Re: Frames and Motorola's New Router.

[Thomas Charron]

  I found this, maybe it will help.
https://kevinlocke.name/bits/2019/12/28/checking-802.11w-support/


On Tue, Mar 14, 2023, 4:08 PM Lori Nagel  wrote:

>
> I think that is it.  It is a new motorola router.
> On Monday, March 13, 2023 at 07:46:17 PM EDT, Thomas Charron <
> twaf...@gmail.com> wrote:
>
>
> He might mean protected management frames?
>
> On Mon, Mar 13, 2023, 7:36 PM Ben Scott  wrote:
>
> At 2023 Mar 12 Sun 09:36 PM -0400, Bruce Labitt <
> bruce.lab...@myfairpoint.net> wrote:
> >>> Why don't linux machines let me use the Wi-Fi when the router is set
> to frames.
> >>> It is supposed to be enhanced security, but it only works under
> windows.
> >>
> >> I'm not sure what you mean here.
> >
> > Perhaps the router was set to use jumbo frames?
>
> Jumbo frames aren't a security feature.  They also work under Linux.  They
> also don't make any sense on a home router, where the MTU for the WAN side
> will almost always be the same or less than regular Ethernet frames, let
> alone jumbo.
>
> -- Ben
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Re: Frames and Motorola's New Router.

[Thomas Charron]

  That wouldn't be a "Linux won't work" as much as it may be a driver
incompatibility or, something that requires some setup.  What brand is your
wifi card?


On Tue, Mar 14, 2023, 4:08 PM Lori Nagel  wrote:

>
> I think that is it.  It is a new motorola router.
> On Monday, March 13, 2023 at 07:46:17 PM EDT, Thomas Charron <
> twaf...@gmail.com> wrote:
>
>
> He might mean protected management frames?
>
> On Mon, Mar 13, 2023, 7:36 PM Ben Scott  wrote:
>
> At 2023 Mar 12 Sun 09:36 PM -0400, Bruce Labitt <
> bruce.lab...@myfairpoint.net> wrote:
> >>> Why don't linux machines let me use the Wi-Fi when the router is set
> to frames.
> >>> It is supposed to be enhanced security, but it only works under
> windows.
> >>
> >> I'm not sure what you mean here.
> >
> > Perhaps the router was set to use jumbo frames?
>
> Jumbo frames aren't a security feature.  They also work under Linux.  They
> also don't make any sense on a home router, where the MTU for the WAN side
> will almost always be the same or less than regular Ethernet frames, let
> alone jumbo.
>
> -- Ben
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Re: Frames and Motorola's New Router.

[Thomas Charron]

He might mean protected management frames?

On Mon, Mar 13, 2023, 7:36 PM Ben Scott  wrote:

> At 2023 Mar 12 Sun 09:36 PM -0400, Bruce Labitt <
> bruce.lab...@myfairpoint.net> wrote:
> >>> Why don't linux machines let me use the Wi-Fi when the router is set
> to frames.
> >>> It is supposed to be enhanced security, but it only works under
> windows.
> >>
> >> I'm not sure what you mean here.
> >
> > Perhaps the router was set to use jumbo frames?
>
> Jumbo frames aren't a security feature.  They also work under Linux.  They
> also don't make any sense on a home router, where the MTU for the WAN side
> will almost always be the same or less than regular Ethernet frames, let
> alone jumbo.
>
> -- Ben
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Re: bandwidth capture question

[Thomas Charron]

On Fri, May 4, 2018 at 1:09 PM, jsf  wrote:

> Hi friends,
>
> I am IT dir. at a small independent school in CT nowadays.  I have a
> comcast modem.  my firewall plugs into a wired port in the comcast modem.
> I have an old PC running windows 8.1.  I have installed wireshark on the
> old PC.  I have plugged the old PC's network interface into another wired
> port on the comcast modem.  Ideally I would like to use wireshark to
> capture EVERYTHING going across the modem - basically everything that is
> going in and out of the connection between the modem and my firewall.  I am
> at a loss w/r/t how to set this up properly.
>

  That'd be doing it wrong, and you'd be looking at a giant list of
spaghetti.


> I am trying to get a sense regarding the schools' bandwidth usage.. we
> have 150/25 over coax.  i think performance is pretty good most of the time
> (we are a small school).. but not everyone agrees with me.  If we have too
> little bandwidth (are hitting a max periodically) I'd like to know that.
>
> Thanks in advance for help with this and recommendations about anything
> else I should put on this old PC to help with this exercise.
>

  It's best to be looked at from the firewalls perspective.  What are you
using for a firewall?  Is it up to the task to NAT the number of sessions
it is likely having to NAT?  The first place I would look would be the
firewall itself.  Many times, a cheap/underpowered firewall is the cause of
crappy speeds, and not the network itself.

  Thomas
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Re: Suggestions: Job boards, listings, contacts? for Senior Technical Writer

[Thomas Charron]

On Tue, Sep 19, 2017 at 4:41 PM, Tom Buskey  wrote:

> Pick your recruiters carefully.
> A good one will help you find the right fit.
>
> A bad one will get you ignored by an employer.  I once worked with a bad
> one and later encountered them from the employer's side (my boss).  My boss
> will never hire someone from that recruiter again.
>

  +100

  A good 'bad sign' is, if they start showing you jobs that aren't in your
wheelhouse *at all* after already providing feedback that you don't have
any experience in something important for that job.

  Thomas
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Re: Any miners?

[Thomas Charron]

  You'll use more electricity then you'll get, at least for Bitcoin.  Some
simple searches and, basic math should set your son strait.

  Thomas

On Jun 16, 2017 6:00 PM, "Greg Rundlett (freephile)" 
wrote:

> My son is investigating crypto-currency mining and seems to think it's
> incredibly lucrative.
>
> I've not delved into it at all.
>
> Comments? Anyone actually making money mining?
>
> From what I've previously gathered, I thought the amount of computational
> power, expense and electricity just about squeezed out anybody but those
> with super-specialized hardware.
>
> Greg Rundlett
> https://eQuality-Tech.com
> https://freephile.org
>
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Re: Multiple default gateways.

[Thomas Charron]

On Wed, Apr 26, 2017 at 9:21 AM, Ken D'Ambrosio  wrote:

>   Then someone on a BBS I'm on
> pasted this link:
> https://kindlund.wordpress.com/2007/11/19/configuring-
> multiple-default-routes-in-linux/


  Z0mg!  Ken, your not going to believe this, but this message JUST came to
the list in 2017!  Wait till you find out about the internet!

  :-P

  Reading BBS just made me giggle..

  Thomas
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Re: Phone SPAM/SCAM

[Thomas Charron]

  Hehe, I got that scam as well.  Truecaller filtered it out, but they left
a message.

  Thomas

On Mon, Jun 27, 2016 at 4:07 PM, mad...@li.org 
wrote:

> Hi,
>
> Received this on my answering machine.  I do not know what type of scam
> this is, but I called
> the number using Skype and got what sounded like an East Indian voice who
> asked for my "case number" and when I told them I did not have a case
> number, they asked for my address
> and zip code so they could tell me what they had been calling for.
>
> md
>
> >"Message. I need you or your retained attorney of records to return the
> call.
> >The issue at hand is extremely time sensitive. My phone number is
> 276-258-0531.
> >Do not disregard this message and do return the call. Now if you don't
> return
> >the call and I don't hear from your attorney either then the only thing I
> can
> >do is wish you a good luck as the situation totally unfolds on you.
> Goodbye."
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Re: Fw: new message

[Thomas Charron]

Go Go Gadget Spam!



On Fri, Apr 22, 2016 at 6:23 PM, Susan Cragin 
wrote:

> Hello!
>
>
>
> *You have a new message, please read*
> http://www.buyadrugstore.com/plate.php
> 
>
>
>
> Susan Cragin
>
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Re: Opinions on Tor?

[Thomas Charron]

On Thu, Sep 10, 2015 at 4:43 PM, jsf  wrote:

> I believe TOR, although it, (like anything) can be used for ill/evil,
> is essentially an important tool for good.  Thanks for the link to the
> EFF petition. Shared it.



  It occured to me, but, if they're concerned about it's use, can't the tor
ode simply be behind a firewall, and provide the sample protections as any
other joe shmoe who's at the library?

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Re: gps navigation project?

[Thomas Charron]

On Tue, Aug 25, 2015 at 4:13 PM, Bill Ricker bill.n1...@gmail.com wrote:

 Interesting ideas.
  Sometime you don't want to go north on 93 on Friday.  Rt 3 is less
  congested...

 Rt 3 being less bad than anything is  scary ...


  Waze uses the real time traffic data in it's trip planning, and
periodically recalculates the various routes and will change your route
based on traffic information.

  Thomas
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Re: Virtual machine host provider recommendations

[Thomas Charron]

On Wed, Jul 15, 2015 at 1:46 PM, Matt Minuti matt.min...@gmail.com wrote:

 I've had bad luck with Chicagovps, you really do get what you pay for with
 them, and trying to reset a server tends to result in a week of downtime
 and a few support tickets. Digitalocean has been great and really cheap.
 They've been my go-to for most things. Rackspace is a little pricey, but
 their support is second-to-none. I doubt support would be needed often in
 this case ;)

  That's..  odd.  I've reset my server a few times with no issues..  Good
to know tho.

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Re: Virtual machine host provider recommendations

[Thomas Charron]

  I use ChicagoVPS, and love it..  Cheap and reliable.

http://www.chicagovps.net/openvz.html

  Thomas

On Wed, Jul 15, 2015 at 12:09 PM, Mark McSweeney mark.mcswee...@gmail.com
wrote:

  GNHLUG's server is being kicked out of our long-time free hosting.
 Rather than trying to find a new home for the box, I'm thinking I'll just
 buy an account on a virtual machine hosting company, install a new system,
 and transfer to there.  That is the quickest and easiest path, and we do
 not have a lot of time.  Our deadline is JUL 31, roughly two weeks from now.
 

 I'm not sure where the funds will come from but I would like to donate
 at least a small amount to help defray the cost. Not sure to who or
 where the funds should go.

 Let me know if I (or others) can help.

