From kevin.a.mcgregor at gmail.com  Mon Nov  2 20:43:36 2009
From: kevin.a.mcgregor at gmail.com (Kevin McGregor)
Date: Mon, 2 Nov 2009 20:43:36 -0600
Subject: [RndTbl] Parts?
Message-ID: <6756caf10911021843w679d3ec0gbb63b16c4daf08f6@mail.gmail.com>

Hi there,

I'm going to mod my WRT54GL to use power over Ethernet, and I need some good
quality wire. I was going to use some from the wiring harness of an old
power supply (e.g. AT, ATX), but I don't have any around I can cannibalize.
Does anyone else have something I can use? Or a suggestion?

Kevin
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From athompso at athompso.net  Mon Nov  2 20:48:31 2009
From: athompso at athompso.net (Adam Thompson)
Date: Mon, 2 Nov 2009 20:48:31 -0600
Subject: [RndTbl] Parts?
In-Reply-To: <6756caf10911021843w679d3ec0gbb63b16c4daf08f6@mail.gmail.com>
References: <6756caf10911021843w679d3ec0gbb63b16c4daf08f6@mail.gmail.com>
Message-ID: <8ce1230f0911021848oe3ecb5iba3db79117f95702@mail.gmail.com>

On Mon, Nov 2, 2009 at 20:43, Kevin McGregor <kevin.a.mcgregor at gmail.com>wrote:

> Hi there,
> I'm going to mod my WRT54GL to use power over Ethernet, and I need some
> good quality wire. I was going to use some from the wiring harness of an old
> power supply (e.g. AT, ATX), but I don't have any around I can cannibalize.
> Does anyone else have something I can use? Or a suggestion?
> Kevin
>

Yup.  Cut up a crummy patch cord.  Dollarama sells 3' patch cords for $1.
 Since PoE runs over Cat5 (by definition) you know that any Cat5 cable is
automatically sufficient for your purposes.  And as a bonus, most Cat5 patch
cords are stranded with wire that's fairly easily twistable, tinnable and
solderable.  Extra bonus, it's usually fine enough and pliable enough that
you can route it pretty much anywhere.  If you're only running power over
it, don't worry about preserving the twist or the outer jacket - each wire
internally has regular insulation.  The only downside is that sometimes the
wire is so fine it's hard to work with your fingers.

-- 
-Adam Thompson
<athompso at athompso.net>
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From gedetil at cs.umanitoba.ca  Tue Nov  3 14:15:27 2009
From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux)
Date: Tue, 3 Nov 2009 14:15:27 -0600 (CST)
Subject: [RndTbl] MUUG Meeting, Nov 10, 7:30pm -- MediaWiki
Message-ID: <200911032015.nA3KFRF17721@iron.cs.umanitoba.ca>

The Manitoba UNIX User Group (MUUG) will be holding its next monthly
meeting on Tuesday, November 10.  The meeting topic for this month is
as follows:

   MediaWiki

   MediaWiki is an open source wiki package, originally designed to
   implement Wikipedia. It is now used by several other projects of the
   non-profit Wikimedia Foundation and by many other sites. MediaWiki
   is written in PHP, and runs nicely in the typical LAMP stack. It is
   fairly easy to set up and most configuration can be done through a
   web browser.

   In the collaborative spirit of MediaWiki, this presentation will
   be a joint effort between Kevin McGregor, Gilbert Detillieux and
   Michael Doob. Gilbert will focus on installing and configuring
   MediaWiki, Kevin will focus on using and managing it, and Michael
   will show a novel way he's using MediaWiki on a netbook to store
   and present class notes, complete with mathematical notation.

   This month's RTFM topic, by Montana Quiring, will look at UNIX pipes.

The group holds its general meetings at 7:30pm on the second Tuesday of
every month from September to June.  (There are no meetings in July and
August.) Meetings are open to the general public; you don't have to be a
MUUG member to attend.

   **********************************************************************
   Please note our meeting location: The IBM offices, at 400 Ellice Ave.
   (between Edmonton and Kennedy). When you arrive, you will have to
   sign in at the reception desk, and then wait for someone to take you
   (in groups) to the meeting room. Please try to arrive by about 7:15pm, 
   so the meeting can start promptly at 7:30pm. Don't be late, or you may
   not get in.  (But don't come too early either, since security may not
   be there to let you in before 7:15 or so.) Non-members may be required
   to show photo ID at the security desk.

