- WLUG - wlug.mailman3.com

Cryptoparty in Worcester on Sun. Mar 22
by Steve Revilak March 18, 2015

March 18, 2015

Hello Worcester Linux Users Group! My name is Steve and I'm a Linux user who lives in the Boston Area. I'm helping to organize a Cryptoparty at the Worcester Public Library, and I wanted to extend an invitation to WLUG members. The cryptoparty is this Sunday 3/22 from 2pm - 4pm, and we plan to cover Jitsi and GnuPG. The WPL is located at 3 Salem Street, Worcester, and we'll be meeting in the Banx room. Hope to see you Sunday. Steve

4 5

Free computers and monitors.
by Bill Nelson March 16, 2015

March 16, 2015

WLUG: Before discarding these items, I want to offer them to anyone who needs them. They are all working and not missing any parts. 1. ViewSonic 19" G90fb Graphics Series monitor CRT 2. ATX full-tower custom built computer a. pentium processor b. Windows XP with discs/license c. 80 GB Western Digital HD d. Asus ATI Radeon A7000 video card e. DVD read/write f. Multiple outlet USB card g. sound card h. 300 watt power supply j. keyboard and mouse 3. Hewlett Packard Pavilion 12" monitor CRT 4. IBM Thinkpad 600 laptop a. Carrying case b. New battery c. All discs/software/licenses Please respond to whn6849(a)verizon.net if you know of a good home for them. Regards, Bill Nelson

1 0

Great meeting last night!
by Tim Keller March 13, 2015

March 13, 2015

What a great meeting last night! Chuck did a great presentation showing off several different model Pi's plus demoing their use as squeeze box remote media players. He also started to show off the MAME and DVR/MythTV stuff but we all got distracted. I think that could merit a meeting topic all by itself! We had a great show and tell of pi devices. The coolest being the homemade pi based wifi enabled security camera (with infrared LEDs!) To cap the night we ended doing a mini install fest on a "classic" Sony Vaio! Thanks everybody! Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

2 1

Re: [Wlug] Great meeting last night!
by Jamie Guinan March 13, 2015

March 13, 2015

On Fri, 13 Mar 2015, Tim Keller wrote: > What a great meeting last night! Chuck did a great presentation showing > off several different model Pi's plus demoing their use as squeeze box > remote media players. He also started to show off the MAME and DVR/MythTV > stuff but we all got distracted. I think that could merit a meeting topic > all by itself! > > We had a great show and tell of pi devices. The coolest being the homemade > pi based wifi enabled security camera (with infrared LEDs!) > > To cap the night we ended doing a mini install fest on a "classic" Sony > Vaio! > > Thanks everybody! > Tim. Tim, Do you have a link to that graphics package you were talking about? The one where you just throw data at it and check it once in a while. Thanks, -Jamie

2 1

Python 3 Programming Course
by Robert Schwein March 13, 2015

March 13, 2015

http://ieeeboston.org/event/introduction-programming-python-version-3-sprin… For anyone interested, the Institute of Electrical and Electronic Engineers (IEEE) is sponsoring a 5 session short course on programming with Python V3. Bob

1 0

OPENING - Jr to mid-level Embedded Software Engineer C/Linux
by John Spencer March 13, 2015

March 13, 2015

We have a client in Bedford, NH looking for 2 jr to mid-level embedded software engineers with 2+ yrs of commercial embedded C/Linux development experience. This is a 6 month contract. Must be able to interview and work on site Jr and mid-level Embedded Software Engineers Required: Minimum of 2 yrs commercial development experience Good background developing with C in an embedded Linux/Unix environment Experience working with multi-threaded Unix/Linux applications Experience working with wireless products or systems is a plus BSEE or related technical degree Responsibilities: Develop embedded, real-time software for new and existing products Work with other engineers to test and debug software to get new products to market Please send your resume to jspencer (at) connectedsp.com Regards, John Spencer Connected Systems Partners Office: (978) 455-5550 x208 Cell: (978) 621-9743 jspencer(a)connectedsp.com www.connectedsp.com GET CONNECTED! All information in this email, unless indicated otherwise in the body of the email, is considered confidential and intended for the view and use of the recipient(s) only.