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Re: Help: HOWTO buy IP address blocks from ARIN?

[Thomas Charron]

On Tue, Jan 13, 2015 at 1:29 PM, Joshua Judson Rosen roz...@hackerposse.com
 wrote:

 On January 9, 2015 5:56:43 PM EST, John Abreau wrote:
 What are your project's needs that explicitly require 4K distinct
 public
 addresses and that cannot function using private addresses and NAT
 instead?

 'Project' is a geographically-distributed tech company with a bunch of
 frequently-mobile sub-networks where at least one end of any given
 'internal' connection actually needs to be going out from behind someone
 else's network.

 There's certainly a chance that, say, our VPN or LAN addresses won't
 conflict with any of the arbitrarily-addressed host networks where the VPN
 endpoints reside, but we'd really rather have a routing scheme that 'will
 work' as opposed to something that 'might work'.


  That kind of logic is kind of exactly why they put constraints in place.
The idea is, does it need to be a routable address on the public internet.
It seems like the answer is no, it'd just be nice so I wouldn't have to
worry about conflicts.

  Thomas
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Re: Help: HOWTO buy IP address blocks from ARIN?

[Thomas Charron]

On Tue, Jan 13, 2015 at 1:46 PM, Matt Minuti matt.min...@gmail.com wrote:

 Aren't there IP blocks reserved for exactly this kind of VPN use?


  I've never seen reserved public IP ranges for this sort of thing.  There
are reserved block ranges for private networks, but if I understood the OP,
the point to reserve a public block of IP addresses, and use them as
private addresses, specifically to avoid IP subnet conflicts.

  Since the private IP ranges are free for all, it's very easy to be on a
private network, and try to VPN into your own network, and have a conflict
as the remote network uses the same private numbers as yours.

  If you understand, then I apologize, not trying to sound condescending
but it may come across that way if you already knew that and I was missing
a point.   :-)


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Re: Help: HOWTO buy IP address blocks from ARIN?

[Thomas Charron]

On Tue, Jan 13, 2015 at 2:45 PM, Joshua Judson Rosen roz...@hackerposse.com
 wrote:

  And what subnet would you put all of your fixed infrastructure on to
 guarantee
  that hosts coming in through all of those VPNs can actually route to
 it?
  And to each other?


  This sounds lame, and it kind of is, but the correct answer is, 'One
that's not what someone would normally use to minimize the likelyhood.

  Personally, I tend to use ones in the 10.110.120.0/24 or such ranges.  If
you use say, 192.168.0.0/24, then you need to find a new job.  :-P

  Note, that using public IP addresses for your situation would work from a
technical perspective.  But if none of the addresses are going to be
utilized for public internet use, I would be VERY surprised if they even
considered granting you the assignments.

  Thomas
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Re: Help: HOWTO buy IP address blocks from ARIN?

[Thomas Charron]

On Fri, Jan 9, 2015 at 4:29 PM, Lloyd Kvam pyt...@venix.com wrote:

 I had not realized that ARIN was still distributing addresses.  I had
 thought they had pretty much given them all out.


https://www.arin.net/resources/request/ipv4_countdown.html

  Thomas
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Linux Memory Fragmentation, ideas..

[Thomas Charron]

  Hello everyone,

  This is a very interesting road, so I'm calling out to see if anyone
might have idea on how to minimize an issue I am having on an embedded
imaging system.

  This device is performing an insane amount of image processing from two
firewire cameras.  We're talking on the order of ~120 fps.  Each of these
is being processed, and various image masks are saved to the local hard
drive, for later use, and are provided to the client side of the device via
an embedded web server within the analyzer software.

  What is happening is, once a minute, a new instance of the imagers is
launched.  These two imagers then connect to the firewire cameras, and go
to work.

  Over time, ~1-2 weeks, the imagers start to fail with at an increasing
rate, as the kernel starts to kill them as the firewire stack cannot
allocate enough DMA buffers to communicate with the cameras.  Note, there
is plenty of ram in DMA32, however, it is fragmented to the point that the
required contiguous 128k page areas are not available.  The system has tens
of thousands of 48k pages, however.

  A short term solution I have found is to simply request the kernel drop
all of it's caches on the floor.  This, in turn, frees up a LOT of memory,
and subsequently, allocs can function without an issue, until it occurs
again.

  I believe the issue is that the system is creation blions of little
files, and the I/O caching system is using unused ram, of which there is
plenty.  The caching, however, it breaking up large page areas into the 4
and 8k areas, fragmenting the RAM significantly.

  Is there possibly a way to limit Linux's caching system to prevent the
use of a portion of the DMA32 zone in its entirety?  Or perhaps block off
portions of the DMA32 zone for use only by firewire and/or DMA transfers?

  Kind of describing the issue out loud, wasn't sure if anyone had any good
ideas to minimize the issue.

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Re: Linux Memory Fragmentation, ideas..

[Thomas Charron]

  I have full viability.  :-)  I've been developing the whole thing for
several years.  We don't have direct access to the buffers, as they are
created by libdc1394, which in turn interfaces with the firewire_core
modules.

  We're in a bind because we're finding the issue now that we're collecting
clinical results running constantly for days at a time.

  We've slated the 'imager daemon' for future versions, which would solve
the issue.  For the short term I'm trying to find ways to make the existing
code function from an OS standpoint.

  Thomas

On Fri, Oct 10, 2014 at 5:00 PM, Bill Freeman ke1g...@gmail.com wrote:

 I don't know how much visibility into the code you have, but if I were
 designing from scratch, I would consider pre-allocating the buffers for the
 imagers, then have the new instances connect to these bufferes, rather than
 allocate them afresh.  This could likely be done with mmap, with the
 buffers locked in memory, and not backed by the swap file, if possible.
 Then the buffers are out of consideration for file system and page buffers,
 or things that lesser IO might allocate and drop.  If mmap doesn't support
 what you need (and I haven't looked at the capability of modern linux
 mmap), then a custom device driver should be able to allocate such buffers
 at boot time and map them.

 Bill

 On Fri, Oct 10, 2014 at 4:47 PM, Thomas Charron twaf...@gmail.com wrote:

   Hello everyone,

   This is a very interesting road, so I'm calling out to see if anyone
 might have idea on how to minimize an issue I am having on an embedded
 imaging system.

   This device is performing an insane amount of image processing from two
 firewire cameras.  We're talking on the order of ~120 fps.  Each of these
 is being processed, and various image masks are saved to the local hard
 drive, for later use, and are provided to the client side of the device via
 an embedded web server within the analyzer software.

   What is happening is, once a minute, a new instance of the imagers is
 launched.  These two imagers then connect to the firewire cameras, and go
 to work.

   Over time, ~1-2 weeks, the imagers start to fail with at an increasing
 rate, as the kernel starts to kill them as the firewire stack cannot
 allocate enough DMA buffers to communicate with the cameras.  Note, there
 is plenty of ram in DMA32, however, it is fragmented to the point that the
 required contiguous 128k page areas are not available.  The system has tens
 of thousands of 48k pages, however.

   A short term solution I have found is to simply request the kernel drop
 all of it's caches on the floor.  This, in turn, frees up a LOT of memory,
 and subsequently, allocs can function without an issue, until it occurs
 again.

   I believe the issue is that the system is creation blions of little
 files, and the I/O caching system is using unused ram, of which there is
 plenty.  The caching, however, it breaking up large page areas into the 4
 and 8k areas, fragmenting the RAM significantly.

   Is there possibly a way to limit Linux's caching system to prevent the
 use of a portion of the DMA32 zone in its entirety?  Or perhaps block off
 portions of the DMA32 zone for use only by firewire and/or DMA transfers?

   Kind of describing the issue out loud, wasn't sure if anyone had any
 good ideas to minimize the issue.

 --
 -- Thomas

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Re: Device Tree vs. Device drivers

[Thomas Charron]

On Fri, Jul 18, 2014 at 11:45 AM, Bruce Dawson j...@codemeta.com wrote:

 Does anyone have experience with device drivers and how they interact
 with the new Device Tree methodology?

 I've got a project using a BeagleBoneBlack and need to modify the serial
 driver (6530/16550A) for some *very* time critical applications. Plus, I
 haven't played with the serial driver (or many others) since Linux 0.92
 and 1.2.xx.

 Things have changed a lot, and I'm just looking for some
 guidance/mentor.


  I'm not sure you're going to get any speed improvements into the uart
drivers since Intel revamped them to handle DMA and the such..

  What kind of changes are you talking about?

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Re: Device Tree vs. Device drivers

[Thomas Charron]

On Fri, Jul 18, 2014 at 4:01 PM, Bruce Dawson j...@codemeta.com wrote:

 Thanks for replying Thomas!

 Basically, I need to store the time (to the sub-nanosecond) on the first
 serial interrupt. (Don't need it for every byte, just the first in a
 stream.)

 I'm not really interested in speeding up the UART code or serial
 transfer; I just need to know *exactly* when the first byte comes in (or
 goes out).


  Oh, in that case, it's much easier.  The UART drivers allow for 'sub
drivers'.

  I actually had an example I used for such a thing bookmarked:

http://www.cs.fsu.edu/~baker/devices/lxr/http/source/linux/drivers/serial/uartlite.c

  I don't know if you'll find it helpfull, but it's a functioning example
which is relatively strait forward.
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DHCPd providing dhclient information

[Thomas Charron]

 For not wanting to implement something on my own, does anyone know of a
way to configure dhcpd to provide DNS which was configured via dhcp to an
external address?

  I have a device which is going to have another system internal to it, and
will be doing NAT for that device, but would like to provide details to the
internal devices , which where discovered via dhclient (name servers, ntp
servers, etc).

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Re: Fifo buffer question

[Thomas Charron]

  Use the right tool for the job.  multilog is a utility which you pipe
your stdout/err to, and it maintains logs, including log rotation, etc..
So it can be spewing out all the time, but you can have say, 3 logs based
on 100k each.


On Thu, Feb 6, 2014 at 2:34 PM, Curt Howland howl...@priss.com wrote:

 Good afternoon.

 I have a background process running from which I would like, from time
 to time, to check the console output. I do not want to dedicate a
 console window to it, and since I start it from a script the console
 output is usually just lost to the akashic ethers.