   Limited parking is available for free on the street, either on Ellice
   Ave. or on some of the intersecting streets. Indoor parking is also
   available nearby, at Portage Place, for $5.00 for the evening. Bicycle
   parking is available in a bike rack under video surveillance located
   behind the building on Webb Place.
   **********************************************************************

For more information about MUUG, and its monthly meetings, check out their
Web server:

	http://www.muug.mb.ca/

Help us promote this month's meeting, by putting this poster up on your
workplace bulletin board or other suitable public message board:

	http://www.muug.mb.ca/meetings/MUUGmeeting.pdf

-- 
Gilbert E. Detillieux		E-mail: <gedetil at muug.mb.ca>
Manitoba UNIX User Group	Web:	http://www.muug.mb.ca/
PO Box 130 St-Boniface		Phone:  (204)474-8161
Winnipeg MB CANADA  R2H 3B4	Fax:    (204)474-7609

From gedetil at cs.umanitoba.ca  Wed Nov 11 21:21:32 2009
From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux)
Date: Wed, 11 Nov 2009 21:21:32 -0600
Subject: [RndTbl] Fwd: O'Reilly UG News: Try the all new Safari Books Online
 - 10 days free - no charge, no strings attached!
Message-ID: <4AFB7F3C.2090403@cs.umanitoba.ca>



FYI...

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From ummar143 at shaw.ca  Thu Nov 19 18:00:46 2009
From: ummar143 at shaw.ca (Dan Martin)
Date: Thu, 19 Nov 2009 18:00:46 -0600
Subject: [RndTbl]  auto-IP
In-Reply-To: <fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
References: <mailman.3.1251478808.3873.roundtable@muug.mb.ca>
	<fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
Message-ID: <CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>

I am wondering how I can connect my Mac to a device over ethernet,  
when I have no control over the device's IP address.

I recently purchased HDHomeRun, a dual TV tuner that connects via  
ethernet.  The idea of it is to be able to stream video content to any  
machine on your network.

My network has static IP addresses, so just plugging it into the hub  
and searching for the device does not work.  I understand that it is a  
DHCP client.  There is no documentation with the device, such as a  
default IP address if one exists.

I will only use the video on one machine at present, my Mac.   
Wikipedia indicates that the device "will also work via an auto IP  
address if no DHCP server is available".  Instructions meant for  
Windows (different document) talk about assigning an IP address of  
169.254.x.x to the network interface.

I am far from clear on how that works.  If the NIC I use to attach the  
HDHomeRun has such an IP address, does the HDHomeRun know to configure  
itself with a similar address?  The Mac's network preferences GUI  
allows 4 choices:  DHCP, DHCP with manual address, BootP, and Manual.   
None of these seems to work.

I can't even be sure if the device works - but LEDs come on.

Does anyone have suggestions, other than changing my entire network to  
DHCP?  Can you have some nodes on a network get addresses by DHCP  
while others are static?

-Dan

Dan Martin
GP Hospital Practitioner
Computer Scientist
ummar143 at shaw.ca
(204) 831-1746
answering machine always on

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From robert at cluenet.org  Thu Nov 19 19:49:51 2009
From: robert at cluenet.org (Robert Keizer)
Date: Thu, 19 Nov 2009 19:49:51 -0600
Subject: [RndTbl] auto-IP
In-Reply-To: <CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
References: <mailman.3.1251478808.3873.roundtable@muug.mb.ca>	<fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
	<CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
Message-ID: <4B05F5BF.1040507@cluenet.org>

Dan Martin wrote:
> I am wondering how I can connect my Mac to a device over ethernet, 
> when I have no control over the device's IP address.
>
> I recently purchased HDHomeRun, a dual TV tuner that connects via 
> ethernet.  The idea of it is to be able to stream video content to any 
> machine on your network.
>
> My network has static IP addresses, so just plugging it into the hub 
> and searching for the device does not work.  I understand that it is a 
> DHCP client.  There is no documentation with the device, such as a 
> default IP address if one exists.
>
> I will only use the video on one machine at present, my Mac. 
>  Wikipedia indicates that the device "will also work via an auto IP 
> <http://en.wikipedia.org/wiki/Link-local_address> address if no DHCP 
> server is available".  Instructions meant for Windows (different 
> document) talk about assigning an IP address of 169.254.x.x to the 
> network interface.
>
> I am far from clear on how that works.  If the NIC I use to attach the 
> HDHomeRun has such an IP address, does the HDHomeRun know to configure 
> itself with a similar address?  The Mac's network preferences GUI 
> allows 4 choices:  DHCP, DHCP with manual address, BootP, and Manual. 
>  None of these seems to work.
>
> I can't even be sure if the device works - but LEDs come on.
>
> Does anyone have suggestions, other than changing my entire network to 
> DHCP?  Can you have some nodes on a network get addresses by DHCP 
> while others are static?
>
> -Dan
>
> Dan Martin
> GP Hospital Practitioner
> Computer Scientist
> ummar143 at shaw.ca <mailto:ummar143 at shaw.ca>
> (204) 831-1746
> answering machine always on
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Roundtable mailing list
> Roundtable at muug.mb.ca
> http://www.muug.mb.ca/mailman/listinfo/roundtable
>   