1 0

Re: [Wlug] REMINDER!! Meeting TONIGHT! March 12th, 2015!
by Jamie Guinan March 13, 2015

March 13, 2015

On Thu, 12 Mar 2015, Keith Wright wrote: > Jamie Guinan <guinan(a)bluebutton.com> writes: > > > I haven't been to a WLUG meeting in ages. Is it still in the same > > building in the southwest corner of the quad? The floorplan link is > > dead, > > It is not that building, the floorplan has been edited with > sheetrock, hammers, and saws. > > It is in the student center, west-by-northwest of the > central fountain. If you get there, > there is an information booth and list of events. > They will direct you to the second floor mid-century > room, with the slide rule memorial. Keith, thank you for the directions. The guy at the information booth was aware of the WLUG meeting. > > Is there parking available in the West Street lot? The West Street lot was wide open. I didn't bother to get a pass from security, but I doubt they care much at that hour. I enjoyed seeing all the Raspbery Pi projects. I'll try and make it to some more meetings this year. Best, -Jamie

1 0

Re: [Wlug] REMINDER!! Meeting TONIGHT! March 12th, 2015!
by Jamie Guinan March 12, 2015

March 12, 2015

I haven't been to a WLUG meeting in ages. Is it still in the same building in the southwest corner of the quad? The floorplan link is dead, http://www.wpi.edu/Admin/CC/Floorplans/37678.htm Is there parking available in the West Street lot? Will there be WiFi and/or ethernet available for the Pis? Keyboard? HDMI monitor? -Jamie On Thu, 12 Mar 2015, Tim Keller wrote: > Hey Everybody, > > This is a reminder that tonight is WLUG! > > We'll be talking about the Raspberry Pi like devices that are now on the > market and the amazing stuff we can do with them. > Chuck is going to bring along a Pi like device to show off how open > hardware helps speed along the innovation curve! > > We'll be meeting in the usual spot, the Mid-Century Room (rm-331) at 7pm. > > I'll bring along snacks and drinks and afterwards we'll go out for pizza! > > See ya there! > > Later, > Tim. > > -- > I am leery of the allegiances of any politician who refers to their > constituents as "consumers". >

4 3

REMINDER!! Meeting TONIGHT! March 12th, 2015!
by Tim Keller March 12, 2015

March 12, 2015

Hey Everybody, This is a reminder that tonight is WLUG! We'll be talking about the Raspberry Pi like devices that are now on the market and the amazing stuff we can do with them. Chuck is going to bring along a Pi like device to show off how open hardware helps speed along the innovation curve! We'll be meeting in the usual spot, the Mid-Century Room (rm-331) at 7pm. I'll bring along snacks and drinks and afterwards we'll go out for pizza! See ya there! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

1 0

March Meeting Reminder!!!! Thursday March 12th 2015 at 7pm in the Mid Century Room (rm 331)
by Tim Keller March 10, 2015

March 10, 2015

Hey Everybody! This Thursday (March 12th) we've got our monthly WLUG meeting! Same bat time, same bat channel! This month we're going to be talking about the Raspberry Pi. It's come along way since the "A" model has come out! Also because the Pi is open lots of compatible Pi like devices have come on the market as well. Chuck has offered to show off his ODROID-C1 <http://www.hardkernel.com/main/products/prdt_info.php> I'll bring along my Pi and the GPIO stuff. If you've got a Pi, bring it along and we can talk shop and swap ideas! Per our standard convention I'll bring along the soda and chips and afterwards we'll continue to conversation while stuffing ourselves with Tech Pizza. Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

1 0

Meeting reminder! Next Meeting Thursday March 12th 2015!!!
by Tim Keller March 3, 2015

March 3, 2015

Hey Everybody! The next WLUG meeting is Thursday March 12th at 7pm in the mid century room (rm 331)! As of right now, I don't have a speaker lined up! If anybody has an ache to present something, have at it. Otherwise, we could do an open discussion meeting since we haven't had one of those in a while. I know in the past there's been some serious interest in what can be done with a raspberry pi. Like always they'll be refreshments and snacks followed by an egregious consumption of pizza. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

3 3

Linux kernel/driver contract in RI
by John Spencer Feb. 26, 2015

Feb. 26, 2015

We have a client with a 6+ month contract opening for a Linux expert in RI, south of Providence. Linux internals Device Driver Development Extensive experience with Linux Kernel Architecture development and configuration including Linux OS System Kernel Programming Board Support Package experience Ability to configure, build and release cross platform Linux tool chains. Please contact me directly via email or phone (below) for more details. Regards, John Spencer Connected Systems Partners Office: (978) 455-5550 x208 Cell: (978) 621-9743 jspencer(a)connectedsp.com<mailto:jspencer@connectedsp.com> www.connectedsp.com<http://www.connectedsp.com/> GET CONNECTED! All information in this email, unless indicated otherwise in the body of the email, is considered confidential and intended for the view and use of the recipient(s) only.