 I've not played with fifo buffers, but I'm wondering. Could I start
 the process with   fifo-buffer.txt and then when I want to check
 the output, run a tail -f fifo-buffer.txt for a few minutes?

 Since this is not a usual background process with log rotation and
 such, I don't want to fill my disk with a text file dump. But it would
 be nice to check in and make sure it's running without killing it and
 restarting.

 Suggestions?

 --
 The secret of happiness is freedom,
 and the secret of freedom is courage.
 - Thucydides
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Re: SAS controller

[Thomas Charron]

On Mon, Jan 6, 2014 at 11:52 AM, Shawn O'Shea sh...@eth0.net wrote:


 +1 for LSI controllers. Dell has OEMed these for years and on their
 high-end desktops are moving from Dell PERC (special OEMed LSI)
 controllers to the straight LSI controllers.

 I have some of the 9211 cards installed in a bunch of servers:
 http://www.newegg.com/Product/Product.aspx?Item=N82E16816118114



  Depends on the LSI controller, and what OS release your running.  I found
LSI function and performance on 10.04 to be not all that great.  On my
current systems, I've removed all dedicated controllers and now go with
pure software raid.

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Re: SAS controller

[Thomas Charron]

On Mon, Jan 6, 2014 at 12:10 PM, Richard Kolb II richard.k...@gmail.comwrote:

 How about if I just want to hook one drive up long enough to copy data off
 of it?  Anything specific I should know?  I've seen some cards on ebay for
 under $50, and I like the idea of being able to use it for SATA afterwards,
 but I don't want to waste my cash.


  What card was in the system?  I have some spare backup controllers I can
loan you one.  They're the older MPT Fusion based cards.

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Re: SAS controller

[Thomas Charron]

On Mon, Jan 6, 2014 at 12:26 PM, Thomas Charron twaf...@gmail.com wrote:

 On Mon, Jan 6, 2014 at 12:10 PM, Richard Kolb II 
 richard.k...@gmail.comwrote:

 How about if I just want to hook one drive up long enough to copy data
 off of it?  Anything specific I should know?  I've seen some cards on ebay
 for under $50, and I like the idea of being able to use it for SATA
 afterwards, but I don't want to waste my cash.


   What card was in the system?  I have some spare backup controllers I can
 loan you one.  They're the older MPT Fusion based cards.


http://hwraid.le-vert.net/wiki/LSIFusionMPT#LSIFusionMPTSAS is the card I
have.

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Re: Crowdfunding an Ubuntu smartphone (right now)

[Thomas Charron]

On Tue, Jul 30, 2013 at 8:31 AM, Kenny Lussier kluss...@gmail.com wrote:
 But LTE is the data network, not the telephony network. VzW is still a
 CDMA network, ATT and T-Mo are still GSM, and Sprint is still
 PCS/GSM. So, unless the phone is data-only, and uses no telephony
 protocol, it needs to have a CDMA, TDMA, GSM/UMTS, or PCS radio.

  Not correct.  Most importantly, Sprint is CDMA.  All providers are
rolling out LTE.  VoLTE exists, and Verizon is pushing heavily to
moving to an all LTE network capability starting next year.

  And TDMA doesn't really exist in the US anymore.

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Re: Crowdfunding an Ubuntu smartphone (right now)

[Thomas Charron]

On Tue, Jul 30, 2013 at 3:24 PM, Kenny Lussier kluss...@gmail.com wrote:
 Sprint is a mix of both CDMA and PCS. In not sure what their Nextel phones
 are using these days.

 But the use of LTE has nothing to do with the telephony transport. There is
 also TD-LTE, but that is mostly APAC.

  Might want to tell the carriers that.

  
http://www.theverge.com/2013/6/27/4467742/verizon-turns-lte-service-500th-market-volte-2014

  And sprint is 100% CDMA, the PCS is over CDMA, and only in their PCS
frequency range.  It's KIND of a moot point.

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Re: *sigh* I guess I'm going mobile (Linux-compatible smartphones?)

[Thomas Charron]

On Fri, Jun 14, 2013 at 9:37 AM, Michael ODonnell
michael.odonn...@comcast.net wrote:
 OTOH, if by connect you mean use the phone as my computer's
 Internet connection (AKA tethering) that's a much more
 interesting - and usually expensive - matter.  I've been
 curious about Clearwire as a possible solution to mobile
 Internet - anybody have any experience with them?  The fact
 that they're going through a rather melodramatic acquisition
 battle involving Sprint and Dish Network makes me want to hang
 back until the dust settles, though...

  The coverage area sucks, badly.  My last phone was a used WiMax for
it's 4G.  Only spots of Manchester had any coverage, and coverage
which used to exist seems to have disappeared (I'm assuming due to
Sprint moving to LTE).

  I've since replaced my phone, so I can't actually go test specific locations.

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Re: Delayed mail from GNHLUG?

[Thomas Charron]

On Tue, Dec 11, 2012 at 10:11 AM, Roger H. Goun ro...@bcah.com wrote:

 Fortunately, the nerd points that Ben lost by committing an elementary
 sysadmin mistake he got back through the form of his apology.


  We all know that it's just a conspiracy, and the emails being held where
*actually* being reviewed by homeland security and the NSA.  X-D  Ben has
obviously been compromised.  What *really* happened is some low level
staffer meant to release gnhlug mail, and accidently crashed google.

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Re: sched_setscheduler(2)

[Thomas Charron]

ok good point I think you can disable some of the schedulers at compile
time..  I seem to remember seeing that option in there somewhere.
On Nov 9, 2012 9:05 AM, Kevin D. Clark kevin_d_cl...@comcast.net wrote:


 Can you send us the kernel .config that goes along with the kernel
 that you are running on your target machine?

 Regards,

 --kevin
 --
 alumni.unh.edu!kdc / http://kdc-blog.blogspot.com/
 GnuPG: D87F DAD6 0291 289C EB1E 781C 9BF8 A7D8 B280 F24E

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Re: sched_setscheduler(2)

[Thomas Charron]

On Thu, Nov 8, 2012 at 2:17 PM, Kevin D. Clark kevin_d_cl...@comcast.netwrote:


 Bruce Dawson writes:

  Does anyone have any experience with this system call?

 Can you give us some code with your exact setup for
 sched_setscheduler()?


  As a secondary note, the permitted message you are getting may not have
anything to do with permissions.  :-D  That's why the other information is
helpful.

  Thomas
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Re: sched_setscheduler(2)

[Thomas Charron]

  On  2.6.31-11-rt (Ubuntu 10.04 realtime kernel)

./a.out starting...
My original scheduling policy is SCHED_OTHER (0)
The original minimum scheduling priority is 0, the maximum is 0
sched_get_priority_max(1) returned 99
sched_get_priority_min(1) returned 1
My target scheduling policy is SCHED_FIFO (1)
The target minimum scheduling priority is 1, the maximum is 99
params.sched_priority now set to 98
It worked - now running in high-priority mode
params.sched_priority now set to 98
Now running at original scheduler policy
My scheduling policy is SCHED_OTHER
The minimum scheduling priority is 0, the maximum is 0



On Thu, Nov 8, 2012 at 4:19 PM, Kevin D. Clark kevin_d_cl...@comcast.netwrote:


 Strange.  I made a few minor changes (see attached patch)
 and when I run your code on my test machine running Linux kernel
 2.6.35 I get the following output:

   $ sudo ./latencytest
   ./latencytest starting...
   My original scheduling policy is SCHED_OTHER (0)
   The original minimum scheduling priority is 0, the maximum is 0
   sched_get_priority_max(1) returned 99
   sched_get_priority_min(1) returned 1
   My target scheduling policy is SCHED_FIFO (1)
   The target minimum scheduling priority is 1, the maximum is 99
   params.sched_priority now set to 98
   It worked - now running in high-priority mode
   params.sched_priority now set to 98
   Now running at original scheduler policy
   My scheduling policy is SCHED_OTHER
   The minimum scheduling priority is 0, the maximum is 0
   $

 We'll have to look deeper.  Of course, the first thing that comes to
 mind is that you are running a 3.x kernel, and I am not (yet).

 Regards,

 --kevin
 --
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Re: sched_setscheduler(2)

[Thomas Charron]

On Thu, Nov 8, 2012 at 5:54 PM, Thomas Charron twaf...@gmail.com wrote:

   On  2.6.31-11-rt (Ubuntu 10.04 realtime kernel)

 ./a.out starting...
 My original scheduling policy is SCHED_OTHER (0)
 The original minimum scheduling priority is 0, the maximum is 0
 sched_get_priority_max(1) returned 99
 sched_get_priority_min(1) returned 1
 My target scheduling policy is SCHED_FIFO (1)
 The target minimum scheduling priority is 1, the maximum is 99
 params.sched_priority now set to 98
 It worked - now running in high-priority mode
 params.sched_priority now set to 98
 Now running at original scheduler policy
 My scheduling policy is SCHED_OTHER
 The minimum scheduling priority is 0, the maximum is 0


  It should also be noted that my system has:

@video - rtprio 99
@video - memlock unlimited

  My user is in the video group.  You can probably guess what kind of
development I'm doing on this box.  X-D


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Re: grub issue

[Thomas Charron]

On Tue, Oct 23, 2012 at 12:07 PM, Ben Scott dragonh...@gmail.com wrote:
 On Tue, Oct 23, 2012 at 10:54 AM, Kevin D. Clark
 kevin_d_cl...@comcast.net wrote:
 4:  what happens when you type telinit 5?

   FYI, Debian and (IIRC) Ubuntu don't use runlevel 5 normally.  They
 normally boot to runlevel 2, and use a service to start/stop an X
 display manager.  So, I think the equivalent command would be:

 /etc/init.d/gdm start

   I could be wrong, this is from memory, and I haven't used Ubuntu in
 a while, either.  IIRC, Ubuntu replaced the standard SysV init with
 some new thing, and it may not even have initscripts anymore.

  Ubuntu migrated to upstart.  However, init scripts are still generally linked.

  sudo /ewtc/init.d/gdm restart

  This still works, but gives you a little nastygram saying you should
really be doing it via (several ways):

  sudo service gdm restart
  sudo restart gdm

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Re: Anyone want a Debian umbrella?