The simplest solution to solve your problem in my opinion would be to 
setup a dhcp server. If you're not positive that the device actually 
uses dhcp by default you could plug it into your laptop, turn it off, 
start wireshark or another packet monitor and see if it broadcasts.

With a dhcp server you can specify specific IP addresses for specific 
mac addresses, meaning that you wouldn't have a problem with running 
static IP's only, since it would be possible to continue your current 
numbering pattern without problems.

Limiting the dhcp server to only give an address to a specific mac 
address would be the way I would go, once you've made sure that the 
device actually broadcasts looking for an address.

All the best,
Robert Keizer

From kmcgregor at shaw.ca  Thu Nov 19 21:01:15 2009
From: kmcgregor at shaw.ca (Kevin McGregor)
Date: Thu, 19 Nov 2009 21:01:15 -0600
Subject: [RndTbl] auto-IP
In-Reply-To: <CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
References: <mailman.3.1251478808.3873.roundtable@muug.mb.ca>
	<fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
	<CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
Message-ID: <6756caf10911191901m18b2dfd0v9b33eede80660772@mail.gmail.com>

Well, how do you connect to the Internet at home? Through some kind of wired
or wireless router? Often, they have a DHCP server built-in and enabled by
default, and your tuner box may get one from there. If that was the case,
you could check the web interface of the router to see which addresses it
handed out, and probably the only one would be for your new tuner device.

Kevin

On Thu, Nov 19, 2009 at 6:00 PM, Dan Martin <ummar143 at shaw.ca> wrote:

> I am wondering how I can connect my Mac to a device over ethernet, when I
> have no control over the device's IP address.
>
> I recently purchased HDHomeRun, a dual TV tuner that connects via ethernet.
>  The idea of it is to be able to stream video content to any machine on your
> network.
>
> My network has static IP addresses, so just plugging it into the hub and
> searching for the device does not work.  I understand that it is a DHCP
> client.  There is no documentation with the device, such as a default IP
> address if one exists.
>
> I will only use the video on one machine at present, my Mac.  Wikipedia
> indicates that the device "will also work via an auto IP<http://en.wikipedia.org/wiki/Link-local_address>address if no DHCP server is available".  Instructions meant for Windows
> (different document) talk about assigning an IP address of 169.254.x.x to
> the network interface.
>
> I am far from clear on how that works.  If the NIC I use to attach the
> HDHomeRun has such an IP address, does the HDHomeRun know to configure
> itself with a similar address?  The Mac's network preferences GUI allows 4
> choices:  DHCP, DHCP with manual address, BootP, and Manual.  None of these
> seems to work.
>
> I can't even be sure if the device works - but LEDs come on.
>
> Does anyone have suggestions, other than changing my entire network to
> DHCP?  Can you have some nodes on a network get addresses by DHCP while
> others are static?
>
> -Dan
>
> Dan Martin
> GP Hospital Practitioner
> Computer Scientist
> ummar143 at shaw.ca
> (204) 831-1746
> answering machine always on
>
>
> _______________________________________________
> Roundtable mailing list
> Roundtable at muug.mb.ca
> http://www.muug.mb.ca/mailman/listinfo/roundtable
>
>
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From GJDitchfield at acm.org  Thu Nov 19 21:43:10 2009
From: GJDitchfield at acm.org (Glen Ditchfield)
Date: Thu, 19 Nov 2009 21:43:10 -0600
Subject: [RndTbl] auto-IP
In-Reply-To: <CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
References: <mailman.3.1251478808.3873.roundtable@muug.mb.ca>
	<fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
	<CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
Message-ID: <200911192143.10635.GJDitchfield@acm.org>

On November 19, 2009 06:00:46 pm Dan Martin wrote:
> I recently purchased HDHomeRun, a dual TV tuner that connects via
> ethernet.  The idea of it is to be able to stream video content to any
> machine on your network.

The support section of the silicondust website has some instructions for 
setting up with MythTV:
   http://www.silicondust.com/hdhomerun/instructions/mythtv
which mention a Linux utility that they distribute: hdhomerun_config. 

