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Reminder: WLUG BBQ July 9th 7pm!
by Tim Keller July 2, 2015

July 2, 2015

Longtime member Doug Mildram is graciously hosting the BBQ! The location is: 540 Linden St, Boylston MA. Time: At or before 7pm. Food: The usual {Cheese} Hamburgers / Hotdogs / Bratwurst's, Chips, dips, Soda. If you have any specific dietary needs, please let Doug and I know and we'll see what we can work out. Topics: As Doug said in his prior mail, BBQ's don't need a topic, but we'll likely be messing with FreeNAS, other ZFS stuff. We'll definitely take a crack at installing linux on Doug's lawnmower, chainsaw and or golden retrievers. Thanks, Tim. ---

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Embedded Linux contract in RI
by John Spencer June 29, 2015

June 29, 2015

We have a client in RI looking for an experienced Embedded Linux Engineer for a 6+ month contract. I have included some info below. Please call or email me directly if you are interested in hearing details. Embedded Linux engineer to work on design and development of embedded Linux system. Must have a strong prior background with embedded Linux design and development. Prior experience with C/C++ Prior Linux drivers development, test and integration Prior Linux kernel knowledge Experience with BSP development 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.

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Flat screen monitor 19" needs fixit; free to good home
by E Johnson June 28, 2015

June 28, 2015

The power went out here twice today. After the second event, monitor seems to have died. This is an Acer monitor, several years old. Black(ish) bezel; not glossy. Flat screen, I think 19" diagonal. Has been a very nice reliable monitor during its working life. Has choice of DVI input or the older kind of data connection, whatever that used to be. This specific batch of Acer monitors had used a type of capacitor which is known to have a higher-than-usual failure rate, and this is PROBABLY what it needs. Had a twin of this that fryolated same way 2 years ago, and a WLUG member came by & reported shortly after that he got it up & running with just the replacement of bad caps. This monitor has been very steady and reliable until this afternoon, with nice display and no dead pixels, ever. So if you are handy with electronics fixits, capacitors are cheap and you could probably get this working again with only a screwdriver, a soldering iron and a little bit of fiddling. Might be nice for the kid's playroom or the back office, or something. I don't know how nice games look on this monitor, since I don't do gaming. Videos always looked perfectly fine with good color. PM me if you think you want this, since I have to get down under the work table to unplug the power cord & I'm not as spry as I used to be, but can do as long as my knees aren't required to do anything radical before Noon. Pickup after Noon any day, & evenings even sort-of late-ish are okay. I can meet you at the door with this. I'm in Worcester near Elm Park. Rather give this away here than trash it, or Freecycle... first dibs to WLUG. Best wishes, Liz J

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WLUG bbq thurs july9 7pm boylston MA
by Doug Mildram June 24, 2015

June 24, 2015

Announcing (with Tim's blessing/OK) our next meeting is the WLUG summer BBQ at my house ; 540 linden st, boylston ma. <= 20min from worc via 290, .....so many other ways to get here from north/190 ; east/495, etc. Thurs July 9 at or before 7pm. Food details later. BBQ's don't need a topic, but I would love to keep doing+learning a LITTLE with -- freeNAS : my own home server works enough to NOT wanna break it, but smbd isnt working yet ( want to share with win doze) -- other ZFS-able boxes (e.g. my junker/re-loadable PC has pc-bsd with issues, want it to catch ZFS snapshots over ssh for backups ..how hard could that be?) -- chainsaws, musical instruments, tricks+treats for golden retrievers and a cat (just kidding for the meeting, but now you know way too much about me) Maybe someone else wants to bring a tower/PC for abuse or argument e.g. loading something like the above top 2, then studying the result. Or not? What did I forget besides food? -doug also with wife's blessing, if I do all the work.

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Minecraft security
by Joel June 24, 2015

June 24, 2015

I don't have an answer for this one. But do have an 8 year old minecraft fan, so listening for any answers. Joel On June 22, 2015 12:00:24 PM wlug-request(a)mail.wlug.org wrote: > Send Wlug mailing list submissions to > wlug(a)mail.wlug.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.wlug.org/mailman/listinfo/wlug > or, via email, send a message with subject or body 'help' to > wlug-request(a)mail.wlug.org > > You can reach the person managing the list at > wlug-owner(a)mail.wlug.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Wlug digest..." > > > Today's Topics: > > 1. Minecraft server security ... (David Glaser) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 21 Jun 2015 19:32:05 -0400 > From: David Glaser <dglaser(a)glaserresearch.net> > Subject: [Wlug] Minecraft server security ... > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: <55874975.1080808(a)glaserresearch.net> > Content-Type: text/plain; charset="utf-8" > > Folks, > > My grandson wants to host a minecraft server party for his boy scout > troop and my daughter and I are wondering how to ensure that the > existing machines on her home network are not compromised given that the > members of the troop will be bringing their own machinesand ethernet > switchesalthough some may be running wireless. > > I was wondering if you could give us some thoughts on how to set up the > network. It is my understanding that the minecraft clients do need to > get out to the internet to obtain a valid player name. I had thought > ofsetting up a seperate Router/Lan for the party, disconnecting the > existing router/lan from the wan and connecting the minecraft router/lan > to the wan for the duration of the party. > > Any thoughts out there? > > -David >

