put into AP 
mode so just pick one that can).

In order to do multiple tags at once you must get a reader and set of 
tags that adhere to the anti-collision standards (ISO 18593 and ISO 
14430 are a start but there's now several ways).  I hadn't looked into 
multiple tag readers when I was trying to set up the inventory because 
the physical chemical handling protocol doesn't allow for more than one 
bottle to be in motion at any time (safety and insurance against 
dropping a bottle if you try to juggle more than one).  However, for 
most o

Re: RFID Systems

Doug Hall — 2013-05-22T03:55:41

Wow, that's some great info. I was thinking of a small computer with (the
hammer that I'm familiar with) a Ruby on Rails application which contains
one table that describes the items, linked to another table for the unique
data (where the unique RFID codes are), and perhaps a table for users, etc.
Not really a difficult database. I might even use SQLite as the DB. The
point of the app is simply to store what's supposed to be in the truck, so
that when they finish a project and prepare to leave, they can find out
what's missing. We could use the antennas by each door, and do the in/out
approach, but I think it would be equally acceptable to wave a wand all
throughout the truck, when they want to account for things, and have the
application tell them which items, if any, were last scanned more than #
minutes ago. I think that our project managers have iPhones, so they could
be used to interface with the Rails App, and possibly with the wand (if
necessary).

The small SBC sounds interesting. I'm pretty sure the

Re: RFID Systems

Alex Carver — 2013-05-22T00:54:43

A tiny SBC on the back-end is probably all you'll need to do live 
inventory.  Put a wireless card/dongle on it and set it up for AP mode 
to let any WiFi enabled smart phone, laptop or otherwise access it, no 
cell connection needed.  It also would give you persistent storage which 
you could save and transfer later to do things like determine what 
equipment is used (or not used) and how (in)frequently it gets used 
(useful for space management on the truck).

The best thing for inventory is to put RFID antennas on the inside and 
outside of the truck doors (one pair per access point to the gear).  As 
the equipment enters and leaves, you get tag information and direction 
(outside before inside, item going in; inside before outside, item going 
out).  That makes it idiot resistant and doesn't require any user to 
actively think about scanning/wanding/etc.  I was setting up a similar 
system for chemical inventory at a semiconductor research fab.  The 
chemical bottles were all tagged.  A bottle going into

RFID Systems

Doug Hall — 2013-05-22T00:20:17

I'm researching the use of RFID tags for inventory control for a truck full
of expensive video equipment. At the end of a project, our employees need
to be able to do a quick inventory of all the equipment on the truck, and
be able to quickly account for its contents. Ideally, the system could
leverage an iPhone front end but be served by an open-source back end -
perhaps a Rails application that I can write. They may not have internet
access, though. Sometimes the truck is needed in locations without cellular
access. So, if the application could work offline, that would be great.
It's not mandatory, though. Perhaps all I need to do is learn how to do
local storage in html5.

Any advice or suggestions would be welcomed - especially if you have direct
experience with RFID. I've written an inventory tracking system which uses
bar codes, but for as many (sometimes small) items as they need to track on
this truck, that would take too long. Also, it can be a separate and
simpler system than what I've done.

Thank

Re: Suggestion for ARM box with 3-4+ PCI-based ethernets?

JD — 2013-05-21T21:26:11

Check out http://www.pcengines.ch/alix.htm
I have doubts that GigE speeds can be supported by low-powered hardware, but I
do not know.

Hopefully, someone else with more success doing higher speed connections will
chime in.

On 05/21/2013 12:20 PM, Derek Atkins wrote:
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Re: Microcenter sells a PC loaded with Linux! of 20)

Scott Plante — 2013-05-21T21:14:27

Reportedly, Linus himself is a big fan of the high-end Chromebook with Linux loaded, and has been working on getting the necessary patches into the kernel. 
http://www.zdnet.com/chromebooks-biggest-fan-linus-torvalds-7000012842/ 


When we last bought desktops a few years ago, we were looking for some similar Linux and Windows mid-level configurations. We've bought Dell for a while, and we also shop locally at Gim Computers. Dell does offer Ubuntu and no OS, but they seemed to charge just as much or more than for the same thing with base Windows. Gim, as a small reseller, just charges for Windows as a line item--the rest of the box is the same price whether you buy a MS license or not. We ended up buying the Linux box from Gim and the Windows from Dell. We got double the memory and were able to go with somewhat higher components on the Gim box for the same money, but a near identical box would have been more expensive from them if we also had to buy the Win license (we didn't want home edition for Windows).

Re: Suggestion for ARM box with 3-4+ PCI-based ethernets?

Greg Clifton — 2013-05-21T17:56:58

You might want to take a look at Netgate.com they have 3 port
configurations, including one with GigE ports, but you will be spending a
couple hundred $


On Tue, May 21, 2013 at 12:39 PM, Sidus Nare <sidusnare-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:

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Re: Linux antivirus scanners

Jim Kinney — 2013-05-21T17:26:24

windows desktops as a file server.