1 0

Speech recognition software
by Andy Stewart Feb. 21, 2015

Feb. 21, 2015

HI everybody, Do any of you have experience or recommendations with any Free Software that does speech recognition? Thanks, Andy -- Andy Stewart (KB1OIQ) Founder: Worcester Linux Users' Group Founder: Chelmsford Linux Meetup Group President: PART of Westford, MA (WB1GOF)

3 3

Pile o Hardware for sale (some free)
by Pete Wason Feb. 17, 2015

Feb. 17, 2015

Hi, I have a pile of Dell desktops and servers for sale. And a bunch of other stuff. Some for free as it is either very old or misbehaving in some way. (6) Precision 690 workstations, some missing memory and/or drives, all functional. multi-RAID, multi-monitor. Giant 90lb. boxes, all metal. (4) PowerEdge R300 1U rackmount servers, some missing memory and/or (SAS) drives, all functional. (3) PowerEdge SC1420 tower servers, one has a RAID5 SCSI array, all functional. (2) XPS GEN 4/5 workstations (gaming boxes from early '00s), w/ RAID1. Working. A few Optiplex 740s, some working, some not. 2.9Ghz Athlon II 64 CPUs. Most need memory. PowerEdge SC600, needs new fan and PS. Pentiam 2.4Ghz. PowerEdge 2400, monster of a case, 8? SCSI drives in 2 arrays, dual PIII CPUs, makes an excellent bench+space heater. A few older Dell desktops like a Dim 4550, Dim 5100, Opti 280GX, etc. Working. Miscellaneous used HDs, D-Dock docking stations w/ removable HD modules, video cables, video cards, et al. Broken 6-tape DDS4 autochanger, some new 20/40GB tapes 4-5 monitors which may be fixable; Samsung 20" 4/3 Cavalier 2-bay external RAID box, working w/ (2) 500GB drives G-RAID 5-bay hot-swap enclosure, gutted, (was thinking about turning it into a mini-PC or a SCSI-tower for my Amiga :) Other stuff.. No warranties, obviously. Caveat emptor, blah blah blah blah, yada yada.. If interested I can send you specs directly. Nothing individually priced higher than $375. Volume (or tonnage) discounts are available. Please reply to: pwason(a)clarku.edu -- Pete Wason * Hy Noom Publications * 5088655414 * codevark(a)aim.com * codevark "Aborigine left speechless by steady disappearance of native dialects." -- The Onion

1 0

Wireless mesh network question
by Andy Stewart Feb. 16, 2015

Feb. 16, 2015

HI guys, I am planning to setup a wireless mesh network at a ham radio event in June. Each mesh node will consist of two Linksys WRT54GLs, much like the demo I showed at a recent WLUG meeting. One of the WRT54GLs will be on channel 6 and carry mesh network traffic. The other one will be on channel 1 and allow generic wifi devices access to the mesh network. It seems like there would be an interference problem if every node allowed wifi access on channel 1. Should this be 4 different wifi channels? It is possible for a user to be within radio range of multiple of them simultaneously. Thoughts? I've never setup a wireless network before and could use your advice. These mesh nodes will be placed outside in weatherproof enclosures with battery power. Thanks! Andy -- Andy Stewart (KB1OIQ) Founder: Worcester Linux Users' Group Founder: Chelmsford Linux Meetup Group President: PART of Westford, MA (WB1GOF)

4 4

Reminder! Meeting tomorrow! Feb. 12th 2015 at 7pm (Mid-Century Room) rm 331!
by Tim Keller Feb. 11, 2015