[Thomas Charron]

On Mon, Sep 3, 2012 at 8:05 AM, Jerry Feldman g...@blu.org wrote:
 My broither-in-law is an umbrella wholesaler http://www.umbrellaman.com.
 Not sure I can do any better as he normally deals with thousands of
 umbrellas. Also, who owns the Debian trademark. If he were to do it,
 he would have to get the proper authorization to use Debian.

  Logo is available for use.

http://www.debian.org/logos/index.en.html

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DHCP, Autoipd, fallbacks, fall (forward?)

[Thomas Charron]

  Quick question for everyone, in case they've encountered a situation
like this, or know dhclient and avahi.

  So, I have a system which comes up, and there is no DHCP server
available.  Link reverts to avahi-autoipd, which assigns a link local
address.

  Is there a way I can have the system, while USING the link local
address, occasionally TRY to do a DHCPDISCOVER, and if a server is
found, go ahead and reconfigure via DHCP?

  Basically, I have a bridge set up across 3 of my eth interfaces,
which are bridged together.  The bridge is configured to use dhcp:

auto networkbridge
iface networkbridge inet dhcp
bridge_ports console aux1 aux2
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp on

  The system is headless, and when no DHCP is found, reverting to link
local is fine.  The application running on the headless server uses
mDNS to broadcast.

  When the system is connected directly to the client PC (That's the
console interface in the above config), link local is fine, the
console also reverts to link local, as it also cannot get an address.
However I would like it if the bridge, upon somehow 'magically'
detecting it CAN get a DHCP server, go ahead and get one.  JmDNS (Java
based mDNS services, which are used within our java server) will
handle the notifications, and the console app can receive this
notification, and do what it wishes to do (reconfigure its interface).

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Re: Malware for Linux

[Thomas Charron]

On Mon, Jul 16, 2012 at 4:26 PM, Ben Scott dragonh...@gmail.com wrote:
 On Sat, Jul 14, 2012 at 2:34 AM, Joshua Judson Rosen
 roz...@geekspace.com wrote:
 
 http://article.gmane.org/gmane.org.user-groups.linux.gnhlug/19300/match=culture

 It's not obvious to me that anything's changed since then.

   Your idea that FOSS is inherently trustworthy is amusing.   :)  You
 may want to read Ken Thompson's 1984 paper on Trusting Trust:

  That conversation is awesome...

  I suppose it'd be great to mention how many times Linux boxes have
been compromised *BEFORE* a stable fix was released.  After a package
has been upgraded, you still have to deal with the compromise.

  At least the Windows malware developers are *mostly* idiots who can
be easily detected.  I haven't seen too many 'obvious' infections.
Many are hijacking the box and running something under a chroot
environment.

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Re: e-mail provider recommendations?

[Thomas Charron]

On Mon, Feb 20, 2012 at 11:32 PM, Joshua Judson Rosen
roz...@geekspace.com wrote:
 Dear GNHLUG,

 A couple of (non-technical) friends of mine have expressed
 a desire to move away from Google's services in response to
 the latest publicised privacy/security gaffe. The big question
 is where do I go from GMail?--I don't think I'm familiar enough
 with the options for me to be comfortable making a recommendation
 at this point..., and I'm wondering if maybe some of you can
 provide some insight.

  The biggest disclaimer to give is, *any* mail provider can
potentially be compromised.  My personal opinion is that the google
gaffe wasn't nearly as bad as some providers compromises.  It's a give
and take.  A smaller provider is a smaller target, but also less
likely to be monitoring security threats and adapting to them.

  Actually, there really wasn't, specifically, a security compromise
with google.  It simply allowed cookies to get thru when you didn't
want them to, but mostly do to Safari functionality, not google
specifically.

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ipv4ll fallback

[Thomas Charron]

  Is there any easy way to configure dhcp to fallback to a link local
address, should dhcp requests fail?

  I am currently configuring my network stack statically via
/etc/network/interfaces.  The application broadcasts via a built in
uPnP stack, so it can function if it doesn't have an IP address.  But
it's headless, so without the network, there's no way to reconfigure
it.

  The idea is, in a static IP environment, service would boot, detect
the link local address, which would allow them to ssh into the machine
and reconfigure it for a static address is needed.

  I could have it configured static by default, and as part of the
provisioning reconfigure it for dynamic.

  Really just wanted to see if someone had a 'just do this' idea.

auto lo
iface lo inet loopback

auto bridge
iface bridge inet dhcp
bridge_ports eth0 eth2 eth3
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp off

auto eth1
iface eth1 inet static
address 192.6.94.4
network 192.6.94.0
netmask 255.255.255.0n UIP
broadcast 192.6.94.255

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Re: ipv4ll fallback

[Thomas Charron]

On Mon, Feb 6, 2012 at 11:05 AM, Joshua Judson Rosen
roz...@geekspace.com wrote:
 Thomas Charron twaf...@gmail.com writes:

   Is there any easy way to configure dhcp to fallback to a link local
 address, should dhcp requests fail?

 I'm not sure to what extent this is a Debian vs. upstream thing,
 but the version of avahi-autoipd that Debiain 6.0 ships includes
 an `exit hook' script that it registers with the ISC DHCP client
 in order to do exactly that (it just installs the script
 as /etc/dhcp/dhclient-exit-hooks.d/zzz_avahi-autoipd):
 if dhclient fails to raise a lease, it invokes avahi-autoipd
 to get an IPv4LL address as a last resort.

  *WHAM*!  Thank you VERY much, that's exactly what I needed!
Developers had made changes to avahi, I just tested it, easy fix.

  This is why LUG's are so helpful.  :-D

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Re: SCP from STDIN: -t option undocumented?

[Thomas Charron]

Not sure about scp, but you could use:

ssh 192.168.1.2 cat  destFile

On Thu, Dec 22, 2011 at 4:25 PM, John Abreau j...@blu.org wrote:
 Long ago, I was looking for a way to make scp read from stdin, and I
 had no luck.

 Earlier this afternoon, when I was tweaking my validate-rsync script to add
 support for scp, I discovered that when running the command

 scp foo remote:/path/to/bar

  the remote end gets invoked as

 scp -t /path/to/bar

 It seems that the scp process on the local machine establishes an ssh
 connection
 to the remote machine, and then invokes an scp process on the remote machine,
 and that remote scp process has to read from stdin.
 When I checked the scp man page, there was no mention of the -t
 option, nor is it
 listed in scp --help. A google search for scp -t didn't locate any
 mention of
 the option, and another google search for scp from stdin yielded nothing but
 questions of how to do it followed by replies that scp cannot read
 from stdin.

 Is this documented anywhere? I don't understand why the option would be
 left out of the man page.

 --
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 Email j...@blu.org / WWW http://www.abreau.net / PGP-Key-ID 0xD5C7B5D9
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Windows 8, Bootloader Signing

[Thomas Charron]

  Interesting side effect of security.  I'm sure it's coincidence..

http://mjg59.dreamwidth.org/5552.html

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Re: MV.com is shutting down May 1st

[Thomas Charron]

On Wed, Apr 27, 2011 at 2:56 PM, Marc Nozell (m...@nozell.com)
noz...@gmail.com wrote:
 As a long time dialup and then DSL customer of MV, I'm sad to see them go.

  RIP mv for sure.  One of the very first providers in NH.  Prior to
them having POP's in NH, you had to pretty much rely on UUCP feeds
from DEC.

  Anyone have word on the Mallets?

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Re: MV.com is shutting down May 1st

[Thomas Charron]

On Wed, Apr 27, 2011 at 3:37 PM, Jonathan Linowes jonat...@linowes.com wrote:
 The end of an era.

 I signed up circa 1994, when all the Internet was in its infancy (had to 
 manually download and install mosaic, winsocks, dialup etc).

  And of course, 'download' back then meant, at least for me, FTP to
Mail interface via UUCP.  :-D

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Fri, Apr 8, 2011 at 9:02 AM, Jon 'maddog' Hall mad...@li.org wrote:
Why do many large organizations tend to resist FOSS?  Discuss.
 FUD...utilizing the true definitionof the unknown.

 Even today there are lots of people in IT management who started after
 the beginning of Microsoft and Appleand other systems companies
 who utilized closed source.  Buying a solution is all they know.

  But Jon, there's another aspect which is 'missing'.  His question
was a trick one.  One assumes that they actually DID 'resist'.  It
sounds to me like he just came out of the blue and 'dumped' a solution
using something unexpected.

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Fri, Apr 8, 2011 at 12:59 PM, Jon 'maddog' Hall mad...@li.org wrote:
 If everyone uses the same software in exactly the same way, then it is a
 commodity...but how to you get ahead of your competitor that way?

  But if someone innovates *ANY TIME THEY CAN* it does from
innovation, to being an oddity.  And not all companies who USE
software are IN the software buisness.  I make medical devices.
Should I take the tract of 'Let's make this as new and innovative as
possible', when the inovation we target are in the medical industry?
Do you honestly give a snot if the machine testing you for Cancer is
taking twice as long as it could if I'd implemented an innovating data
analysys algorithm?

  The world isn't only about software.  As a matter of fact, most of it isn't.

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Fri, Apr 8, 2011 at 1:10 PM, Thomas Charron twaf...@gmail.com wrote:
  But if someone innovates *ANY TIME THEY CAN* it does from
 innovation, to being an oddity.  And not all companies who USE

  does = goes.  :-D

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Fri, Apr 8, 2011 at 1:50 PM, Jon 'maddog' Hall mad...@li.org wrote:
 So, do you think I give a snot?  Sorry, I do.

  The answer doesn't scale.  That same 'problem' using a cluster years
ago can now be processed in *minutes* on a Xeon quad processor.  I'm
actually leading a product right now that would have been impractical
to do even 5 years ago, without requiring that kind of setup.  My way
of comparison is, for example, making a 30 second query take 1 second
instead.

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Fri, Apr 8, 2011 at 1:44 PM, Jon 'maddog' Hall mad...@li.org wrote:
 Thomas,
But to the original posters comments, the right solution isn't, by
default, 'FOSS'.
 I do not know what question you are trying to answer, perhaps
 op: You like to use a lot of Open Source Software don't
 you?  Don't you know it is not 'standard' here?