The Ubuntu Community Documentation page for the HDHomeRun
   https://help.ubuntu.com/community/HDHomeRun
says that "hdhomerun_config discover" will dump out the unit's device ID and IP 
number.

So, if you have a Linux computer somewhere else on the network, you might be 
able to use it to find out what IP the HDHomerun thinks it has.

Here's a MythTV thread about HDHomeRun and static networks, which makes it 
sound difficult:
    http://www.gossamer-threads.com/lists/mythtv/users/364589

However, the last note in this thread seems to claim that your Mac can become 
a DHCP server for the HDHomerun, just by turning on Internet Sharing.  That's 
news to me.
    http://www.123macmini.com/forums/viewtopic.php?p=101362

From swalberg at gmail.com  Thu Nov 19 22:47:55 2009
From: swalberg at gmail.com (Sean Walberg)
Date: Thu, 19 Nov 2009 22:47:55 -0600
Subject: [RndTbl] auto-IP
In-Reply-To: <CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
References: <mailman.3.1251478808.3873.roundtable@muug.mb.ca>
	<fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
	<CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
Message-ID: <cc43a8f80911192047j74ffe408hbda4862f4ea7c98a@mail.gmail.com>

169.254.0.0/16 is the DHCP autoconfigure address. Any host that tries to get
a DHCP address, but fails, will pick a random address out of that network.
The idea is that if everyone uses that network, you can still have
communication between hosts.

If you want to go that route (pardon the pun) then you could always give
your Mac a second IP address of 169.254.1.1/255.255.0.00 and it will be able
to talk to the HDHomeRun box... as long as you know the address of the
tuner.

Alternatively, set up a DHCP server to serve addresses within your subnet.
You can safely run statically addressed machines and DHCP machines together.
Configure your DHCP server to only use a small range of hosts that won't
conflict with your static addresses. The static machines will work, the DHCP
machines will get their address with DHCP.

Sean

On Thu, Nov 19, 2009 at 6:00 PM, Dan Martin <ummar143 at shaw.ca> wrote:

> I am wondering how I can connect my Mac to a device over ethernet, when I
> have no control over the device's IP address.
>
> I recently purchased HDHomeRun, a dual TV tuner that connects via ethernet.
>  The idea of it is to be able to stream video content to any machine on your
> network.
>
> My network has static IP addresses, so just plugging it into the hub and
> searching for the device does not work.  I understand that it is a DHCP
> client.  There is no documentation with the device, such as a default IP
> address if one exists.
>
> I will only use the video on one machine at present, my Mac.  Wikipedia
> indicates that the device "will also work via an auto IP<http://en.wikipedia.org/wiki/Link-local_address>address if no DHCP server is available".  Instructions meant for Windows
> (different document) talk about assigning an IP address of 169.254.x.x to
> the network interface.
>
> I am far from clear on how that works.  If the NIC I use to attach the
> HDHomeRun has such an IP address, does the HDHomeRun know to configure
> itself with a similar address?  The Mac's network preferences GUI allows 4
> choices:  DHCP, DHCP with manual address, BootP, and Manual.  None of these
> seems to work.
>
> I can't even be sure if the device works - but LEDs come on.
>
> Does anyone have suggestions, other than changing my entire network to
> DHCP?  Can you have some nodes on a network get addresses by DHCP while
> others are static?
>
> -Dan
>
> Dan Martin
> GP Hospital Practitioner
> Computer Scientist
> ummar143 at shaw.ca
> (204) 831-1746
> answering machine always on
>
>
> _______________________________________________
> Roundtable mailing list
> Roundtable at muug.mb.ca
> http://www.muug.mb.ca/mailman/listinfo/roundtable
>
>


-- 
Sean Walberg <sean at ertw.com>    http://ertw.com/
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From ummar143 at shaw.ca  Thu Nov 19 23:12:02 2009
From: ummar143 at shaw.ca (Dan Martin)
Date: Thu, 19 Nov 2009 23:12:02 -0600
Subject: [RndTbl] auto-IP
In-Reply-To: <200911192143.10635.GJDitchfield@acm.org>
References: <mailman.3.1251478808.3873.roundtable@muug.mb.ca>
	<fa0a5d060908281313x69c75319h315860d479032f6a@mail.gmail.com>
	<CAAADB44-AE33-439E-A0AA-7E5092B4C387@shaw.ca>
	<200911192143.10635.GJDitchfield@acm.org>
Message-ID: <3CF01805-F1DB-4EED-9224-4270BFEBDEF4@shaw.ca>

Thanks Glen!

I don't know what exactly happens with the Internet Sharing - but I  
turned it on, and the command line scanning program is finally able to  
see the device and report an IP address for it.