Feb. 11, 2015

Hey Everybody, This is just a quick reminder that we're having a meeting tomorrow at 7pm in the Mid-Century Room (rm 331) in the student center. Andy is going to be giving a talk about mesh networking! Afterwards we'll do pizza at Tech! Refreshments will be provided at the meeting as well. Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

1 0

sshd_config MaxStartups
by Jamie Guinan Feb. 11, 2015

Feb. 11, 2015

Hi Group! I'm seeking opinions about an sshd feature. I was doing some work on a remote system (I did not set it up) that seemed to be refusing ssh and scp connections randomly. I looked into it, and finally stumbled across this from sshd_config(5), MaxStartups Specifies the maximum number of concurrent unauthenticated connections to the SSH daemon. Additional connections will be dropped until authentication succeeds or the LoginGraceTime expires for a connection. The default is 10. Alternatively, random early drop can be enabled by specifying the three colon separated val‐ ues “start:rate:full” (e.g. "10:30:60"). sshd(8) will refuse connection attempts with a probability of “rate/100” (30%) if there are currently “start” (10) unauthenticated connec‐ tions. The probability increases linearly and all connection attempts are refused if the number of unauthenticated connections reaches “full” (60). Indeed, the server had this setting, MaxStartups 10:50:20 This just seems like a terrible option. You can DOS their server just by making 20 connections and leaving them hanging. And it breaks any automated scripts relying on ssh or scp (unless you wrap them in a loop until they succeed, ugh). My guess is that the reasoning behind this feature that it will filter out a number of automated attacks. That seems no better than security-by-obscurity, and I know how some of you feel about that. :) Can you think of any sane reason to enable this feature, or for it to even exist at all? Best regards, -Jamie

2 1

linux networking question (reformatted for readability)
by Brad Feb. 8, 2015

Feb. 8, 2015

(i appologize for the previous message that i completely unreadable.) Dear W-LUGgers, I had some strange network related behavior that left me baffled and i wanted to hear some theories from more experienced network admins. The network layout is the following. The network is pretty simple, external traffic passes through a bridged-firewall (OpenBSD, my choice) into an OS X server (not my choice) which handles NAT/DHCP/DNS et al., and all the office computers are dhcp clients to the OS X server. The trouble machines are linux (ubuntu) desktop clients. The scenario is the following. I was doing work on the bridged firewall (OpenBSD) and somehow caused it to kernel panic, oopsie! So the bridged-firewall went down thus no-one had internet access, Dou! i quickly bounced the machine. It came back on-line and clients were able to access the internet, huzzah! But, the strange behavior was in two linux machines within the network that were not able to access some external IPs. My linux desktop could not access 8.8.8.8, when pinging, i could see an arp who-has request originating from my machine, i could see the packet come into the OS X server. But the request always went unanswered. The same behavior happened to another linux desktop but with 192.48.178.134 (sgi.com) My desktop could ping sgi.com. So each linux desktop had *different* unreachable IPs. The rest of the internet was reachable. I tried clearing the arp-cache on the OS X server, then clearing the NAT state tables, then I rebooted the OS X server, none solved the problem. I finally renewed the dhcp lease on my linux desktop machine and that allowed the ping to complete. What would case this behavior? Could it be stale arp-cache on the linux machine? ( I *should* have tried to clear the arp-cache on the linux machine before i renewed the dhcp lease, but i didn’t think of that until after the fact.) The linux machine was sending out arp who-has requests so would a stale cache even matter? Why would no one answer the arp requests? I am not an expert network admin (its just a side job since the company is only 15 people). I don’t expect to get a resolution but i’m interested to hear any theories. Thanks and cheers, — brad PS. As a worcester transplant to boston, i am really jealous i don’t live closer to attend meetings. The topics of late sound outstanding.