They have a home Linux user license here:
http://www.f-prot.com/download/home_user/download_fplinux.html

Re: Linux antivirus scanners

Adrya Stembridge — 2013-05-21T17:25:08

That makes sense - when I last used it (2006) they were pushing commercial
licenses pretty heavily.


On Tue, May 21, 2013 at 1:10 PM, Alex Carver <agcarver+ale-3RUjp5oggEnR7s880joybQ< at >public.gmane.org>wrote:

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Re: Linux antivirus scanners

Alex Carver — 2013-05-21T17:10:24

Not according to F-prot's site. It's $299 for a single Linux/BSD 
license.  For a Windows system it's $29 for five home licenses and $50 
for ten business licenses.

On 5/21/2013 10:04, Adrya Stembridge wrote:

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Re: Linux antivirus scanners

Adrya Stembridge — 2013-05-21T17:04:50

Years ago F-Prot offered a free version - not sure if it's still available
that way.


On Tue, May 21, 2013 at 12:40 PM, Jim Kinney <jim.kinney-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:

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Re: Suggestion for ARM box with 3-4+ PCI-based ethernets?

Sidus Nare — 2013-05-21T16:39:19

I thin khttp://routerboard.com has some stuff like what you might want.
There are others like them that advertise in the Linux magazines, I
don't remember them all right now

On 05/21/2013 12:20 PM, Derek Atkins wrote:
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Re: Linux antivirus scanners

Jim Kinney — 2013-05-21T16:40:28

Look at F-prot. Solid product and very fast for scanning entire drives.
$50/yr for 10 licenses.


On Tue, May 21, 2013 at 11:57 AM, Alex Carver <agcarver+ale-3RUjp5oggEnR7s880joybQ< at >public.gmane.org>wrote:

Suggestion for ARM box with 3-4+ PCI-based ethernets?

Derek Atkins — 2013-05-21T16:20:33

Alers,

I'm looking for something to replace my existing dd-wrt router (or at
least to separate out my router functionality from my Wifi capability).
I'm looking for an arm box (I want the very low power use of an ARM),
but I want ethernet via PCI (or on-chip), not through the USB Bus like
on many ARM boxes, due to speed requirements.  I'm looking for at least
3 10/100/1000 ethernet ports because I want to support multiple WANs,
some of which might exceed 100mbps.

So, suggestions?  My understanding is that the RPi's ethernet is via
USB.  Cubieboard is only 10/100.  I haven't looked around at other ARM
systems.

I'd be willing to use non-ARM if it can get down to the 10-15W power
profile.  I'd even be willing to swap over to a "real router" if I can
get the price point down, but last I checked a Cisco of sufficient speed
and ports would cost me several hundred dollars.

Thanks,

-derek

Re: Linux antivirus scanners

Alex Carver — 2013-05-21T15:57:18

Well, this was to be used on the home network so I don't need the extreme.

The Windows desktops don't run their own AV because every AV I've tried 
always has some bloated resident component that drags down the system. 
None of the boxes have the horsepower for a VM so that's out.  Central 
file server isn't here yet, I'm working on it slowly as funds permit 
(this requires a new machine plus disks).  Until then it's just mount 
and scan remotely.  The central scanning machine isn't a file server 
right now, it's just a (old) tinker box.


On 5/21/2013 08:22, Jim Kinney wrote:

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Re: Linux antivirus scanners

Jim Kinney — 2013-05-21T15:22:42

+1

Better process is to have a scanner on each desktop but ALL files are
stored on central server. That makes each desktop a readily replaceable
thing and centralizes the AV scan on the bulk of the files. Part 2 is run
that fileserver as a samba server and use squid proxy and ClamAV to scan
all data entering via WAN as well as email. That narrows your entrance
vector to USB and optical disk infection. So unplug data cable on optical
drives and disable all USB ports except for keyboard and mouse and bolt a
shield around those plugs so they can't readily be removed.

Best route is to use Linux boxes at the desktop running a KVM instance of
Win7 with only keyboard and mouse on USB. If ANYTHING happens, toss the
image and restore from backup and restart. will take about 5 minutes.


On Tue, May 21, 2013 at 11:02 AM, Jeff Hubbs <jhubbslist-fOdFMYwuEsI< at >public.gmane.org> wrote:

Re: Linux antivirus scanners

Chuck Payne — 2013-05-21T15:13:58

If you have used AVG, they have a free version for Linux.

http://free.avg.com/us-en/download.prd-alf

If I have to money, I love Sophos for Linux it is the best for it money.

On Tue, May 21, 2013 at 11:02 AM, Jeff Hubbs <jhubbslist-fOdFMYwuEsI< at >public.gmane.org> wrote:

Re: Linux antivirus scanners

Alex Carver — 2013-05-21T15:13:18

Yep, I do.  Private GigE network so it's fine.

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Re: Linux antivirus scanners

Jeff Hubbs — 2013-05-21T15:02:23

That's going to mean reading out their entire filesystem over the 
network, right?  Do you really want to do that?
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