  How to answer that question.  The answer to, 'Why are you using it'
isn't.  'Well, it's FREE!  Don't you like free?  Why wouldn;t you like
free?'

  The answer is, I used this solution becouse I've found that by using
this tool, I can implement it faster.  And (insert language here)
provides many tools, such as CPAN, etc, allowing me to extend it
pretty quickly.  How would you have done it?  Let's compare notes.

How do list members respond to this line of questioning?

 But the question I am trying to answer, also from the original poster
 was:

Why do many large organizations tend to resist FOSS?  Discuss.

 Since the second question was the one right before his signature, that
 was the question I was trying to answer.

  But the title was, 'How to you answer the question'.  THAT is my
point.  They guys response had NOTHING to do with 'large organizations
resisting'.  One, 'We typically dont do it that way' turns into, 'I'M
BEING REPRESSED!'  It is a pet peeve of mine when people make the
assumption that your either WITH open source, or against it.

 Now, if he were to insist on the op supporting those non-standard
 tools, I could see an issue, as the op has to now balance two sets of
 tools to do the same thing.  But if he maintains his own tool set, then
 the op should not care what tools he uses.

  And this is back to my point.  The assumption of the original
question, as stated, was that there was some resistance, when the
conversation he quoted, depending on tone, could very well have been
used to enlighten, instead of a condesending, 'If your not in the IN
crowd, your obviously an idiot'.

Which 99.99% of users *never do*.
 Perhaps not, but their VARs and integrators might change it before it
 gets to the end user.  On the other hand:
 100% of closed-source users can NEVER change the source code.

  Which means that it's only *really* a problem for 1 out of every 10,000 users.

 Unless the contractor could convince me, the owner, that the end product
 was more efficient for me, which in the case of this house he probably
 could not, than I would fire that contractor.

  More then likely, that contractor, in this case, had gone ahead and
done it that way, as you didn't tell him not to.  So I guess your
basically saying Bruce should be fired.  :-D  (Yes, that was tounge in
cheek).

The use of FOSS doesn't resolve that issue.
 No, but it ties back to the issue that I chose to answer.

  And the crux is, there where actually two questions.  The first was
from the other person, the second, from Bruce.  I feel there is a
disconnect between the two, and that the second question is jumping to
a conclusion.  Remember, Bruce actually said he was besides himself,
and annoyed by the mere inference of the question.

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Fri, Apr 8, 2011 at 2:08 PM, Jon 'maddog' Hall mad...@li.org wrote:
The answer doesn't scale.
 Sorry, it scaled with the information you gave me.

  John, *you* provided the information that everyone should always be
trying to inovate.  If I misunderstood your point, my bad.  My point
is, when I have a junior engineer writing the database backend using
Java, I'm going to ask that he uses JDBC, and not some 'new, open
sourced NoSQL database engine'.  Because I don't have a requirement
that cannot be met with the tools at hand.  And yes, I have that exact
situation, and it annoys them to no end that it's using Derby, and not
MS SQL Server embedded.

 o First of all, I am talking about 1995...so that was about sixteen
 years ago.  Even if one woman's life was saved in those sixteen years,
 it was worth it in my book.

  And *that* innovation was worth it.  The point is, writing something
in perl to parse some data as opposed to C# is *NOT INNOVATIVE*.

 o Secondly, part of the problem was to decompose the program, which
 allows it to run well on your quad-core Xeon

 You asked a question, I gave an answer.

  The question is, do you want something which is straitforward
implemented a billion different ways for no other reason then to have
everyone have a different solution.

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Re: [FOSS] How does one respond to this line of questioning?

[Thomas Charron]

On Thu, Apr 7, 2011 at 9:26 PM, Bruce Labitt
bruce.lab...@myfairpoint.net wrote:
 Had an interesting conversation this evening.  A snipped
 version basically was:

 op: You like to use a lot of Open Source Software don't
 you?  Don't you know it is not 'standard' here?

 me: Hmm.  What part of free, efficient and fast don't you
 care for?

 op: (no answer)

 How do list members respond to this line of questioning?
 (Yes the conversation went on, but it was merely an
 unfruitful elaboration of my answer.)

  Well, that guy walked away thinking you where a prick, if you really
put it in THAT language.  :-D

  Open Source is 'different'  It isn't better in any way that can be
definitively proven.  If it finds that you are able to do things
faster and easier, then great.  Help it make inroads to MAKE it
included as a standard.

 I don't need to be sold on FOSS.  In general, I find FOSS to
 be incredibly useful.  I use it whenever I can.  It isn't
 always *the best* solution, but most (nearly all) times it
 is more than good enough.  (If appropriate, I make an
 attempt to help the 'community'.)

 Why do many large organizations tend to resist FOSS?  Discuss.

  Honestly, the largest reason is attitude of the users.  People using
OSS software 'outside the bounds' tend to leave software behind that
others have to figure out how it works.  A Visual Studio monkey can
generally pick up any other monkeys stuff, and get up to speed on it.

  A perl guy walking into an environment where the guy liked Python,
who took over from a guy who liked bash scripts..  Weeel.
It doesn't go over to well.

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VoltDB?

[Thomas Charron]

  Anyone looked at this yet?

http://voltdb.com/

  Just wondering if it's worth the time.  I'm really veering away from
MySQL due to Oracle, and it seems so shiny and new.  :-D

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Re: Computer hardware for sale, cheap

[Thomas Charron]

On Fri, Jan 28, 2011 at 11:10 AM, Ed Robbins e...@erobbins.com wrote:
 We started bumping into this over the Christmas break.  We streamed
 Netflix everyday, all day long and I was surprised to see how much
 bandwidth we where chewing through.  The kicker was the snow days that
 lasted into the beginning of January, in one week we used up 30% of the
 250gb cap.  Knowing that I want to get rid of cable TV and seeing the
 writing on the wall, I switched over to Comcast business class, which
 doesn't have a bandwidth limit.

  At maximum quality, which the server defaults to, Netflix streams at
4.8Mbps, which would lead to 2.1 gigs per hour of streamed content.
I'm not sure where the 'bottom' is, the 4.8 is the starting point for
'max quality', and they downshift based on how much data they can
actually get to you fast.

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Re: Computer hardware for sale, cheap

[Thomas Charron]

On Fri, Jan 28, 2011 at 11:30 AM, Mark Komarinski mkomarin...@wayga.org wrote:
 4800kbps (4.8MB) is the max for HD on Netflix.  No US ISP can sustain that.

 http://techblog.netflix.com/2011/01/netflix-performance-on-top-isp-networks.html

  Those are aggregate averages, disregarding variations based on
service.  This offsets fiber connects fast speeds by also including
DSL slower speeds.

  I was curious what my Netflix streams in at, and it approaches the
4.8Mbps.  Average was right around 4.0 for an hour and a half movie on
fiber.

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Re: Computer hardware for sale, cheap

[Thomas Charron]

  My response to any company which doesn't want to do business with me
 is to give them what they want.

  I don't need TV to survive.

  I don't need internet to survive either.  :-D  But we digress.

  Their lack of ability to stream live baseball games lies with the
problems with broadcast TV exclusivity contracts.

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Re: Computer hardware for sale, cheap

[Thomas Charron]

On Wed, Jan 26, 2011 at 2:11 PM, Benjamin Scott dragonh...@gmail.com wrote:
  Mythbusters I have to go to the Discovery website to watch.

  I have to go to a friend's or a sports bar to catch the Pats games
 now.  I can live with that.

  I'm in the same boat, no cable, all internet based.  I was planning
on subscribing to MLB.TV, which is available for the PS3, to be able
top watch Red Sox games this year.  Come to find out, they black out
local games, aka, I can't ever watch a Red Sox game using MLB.TV.  :-(

  Kind of annoyed in order to watch any of them, I need to get
something which has NESN.  :-(

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Re: Looking for a tool for spreadsheet manipulation.

[Thomas Charron]

On Wed, Jan 19, 2011 at 11:06 AM, Steven W. Orr ste...@syslang.net wrote:
 Sometimes I get lucky here. ;-)

 I have this horrible spreadsheet that needs to be accessed by lots of people
 from all over the galaxy. Adding entries to the spreadsheet is painful because
 it's manual.

 What I'd like to do is to use a command line interface to add entries to cells
 instead of having to use Excel. Does such a beast exist?

 I'm thinking of some sort of a command that either takes command args or a
 configuration file to accomplish what I want. For example:

  Doing it with Perl on a Windows system is *superduper* cake.

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Re: Looking for a tool for spreadsheet manipulation.

[Thomas Charron]

On Wed, Jan 19, 2011 at 4:00 PM, Thomas Charron twaf...@gmail.com wrote:
 On Wed, Jan 19, 2011 at 11:06 AM, Steven W. Orr ste...@syslang.net wrote:
 Sometimes I get lucky here. ;-)

 I have this horrible spreadsheet that needs to be accessed by lots of people
 from all over the galaxy. Adding entries to the spreadsheet is painful 
 because
 it's manual.

 What I'd like to do is to use a command line interface to add entries to 
 cells
 instead of having to use Excel. Does such a beast exist?

 I'm thinking of some sort of a command that either takes command args or a
 configuration file to accomplish what I want. For example:

  Doing it with Perl on a Windows system is *superduper* cake.

  I'm in a meeting, but a quick example search of the OLE interfaces I
came across:

http://www.ngbdigital.com/perl_ole_excel.html

  This is exactly how I've been using it when automating some robotics
tests where the 'test log' was stored in an Excel spreadsheet.

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Re: Looking for a tool for spreadsheet manipulation.

[Thomas Charron]

On Wed, Jan 19, 2011 at 2:13 PM, David Berube
djber...@berubeconsulting.com wrote:
 Alternatively, instead of editing the document, you could edit a CSV
 text file, tab delimited text file, or database table and then generate
 your XLS/google doc document from that - which is likely your most
 flexible approach, and still preserves your ability to have your
 preferred output format.