3 3

linux networking question.
by Brad Feb. 7, 2015

Feb. 7, 2015

1 0

Reminder: Next WLUG Meeting will be Thursday February 12th 2015 @ 7pm Rm 331 (Mid-Century Room)
by Tim Keller Feb. 6, 2015

Feb. 6, 2015

Hey Everybody, I'm glad to announce that our founder Andy Stewart will be doing a talk on wireless mesh networking! I expect this talk will be both entertaining and interesting. Afterwards we'll be retiring to Tech for pizza! Date: Thursday February 12th, 2015 7pm-9pm Location: WPI Campus Center, Mid-Century Room 331 Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

2 1

Opening, C++/Linux SW Eng, Permanent; Johnston, RI
by Tim Longua Feb. 5, 2015

Feb. 5, 2015

Our Client in Johnston, RI is looking for a Software Engineer to help in the design and development of an exciting next generation platform. This candidate will be working with cutting edge tools and technologies. Requirements Include: * 7 + years C/C++ experience developing commercial products * Experience developing distributed systems and applications on RedHat Linux or Embedded Linux is required * Multithreaded and object oriented design experience * Oracle, MySQL, or other database experience * TCP/IP, Socket Programming, Qt and Hadoop are all plusses If interested please send your resume to timL (at) connectedsp.com. Regards, Tim Longua Connected Systems Partners Connecting Top Talent with Top Companies Office: 978-455-5550 x206 Cell: 603-303-8978 timL(a)connectedsp.com<mailto:jspencer@connectedsp.com> www.connectedsp.com<www.connectedsp.com%20> GET CONNECTED! Unless otherwise explicitly instructed by sender, all information in this email is considered confidential and intended for the view and use of the recipient(s) only.

1 0

??JGAAP.JAR???
by Colin Novick Jan. 27, 2015

Jan. 27, 2015

Anyone here ever use JGAAP, the authorship Java JAR program? http://evllabs.com/jgaap/w/index.php/Main_Page It is returning errors, and sadly, I do not know enough to interpret the terminal lines to figure out why it keeps returning errors when you run the analysis, even if you try it in various ways. The program is clearly running but there is a catch. Anyone out there familiar with this? Thanks guys! Colin

1 0

The speaker for the February meeting has been lined up!
by Tim Keller Jan. 26, 2015

Jan. 26, 2015

Hey Everybody, Great news! Andy will be speaking at the Feb. meeting! He's going to be doing a talk on Mesh networking. I figure this will "mesh" nicely with Frank's talk about 802.11*[nn]* networking. Once I get the official title for the talk I'll send out a more official reminder. On a different note... Is there anything that people are interested in that we could work on lining up speakers for? Here's a couple of ideas... * Software defined networking * Robotics * Home automation -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

5 6

Reminder: WLUG meeting tomorrow (Jan 8th 2015)
by Tim Keller Jan. 7, 2015

Jan. 7, 2015

Hey Everybody, Just a reminder we've got a meeting tomorrow! Frank Sweetser is going to be giving an impromptu talk about the new 11ac wireless standard. What issues it addresses and likely creates, along with other wireless standards coming over the horizon. Date: Thursday January 8th, 2015 Time: 7pm Location: WPI Mid Century Room (rm 331) We'll be doing the usual refreshments and pizza afterwards. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

1 0

Re: [Wlug] Next Meeting: Thursday January 8th, 2015!
by Tim Keller Jan. 6, 2015

Jan. 6, 2015

That would be awesome! Have at it! Later, Tim. On Mon, Jan 5, 2015 at 9:54 PM, Frank Sweetser <fs(a)wpi.edu> wrote: > > If people can live with the fact that I won't have time to put much > together > in the way of slides, I'll be happy to babble for a little while about 11ac > wireless, and what else is coming down the wireless pipeline. > > Frank Sweetser fs at wpi.edu | For every problem, there is a solution > that > Manager of Network Operations | is simple, elegant, and wrong. > Worcester Polytechnic Institute | - HL Mencken > > On 1/4/2015 10:30 PM, Tim Keller wrote: > > Hey Everybody, > > > > I hope you all had a safe and happy holidays and a happy new year. > > Due to a scheduling conflict Andy's talk has been pushed off to the Feb. > > meeting. If anybody wants to talk about anything specific, let me know. > > Otherwise we'll consider it an open discussion night. > > > > Here are the details on date/time/location... > > > > Date: Thursday January 8th, 2015 > > Time: 7pm > > Location: WPI Mid Century Room (rm 331) > > > > Thanks, > > Tim. > > -- > > I am leery of the allegiances of any politician who refers to their > > constituents as "consumers". > > > > > > _______________________________________________ > > Wlug mailing list > > Wlug(a)mail.wlug.org > > http://mail.wlug.org/mailman/listinfo/wlug > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

3 2