I guess this enables the airport base station to assign act as a DHCP  
server and assign an address to a connected device?  Does internet  
sharing set up a bridge between devices connected to the Mac by other  
ethernet ports, and the airport base?  In any case, that single change  
has enabled detection of the device.

-Dan

On 19-Nov-09, at 9:43 PM, Glen Ditchfield wrote:

>
> However, the last note in this thread seems to claim that your Mac  
> can become
> a DHCP server for the HDHomerun, just by turning on Internet  
> Sharing.  That's
> news to me.
>    http://www.123macmini.com/forums/viewtopic.php?p=101362
> _______________________________________________
> Roundtable mailing list
> Roundtable at muug.mb.ca
> http://www.muug.mb.ca/mailman/listinfo/roundtable

Dan Martin
GP Hospital Practitioner
Computer Scientist
ummar143 at shaw.ca
(204) 831-1746
answering machine always on


From gedetil at cs.umanitoba.ca  Tue Nov 24 12:28:39 2009
From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux)
Date: Tue, 24 Nov 2009 12:28:39 -0600
Subject: [RndTbl] Fwd: IPTPS '10 CFP
Message-ID: <4B0C25D7.6000101@cs.umanitoba.ca>

FYI...

-------- Original Message --------
Subject: IPTPS '10 CFP
Date: Tue, 24 Nov 2009 10:09:02 -0800
From: Lionel Garth Jones <lgj at usenix.org>
To: info at muug.mb.ca, gedetil at muug.mb.ca

On behalf of the 9th International Workshop on Peer-to-Peer Systems
(IPTPS '10) program committee, we are inviting you to submit engaging
position papers on the current and future trends in peer-to-peer
systems.

Co-located with NSDI '10 in San Jose, CA, this one-day workshop provides
a venue in which to present and discuss peer-to-peer technologies,
applications, and systems and to identify key research issues and
challenges that lie ahead.

This year, the workshop's charter will be expanded to include topics
relating to self-organizing and self-managing distributed systems. This
is in response to recent trends where self-organizing techniques
proposed in early peer-to-peer systems have found their way into more
managed settings such as datacenters, enterprises, and ISPs to help deal
with growing scale, complexity, and heterogeneity. In the context of
this year's workshop, peer-to-peer systems are defined to be large-scale
distributed systems that are mostly decentralized, are self-organizing,
and might or might not include resources from multiple administrative
domains.

Papers will be selected based on originality, likelihood of spawning
insightful discussion, and technical merit. The program will include
presentations of position papers along with plenty of time for lively
discussion among the participants, as well as a demo session for working
systems.

Topics of interest include but are not limited to:

* Network and system support for peer-to-peer systems
* Self-organizing and self-managing distributed systems
* Adaptive algorithms and architectures for large-scale distributed
systems
* New applications and protocols for peer-to-peer systems
* Availability, robustness, performance, and scaling
* Security, privacy, anonymity, anti-censorship, and incentives
* Lessons drawn from experience with deployed peer-to-peer systems
* Measurement, modeling, and workload characterization

Complete paper submissions are due Friday, December 18, 2009, 11:59
p.m. EST.

For more details on the submission process, please see the complete
Call for Papers at:
http://www.usenix.org/iptps10/cfpa/

We look forward to receiving your submissions!

Michael J. Freedman, Princeton University
Arvind Krishnamurthy, University of Washington
IPTPS '10 Program Co-Chairs
iptps10chairs at usenix.org

---------------------------------
Call for Papers
9th International Workshop on Peer-to-Peer Systems (IPTPS '10)
April 27, 2010
San Jose, CA
http://www.usenix.org/iptps10/cfpa/
Submissions Deadline: December 18, 2009, 11:59 p.m. EST
---------------------------------


From athompso at athompso.net  Tue Nov 24 13:39:50 2009
From: athompso at athompso.net (Adam Thompson)
Date: Tue, 24 Nov 2009 13:39:50 -0600
Subject: [RndTbl] Soekris or ALiX/WRAP boards?
Message-ID: <8ce1230f0911241139v32f49c04uf7cd874cc0de6186@mail.gmail.com>

Does anyone have (or know of) any (possibly used) Soekris or
PCEngines' WRAP or ALIX systems they'd like to get rid of?

I need a small, fanless system to provide a single function, and
definitely would prefer to run OpenBSD on it, and it needs to run
headless... so I'd prefer one of the above-mentioned systems, if
anyone wants to sell.  It's not a demanding application, even the old
net4801 boards should be good enough.

-- 
-Adam Thompson
 <athompso at athompso.net>