  It should be noted that an xls file *CAN* simply be a csv file.
Honest to god, try it.  Handles equations in the cells and everything.
 Used it many times for the quick and dirty '*.XLS Output'.  The users
never know the difference.  :-D

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Re: Touch-screens that work with Xorg/Linux? (was: Android PMPs)

[Thomas Charron]

On Fri, Sep 10, 2010 at 10:30 AM, Joshua Judson Rosen
roz...@geekspace.com wrote:
 Is anyone here familiar with using off-the-shelf touchscreens,
 and able to make a recommendation as what particular devices are
 most straight-forward to get working?

  I have recent experience with elo brand touch screens.  With a base
Kubuntu installed, it 'just worked' without requiring any work on my
part.  X.org has a specific driver for elo touch panels.

  I specifically used http://www.elotouch.com/Products/LCDs/1528L/default.asp

  They also sell a model which is a stand alone unit, with the
computer in the base, however, I have not used one of them.

  http://www.elotouch.com/Products/Computers/1520/default.asp

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Re: Widget to manipulate parallel port signals ?

[Thomas Charron]

On Wed, Sep 8, 2010 at 4:26 PM, Bill Sconce sco...@in-spec-inc.com wrote:
 On Wed, 08 Sep 2010 15:25:07 -0400
 Michael ODonnell michael.odonn...@comcast.net wrote:
 Anybody know of a (commandline or GUI) utility that I could use to
 wiggle/sense the individual data/control lines of a parallel port?
 I'd prefer that it operate using one of the standard drivers (like
 parport_pc) via ioctls rather than poking around directly in I/O
 or memory space at hardcoded addresses as I'd hope it'd be flexible
 enough to work with either an integral legacy device or an add-in
 device connected via PCI, USB, etc.
 One possibility might be pyparallel. (I haven't used it, but I have
 used its sibling pyserial and found it very useful, and very usable.)

  I have used http://www.epanorama.net/circuits/portcontrol/portcontrol.c
when I was doing some playing, and wanted to toggle some of them.

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Re: Quarantining an account from the Internet, or from all networking?

[Thomas Charron]

  iptables can do it.

  One of the options is --uid-owner or even --gid-owner

  Thomas

On Mon, Aug 16, 2010 at 4:56 PM, Bill Sconce sco...@in-spec-inc.com wrote:
 Does anyone know of a way to prevent a Linux account from accessing
 the Internet?

 E.g., setting a [per-user] gateway to nil, or setting permissions
 on some node along the path to eth0?

 It's acceptable to be crude, to prevent such an account from
 using any network services whatsoever.

 I can see how to do it brute-forcefully, by wrapping each focus
 into such a user's process [window] with a script which invokes
 ifdown eth0, and invokes ifup eth0 on the way back out. But
 that's ugly; something like a permissions-based approach would
 be much more Linux-like.

 (The intention is to quarantine a very-untrusted application,
 for example a program which runs Flash, or any program which
 displays PDFs, or any other blobs-downloaded-from-the-'net.
 Adobe Reader(tm), I'm talking to you.)

 It all has to do with a talk I should do someday, and which has
 gotten a fresh kick from Eben Moglen's talk at LinuxCon...

 Many thanks!

 -Bill
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Re: Quarantining an account from the Internet, or from all networking?

[Thomas Charron]

  Examples:

http://www.cyberciti.biz/tips/block-outgoing-network-access-for-a-single-user-from-my-server-using-iptables.html

On Mon, Aug 16, 2010 at 5:12 PM, Thomas Charron twaf...@gmail.com wrote:
  iptables can do it.

  One of the options is --uid-owner or even --gid-owner

  Thomas

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Re: Quarantining an account from the Internet, or from all networking?

[Thomas Charron]

On Mon, Aug 16, 2010 at 6:47 PM, Benjamin Scott dragonh...@gmail.com wrote:
 On Mon, Aug 16, 2010 at 6:30 PM, Michael ODonnell
 michael.odonn...@comcast.net wrote:
 There's no notion of UID associated with
 an IP packet so once it's in transit it's not straightforward
 to know who owns it ...

  I've never looked into this, so I don't know if/how it works, but if
 NetFilter is smart enough to look at who owns the associated socket,
 it should work.  Packets don't have owners, true, but a packet without
 a socket is rather like the sound of one hand clapping...

  Internally, packets do have owners.  Specifically, the application.
When using iptables, it filters based on the app which is trying to
generate it, and the uid and gid that it is running under.

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Commercial Distributions

[Thomas Charron]

  Does anyone have any experience with providing a Linux distribution for a
Kiosk sort of device?  Thus far, our internal development has been on Ubuntu
with a commercial Qt license, however at this stage we need to start looking
at this device being 'manufacturable', which means looking at things such as
support agreements, etc.

  Specifically, I would like to have the capability to say, easily create a
custom installation disk with minimumal 'roll your own'.  Yes, I know how to
create a Ubuntu installer with a fixed set of packages.  But I'd really like
to have tools available which are supported and tested.

  I'm really suprised I've never seen a 'KioskOS'.

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Re: [OT] Postal services (was: better Internet)

[Thomas Charron]

On Wed, Apr 7, 2010 at 4:12 PM, Benjamin Scott dragonh...@gmail.com wrote:

 On Wed, Apr 7, 2010 at 12:39 PM, Michael ODonnell
 michael.odonn...@comcast.net wrote:
  Be federal law, anyone competing with the USPS must charge 3x what
  their charging, no exceptions.
  I can't find anything on the Intertubes to support that assertion
  and it has a very Snopes-worthy whiff about it.  Can you substantiate?
  As I mentioned, I can't speak to that particular claim, but the
 following sections of the US Code (Federal law) do appear to enact
 things along those lines:


  I only recall the ballparks from UPS years ago.  It may very well be not
exactly 3x for everything.  We where well aware of this, however, as when
the USPS raised rates, the shipping systems would require new shipping rates
to be loaded, as these changes would require that UPS would raise it's base
rates for shipping.


 Title 39, Section 601, Letters carried out of the mail

 http://www.law.cornell.edu/uscode/html/uscode39/usc_sec_39_0601000-.html
 A letter may also be carried out of the mails when ... the amount
 paid for the private carriage of the letter is at least the amount
 equal to 6 times the rate then currently charged for the 1st ounce of
 a single-piece first class letter ... [exceptions are specified]


  This i part of the basis, however you've looked up more then I have
regarding the evidence that this is actually the case.



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Re: [OT] Postal services (was: better Internet)

[Thomas Charron]

On Thu, Apr 8, 2010 at 11:23 AM, Jeffry Smith jsm...@alum.mit.edu wrote:

   The USPS *does* receive subsidies -- some Federal tax dollars go to
  support it (or did, last I knew).  That's something else entirely.
 
 Not for years  - that's one of their problems in that they have to
 both deliver anywhere and avoid a debt (not necessarily make a
 profit).

   This is untrue.  They place the subsidy in the form of appropriations.
Specifically, the Federal government 'buys' a part of the USPS every year.
Recently, this is specifically why the USPS didn't stop delivery of mail of
Saturdays, as they had planned to.  A simple search for 'appropriations' and
USPS will find tens of thousands of references to appropriations bills for
every year.  750 million to buy new trucks is a subsidy if you ask me.



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Re: [OT] Postal services (was: better Internet)

[Thomas Charron]

On Wed, Apr 7, 2010 at 12:14 PM, Tom Buskey t...@buskey.name wrote:


 The USPS delivers a letter from here to CA for under 50 cents.  You
 couldn't hire someone to lick the stamp for that.


  No, they don't.  They subsidize the entire process by balancing all
charges.

  There's another catch.  Be federal law, anyone competing with the USPS
must charge 3x what their charging, no exceptions.

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Re: another reason to use adblock and noscript... or just use Linux

[Thomas Charron]

On Wed, Mar 24, 2010 at 4:51 PM, Derek Atkins warl...@mit.edu wrote:

 Given a standard-configuration fully-updated Windows box and compare it
 to a standard-configuration fully-updated Linux box..  The windows
 machine has significantly more holes in it during standard use.


  That is false assumption which only makes one *feel* more secure.  I would
give you that generally windows machines have more holes that allow someone
to *crash* the machine, however most *nix exploits which are remote
vulnerabilities will end up easily giving you a shell.

  Additionally, as time goes on, I've found that older installations of a
given distributions will pretty close to 100% get compromised if left
unattended.

  Linux is NOT more secure then Windows.  People RUNNING Linux are
*generally* more security conscious then a person running Windows.

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Git Help

[Thomas Charron]

  As a git newb, I've got a couple of questions about git which
confuse me.  Any git users who might be able to explain?

  If I'm in a directory and have made local modifications, and then I
issue a git branch, what does the branch contain a copy of if I check
it out?  The latest head?  Or does the branch branch whatever I'm
working on to a new branch, which contains a copy of the state of the
original branch?

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Re: Git Help

[Thomas Charron]

On Wed, Mar 10, 2010 at 11:46 AM, Coleman Kane ck...@colemankane.org wrote:
 Do't use 'git branch' any more for creating new branches, instead use
 'git checkout'.

  Actually, I already knew that one, I was separating the logic in
case it confused things.  :-D

 From your description, I think I know what you are looking for. Consider
 the following example where you edit the file 'test.c' and want to
 commit those changes to a new branch named 'branch-2' rather than the
 current branch ('master').

  And if my current branch is 'tom', with edited files, and I issue a
git checkout -b tom2, then tom2 will now be a copy of tom, PLUS the
edited file?

 Beware the HOWTO's out there, as the above sequence is the 'new way' of
 doing this in git. The old way actually used 'git branch' for all the
 branching operations and was more clumsy. This change happened within
 the past two years.

  I gave up on the HOWTO's and just dove in.  :-D  Now I'm using git
to allow an application which has a single configuration directory,
~/.skeinforge, to have multiple configuration by using a git wrapper
which uses git branches as 'profiles'.

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Re: Google Wave?

[Thomas Charron]

On Mon, Mar 8, 2010 at 8:35 PM, Jon 'maddog' Hall mad...@li.org wrote:
 I have had a Google Wave account for some time through a company that I
 work with.

 I have found it almost useless, since it does not interact well with
 regular email, and since you have to be online to really use it.

 Also, unlike some other Google products that had useful real
 functionality even in the never-ending Beta, Google Wave felt more
 like Alpha material, and Alpha material that never really got less
 Alpha over the six months I tried to use it...while it was in Limited
 preview...whatever that is.

  We've got like, 6 of us in the same wave.  It's..  My brain hurts...

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Re: Interesting article, games

[Thomas Charron]

On Fri, Mar 5, 2010 at 9:52 AM, Benjamin Scott dragonh...@gmail.com wrote:
 You mean Android right?  Droid is one model of phone using the Android
 platform.
  Yes and no, because...
 I've read of fragmentation in the Android market.
  Exactly.  Droid seems like the first Android phone that's getting
 marketing budget, mainstream attention and adoption, and also has an
 impressive feature set.  While widespread use of Android as a generic
 phone engine might be good for Linux tech, it's not going to help the
 desktop market much because it's not going to be attracting
 application programmers.  But if Droid gathers the kind of developer
 ecosystem that iPhone has, *that* might be a gateway drug for the
 Linux desktop.

  Except for the fact that Andriod is pretty much all written in Java.
 :-D  And doesn't use X.  And must be run in a VM which isn't the Java
VM.

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Re: Interesting article, games

[Thomas Charron]

On Fri, Mar 5, 2010 at 12:31 PM, Benjamin Scott dragonh...@gmail.com wrote:
 On Fri, Mar 5, 2010 at 11:18 AM, Thomas Charron twaf...@gmail.com wrote:
  Except for the fact that Andriod is pretty much all written in Java.
  :-D  And doesn't use X.  And must be run in a VM which isn't the Java
 VM.
  Oh.  I didn't know that.  I don't have much interest in mobile phone
 development; I just keep seeing *nix people going on and on (and on
 and on and on) about Android.  I foolishly ASSumed it had something to
 do with *nix.

  When I jumped in and started writing apps, I was really disappointed
I couldn't just compile and run them natively.  It's all open, don't
get me wrong.  But there's a whole slew of
custom-google-glue-and-tweaks, which was disappointing.

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Re: Interesting article,

[Thomas Charron]

On Thu, Mar 4, 2010 at 11:04 AM, Chris fj1...@gmail.com wrote:
 I don't agree with all of it, but it does put a few things in perspective.
 http://blogs.zdnet.com/hardware/?p=7532tag=nl.e539
 Chris

  It's hard to say you don't agree with other users observations.
Note, he's not the one the statements are coming from.  He's just
repeating them back.

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Re: Interesting article,

[Thomas Charron]

On Thu, Mar 4, 2010 at 11:43 AM, Brian Chabot br...@datasquire.net wrote:
 I do not agree with the author of the article either.

 His arguments seem only based on a limited experience of what Linux has
 to offer.

  They aren't his arguments.

  So, what I’ve done here is gone through the Linux-related emails
I’ve received over the past few months and distilled the feedback down
into the most common reasons why people end up feeling that Linux
sucks.

  Those are the people who have picked it up, tried to use it, and
send emails stating that they, the end users, think it sucks.  :-D

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New Toys

[Thomas Charron]

  So, we're in the process of building a Makerbot Cupcake solid model
printer at the house.  http://makerbot.com/

  Would there be any interest in a presentation at one of the lug meetings?

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Re: New Toys

[Thomas Charron]

On Tue, Mar 2, 2010 at 11:02 AM, Jon 'maddog' Hall mad...@li.org wrote:
 After you use it to create the next generation Cupcake, can I have
 this one?

  :-D  If only it was that easy.  We got the Makerbot specifically to
make a Mendel RepRap, however, it should be noted that it takes a
Cupcake roughly 100 hours of constant printing to print out the parts
for a Mendel, and you still need to buy the electronics and the such.

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Re: Hacker spaces?

[Thomas Charron]

  The Sommerville one is the closest I know of.

On Tue, Mar 2, 2010 at 10:49 AM, Tom Buskey t...@buskey.name wrote:
 Continuing on the Makebot toy thing, are there any hacker spaces near the NH
 border?

 There's one in Sommerville, about an hour south.  I'd like to find one
 closer to the in the Lowell area.

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Re: Multiple X Terminals, One Box

[Thomas Charron]

On Mon, Mar 1, 2010 at 1:50 PM, Ben Eisenbraun b...@klatsch.org wrote:
 Hi Thomas,
 There used to be a few hacks floating around for doing something like this.
 I played with this one many years ago:
 http://cambuca.ldhs.cetuc.puc-rio.br/multiuser/

  That's the one I was familiar with.

 but I think Multiseat X is the current favorite:
 http://www.x.org/wiki/Development/Documentation/Multiseat
 It's supported in the main X.org codebase, and that page links a bunch of
 howtos, etc.

  Yup, that's exactly what I was looking for.  :-D  Now to do some reading.

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Silly DNS question

[Thomas Charron]

  Is an _ allowed in a DNS name?

  I didn't think so, and my home DNS proxy doesn't think so, but other
networks seem fine with it.

http://www.thingiverse.com/image:8662

  Above is an example, where the image is stored by amazon at
http://thingiverse_beta.s3.amazonaws.com/renders/fe/2a/15/49/75/0.5mm_single_wall_calibration_piece_display_medium.jpg

  I sent Makerbot an email about the use of the _, but I just wanted
to make sure I wasn't wrong that _'s in a domain name aren't allowed,
as their reserved for special use.

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Re: Silly DNS question

[Thomas Charron]

On Fri, Jan 22, 2010 at 1:39 PM, Ben Scott dragonh...@gmail.com wrote:
  That would generally be considered non-compliant with the
 requirements for Internet hosts, even though DNS can handle it.  Some
 software attempts to enforce the former despite the later.  It's a
 matter of opinion who is right.

  Interesting.  My nameserver at home ends up telling me to bugger
off.  :-D  Not sure which one, either our DNS forwarder, or the TDS
nameservers.  Will have to take a look.

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Re: The MySQL petition

[Thomas Charron]

On Wed, Jan 6, 2010 at 1:38 PM, Jeffry Smith jsm...@alum.mit.edu wrote:
 Seems that no one else does either.  Amazing how Red Hat can get all
 those folks to contribute, but MySQL can't.  Oh, right - Red Hat GPLs
 their code, and doesn't (as far as I know) require you to assign
 copyright to them.  Amazing how people respond when they feel they're
 being treated fairly.

  Woah there nelly.  RedHat was just as bad in some cases.  Take a
look at the eCos situation from several years ago, specifically, the
'Red Hat eCos Public License'.

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Re: [semi-OT] alternatives to FairPoint in Nashua?

[Thomas Charron]

On Sun, Dec 6, 2009 at 9:39 PM, Peter Dobratz pe...@dobratz.us wrote:
 Are there any alternatives to FairPoint for internet + phone line in
 Nashua?  We're far enough away from Main Street to miss out on the
 free Wi-Fi.

  Too bad TDS doesn't serve Nashua.  Kinda funny that out here in the
stick, we can get awesome support from the former Wilton telephone
company.  :-D

  *waves to Bill Sconce*

  :-D

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Re: Fairpoint files for Chapter 11

[Thomas Charron]

On Wed, Oct 28, 2009 at 2:53 PM, Ben Scott dragonh...@gmail.com wrote:
  Well, there were official documents submitted by the Maine Office of
 the Consumer Advocate that claimed FairPoint did not have anywhere
 near the capital backing needed to both buy the northern New England
 PSTN *and* sustain operations.  They had moderately detailed numbers
 and projections.

  In other words: The PUC was told this would happen, but did it anyway.

  I think they had lots of data, presented by MANY people who where
against the approval.  I'm just glad I have TDS in Lyndeborough.  :-D
My in the middle of the woods 6Mb DSL kicks arse.  :-D

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Re: Fairpoint files for Chapter 11

[Thomas Charron]

On Tue, Oct 27, 2009 at 6:29 PM, Dan Miller rambi@gmail.com wrote:
 Needless to say, I am not surprised:

 http://www.nashuatelegraph.com/apps/pbcs.dll/article?AID=/20091027/NEWS01/910279998/-1/OPINION01

 My personal opinion is this would be a good time for Verizon to come in
 and buy back the lines. They will get it cheaper than what they sold it for.

 It would be a win-win for Verizon. No cost of rolling out fiber for a
 year, receive thousands of dollars from a sell-buy of landlines in New
 England. And don't forget more customers.

  Fairpoint didn't roll out any fiber I don't believe.  They just
rolled stuff out using where Verizon had already rolled it out to the
poles I'm pretty sure.

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Re: Reverse pointer axes?

[Thomas Charron]

On Mon, Oct 26, 2009 at 3:47 PM, Ken D'Ambrosio k...@jots.org wrote:
 Hey, all.  I've got a daughter in college -- she's up in Burlington, VT.
 I've also got a daughter who's not yet in kindergarten.  Needless to say,
 a three-hour car trip with a young 'un can be fairly long (and then back
 again).  Our minivan ha(s|d) a DVD player -- but it's b0rken.  (Probably
 an alignment issue, methinks.)  Anyway, I'm seriously contemplating taking
 a $250 netbook and mounting it upside-down.  Ubuntu has an upside-down
 option for its video, so that's no problem.  But not so much the trackpad.
  Does anyone know of a way to invert the axes for a pointing device?  I've
 Googled a fair bit, but the only thing I found even kinda-sorta close was
 ways to modify one specific track pad driver/kernel module to rotate one
 axis.  If there's a generic X-windows mechanism, that would certainly be
 far more handy.

  Options InvX and InvY.  I had to mess with these once for an LCD
that was mounted statically upside down on one of our instruments.
You could also use AngleOffset to change the 'normal'.

  Thomas

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Linux Android Phone coming to Verizon

[Thomas Charron]

Anyone heard anything much about this 'Droid' phone?

It's being toated as an open phone, but..  It's from Verizon.  Kinda
makes me wonder.

http://phandroid.com/motorola-droid/

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Re: Wayback Machine(s)

[Thomas Charron]

On Thu, Oct 8, 2009 at 9:42 AM,  bruce.lab...@autoliv.com wrote:
 I've been trying to track down a download of psockets that was hosted
 somewhere on the University of Illinois Chicago website(s).  I used the
 wayback machine to try it.  I got to the page with the download link - but
 the link itself was broken.

  I *think* I found something simular.

  Found the link in http://www.cesnet.cz/doc/techzpravy/2006/psock/#psockets

  They also make reference to the psockets C++ library, but I can't
find that one.

http://www.ces.net/project/qosip/

  There is a link to download their stuff there.

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Re: macro question

[Thomas Charron]

On Thu, Oct 8, 2009 at 9:36 AM,  bruce.lab...@autoliv.com wrote:
 In a file system_file_ops.c that is in the psocket library there is the
 statement

 #define wrap(f) wrap_#f

 I think this is supposed to do
 wrap(read)(  )  == wrap_read(  )

 Are there circumstances when this does not work?  C89, C99, ???

  Isn't it supposed to be double #?

#define wrap(f) wrap_##f


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Re: macro question

[Thomas Charron]

On Thu, Oct 8, 2009 at 1:26 PM, Thomas Charron twaf...@gmail.com wrote:
 On Thu, Oct 8, 2009 at 9:36 AM,  bruce.lab...@autoliv.com wrote:
 In a file system_file_ops.c that is in the psocket library there is the
 statement
 #define wrap(f) wrap_#f
 I think this is supposed to do
 wrap(read)(  )  == wrap_read(  )
 Are there circumstances when this does not work?  C89, C99, ???
  Isn't it supposed to be double #?
 #define wrap(f) wrap_##f

  Confirmed:

The single '#' character means Stringify the following value - a.k.a
to put in double-quotes.
The double '##' characters means to Token-join.

Example File 1:
#define wrap(f) wrap_#f
wrap(read)
Preprocessed output (gcc -E testfile.c)
wrap_ read

Example File 2:
#define wrap(f) wrap_##f
wrap(read)
Preprocessed output (gcc -E testfile.c)
wrap_read

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Re: How can I retrieve the mount count for an ext3 volume?

[Thomas Charron]

On Tue, Oct 6, 2009 at 8:35 AM, Alex Hewitt hewitt_t...@comcast.net wrote:
 My Ubuntu 8.10 system uses EXT3 for the root filesystem and will
 automatically fschk the volume every 35 mounts.  I haven't been able to
 find out where the mount count is stored or how that data can be
 retrieved. I don't want to change the automated fschk but I'd like to
 display the count so I can anticipate when the volume will be checked.

  It really suprised me that I couldn't find this information in the
/proc fs anywhere.
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Re: How can I retrieve the mount count for an ext3 volume?

[Thomas Charron]

On Tue, Oct 6, 2009 at 10:42 AM, Ben Scott dragonh...@gmail.com wrote:
 On Tue, Oct 6, 2009 at 10:31 AM, Thomas Charron twaf...@gmail.com wrote:
  It really suprised me that I couldn't find this information in the
 /proc fs anywhere.
  What do you think this is, MS Windows?  :)  We've got a perfectly
 servicable tool (dumpe2fs) that will tell us the information.  Why do
 we need a kernel API for it?  :)

  Just seems like something they'd have under thar.

  Aside: On non-Linux systems, /proc is usually *just* process info.
 Linux extended it to contain miscellaneous system info, e.g., CPU and
 memory.  Then later networking info.  Then disk info.  Then ways to
 *change* that stuff.  Then a web browser.  Er, maybe not that last.
 But /proc on Linux definitely suffers from creeping featurism.  :)

  I always call it /proc, but I'd really expect it to be in /sys.

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Re: Re: How Apple makes more profit on their systems...

[Thomas Charron]

On Sun, Oct 4, 2009 at 11:16 AM, Joseph ma...@yahoo.com wrote:
 Hey Everyone,
 I agree with all of your assessments thus far.  Woudn't it be great if Apple 
 opened up it's hardware model to allow for 3rd party hardware companies and 
 just sold the OS?    I don't think I would buy it even then but it would be a 
 break from their monopolistic hardware/software coupling effort and prices 
 would precipitously drop.  But alas, I dream.  Apple profits from this sweet 
 business arraignment to the detriment of the consumer (much the same for 
 other prestige brands).
 With so many great options for Linux on the desktop I don't even consider 
 Apple.  And yes even my girlfriend is running Linux (Ubuntu) on a $500 PC 
 that does everything she needs.  That other $2000 she should have spent on 
 a shinny Apple was well spent elsewhere!  =P
 Have a great weekend,

  Apple did this before, years ago.  And they 'undid' this, as the
resulting products where lackluster, and their 'apperent quality' went
down the tubes.

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Re: Re: How Apple makes more profit on their systems...

[Thomas Charron]

On Sun, Oct 4, 2009 at 11:16 AM, Joseph ma...@yahoo.com wrote:
 Hey Everyone,
 I agree with all of your assessments thus far.  Woudn't it be great if Apple 
 opened up it's hardware model to allow for 3rd party hardware companies and 
 just sold the OS?    I don't think I would buy it even then but it would be a 
 break from their monopolistic hardware/software coupling effort and prices 
 would precipitously drop.  But alas, I dream.  Apple profits from this sweet 
 business arraignment to the detriment of the consumer (much the same for 
 other prestige brands).
 With so many great options for Linux on the desktop I don't even consider 
 Apple.  And yes even my girlfriend is running Linux (Ubuntu) on a $500 PC 
 that does everything she needs.  That other $2000 she should have spent on 
 a shinny Apple was well spent elsewhere!  =P
 Have a great weekend,

  Apple did this before, years ago.  And they 'undid' this, as the
resulting products where lackluster, and their 'apperent quality' went
down the tubes.

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Re: Enabling Virtual Machine support

[Thomas Charron]

On Mon, Sep 28, 2009 at 9:06 AM, Tom Buskey t...@buskey.name wrote:
 On Mon, Sep 28, 2009 at 8:17 AM, Jerry Feldman g...@blu.org wrote:
 Of all the hypervisors, I feel VirtualBox is the easiest to maintain.  I've
 done VMware Server, ESXi and played with KVM.  I wonder about the
 performance differences but not enough to test :-)

  I loved VMWare until the latest free version of VMWare Server 2.x.
I was highly annoyed by the fact that they went over to a Tomcat based
manager.  Specifically, if they wanted to do it, for GODS sake change
the ports they're using.  I literally gave up trying to get it to
function on my development systems which where running two versions of
Tomcat already.  This was on Windows hosts with Linux guests.

  So after my frustration I tried VirtualBox again.  I'd tried it in
the past and found it unstable, but the latest versions feel rock
solid, and much faster.  Add in the native graphics acceleration, and
it's a win for us at least.

  Now if only VirtualBox had the same management capabilities, I'd
consider using it on the servers as well.

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Re: Enabling Virtual Machine support

[Thomas Charron]

On Sun, Sep 27, 2009 at 7:36 PM, Michael ODonnell
michael.odonn...@comcast.net wrote:
 Not certain I understand what you're saying but processors in this family
 come out of their power-on Reset state in their simplest, least capable
 mode - interrupts disabled, MMU disabled, 20bit Real Mode addressing,
 etc - and each increase in capability requires a deliberate action on the
 part of the system code (typically the BIOS at first, then later the OS).
 Virtual Machine mode is like Virtual 8086 mode in that it's a capability
 that must be explicitly enabled once the OS has rigged itself to manage
 it; this as opposed to somehow being a permanent, static feature of the
 platform or CPU.  And also, AFAIK, no external HW support is required
 of the platform for VM capabilities to be utilized - if the OS is coded
 to support it and the CPU provides it, that's all you (should!)  need.

  Intel's VT-x extensions *MUST* be enabled and supported by BIOS.
I'm not sure why, I read it someplace after I bought my laptop and was
trying to find a way around it.   Not sure about VT-d.

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Re: Enabling Virtual Machine support

[Thomas Charron]

On Sun, Sep 27, 2009 at 7:59 PM, Thomas Charron twaf...@gmail.com wrote:
 On Sun, Sep 27, 2009 at 7:36 PM, Michael ODonnell
 michael.odonn...@comcast.net wrote:
 Not certain I understand what you're saying but processors in this family
 come out of their power-on Reset state in their simplest, least capable
 mode - interrupts disabled, MMU disabled, 20bit Real Mode addressing,
 etc - and each increase in capability requires a deliberate action on the
 part of the system code (typically the BIOS at first, then later the OS).
 Virtual Machine mode is like Virtual 8086 mode in that it's a capability
 that must be explicitly enabled once the OS has rigged itself to manage
 it; this as opposed to somehow being a permanent, static feature of the
 platform or CPU.  And also, AFAIK, no external HW support is required
 of the platform for VM capabilities to be utilized - if the OS is coded
 to support it and the CPU provides it, that's all you (should!)  need.
  Intel's VT-x extensions *MUST* be enabled and supported by BIOS.
 I'm not sure why, I read it someplace after I bought my laptop and was
 trying to find a way around it.   Not sure about VT-d.

  In a quick search, it has something to do with the BIOS setting
certain flags within the processor, and then 'locking' the processor,
which cannot be undone without a restart.  Even enabling the VT bit
ion the BIOS requires a hard reset of the system to actually take.

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Re: cpu processing capabilities

[Thomas Charron]

On Sat, Sep 26, 2009 at 6:56 PM, Lloyd Kvam pyt...@venix.com wrote:
 http://ark.intel.com/Product.aspx?id=42014
 claims that the P7550 supports virtualization which I expect to show up
 as vmx in the cpuflags.

 I bought a new HP laptop which featured a P7550 processor and expected
 to be able to use KVM.  Unfortunately, the vmx flag is not present, and
 HP does not believe they disabled vmx capabilities.

 http://forum.notebookreview.com/showpost.php?s=c0762a76f7b00eada10c7b8f986d9822p=5272854postcount=6
 This post convinced me that the Intel page is wrong.

 Can anyone suggest a good course of action?  Have any of you encountered
 this problem?  I can grumble to Newegg amd HP, but Intel appears to be
 the party at fault.

  Same issue with my Toshiba.  They don't have to enable it, or even
disable it.  They have to add support for it in BIOS.

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