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Re: [Wlug] ls character range wildcard oddity? (Dennis Payne)
by Aljerin Butler,Jr. June 23, 2015

June 23, 2015

If you're still searching for an answer, you might want to research my websitehere http://customdesktopsolutions.mywebcommunity.org/index.php/help-for-do-it-y… or here Linux sysadmin-addendum | | | | | | | | | Linux sysadmin-addendumLinux sysadmin-addendum Details Category: Creating and using FOSS Published on Friday, 05 June 2015 23:50 Written by Super User Hits: 12 So you want to be a Linux sysadmin? | | | | View on customdesktopsolutions.mywebcommunity.org | Preview by Yahoo | | | | | Al Butler From: "wlug-request(a)mail.wlug.org" <wlug-request(a)mail.wlug.org> To: wlug(a)mail.wlug.org Sent: Friday, June 19, 2015 12:00 PM Subject: Wlug Digest, Vol 140, Issue 7 ----- Forwarded Message ----- Send Wlug mailing list submissions to wlug(a)mail.wlug.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.wlug.org/mailman/listinfo/wlug or, via email, send a message with subject or body 'help' to wlug-request(a)mail.wlug.org You can reach the person managing the list at wlug-owner(a)mail.wlug.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Wlug digest..." Today's Topics: 1. Re: ls character range wildcard oddity? (Dennis Payne) Interesting. I see the same behavior. Near as I can tell bash decided that the alphabet is: aAbBcCdD... I wouldn't expect that to be the case but when I played around with various file name that was the behavior I saw. So [a-c] includes upercase B while [a-b] does not. 'ls [A-c]*' will show Berry but not apple. On Fri, 2015-06-19 at 09:29 -0400, Brett Russ wrote: Can someone explain this to my evidently inadequately caffeinated brain? I was trying to use a lower case character range wildcard to list all files not starting with an uppercase letter and I noticed it wasn't working as I'd expect. So I created this simple example and still don't understand what's happening. Dir with two files: brett@spider /tmp/test $ \ls apple Berry This is what I'd expect to see: brett@spider /tmp/test $ \ls [a-b]* apple This makes no sense. Is this a bug?: brett@spider /tmp/test $ \ls [a-c]* apple Berry >From here on are just a few extra examples confirming the oddity of the above. brett@spider /tmp/test $ \ls [a]* apple brett@spider /tmp/test $ \ls [b]* ls: cannot access [b]*: No such file or directory brett@spider /tmp/test $ \ls [c]* ls: cannot access [c]*: No such file or directory brett@spider /tmp/test $ \ls a* apple brett@spider /tmp/test $ \ls b* ls: cannot access b*: No such file or directory brett@spider /tmp/test $ \ls c* ls: cannot access c*: No such file or directory brett@spider /tmp/test $ dpkg -S `which ls` coreutils: /bin/ls brett@spider /tmp/test $ dpkg -s coreutils Package: coreutils Essential: yes Status: install ok installed Priority: required Section: utils Installed-Size: 6020 Maintainer: Ubuntu Developers <ubuntu-devel-discuss(a)lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Version: 8.21-1ubuntu5.1 [SNIP] Thanks, Brett _______________________________________________ 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

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Minecraft server security ...
by David Glaser June 21, 2015

June 21, 2015

Folks, My grandson wants to host a minecraft server party for his boy scout troop and my daughter and I are wondering how to ensure that the existing machines on her home network are not compromised given that the members of the troop will be bringing their own machinesand ethernet switchesalthough some may be running wireless. I was wondering if you could give us some thoughts on how to set up the network. It is my understanding that the minecraft clients do need to get out to the internet to obtain a valid player name. I had thought ofsetting up a seperate Router/Lan for the party, disconnecting the existing router/lan from the wan and connecting the minecraft router/lan to the wan for the duration of the party. Any thoughts out there? -David

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ls character range wildcard oddity?
by Brett Russ June 19, 2015

June 19, 2015

Can someone explain this to my evidently inadequately caffeinated brain? I was trying to use a lower case character range wildcard to list all files not starting with an uppercase letter and I noticed it wasn't working as I'd expect. So I created this simple example and still don't understand what's happening. Dir with two files: brett@spider /tmp/test $ \ls apple Berry This is what I'd expect to see: brett@spider /tmp/test $ \ls [a-b]* apple This makes no sense. Is this a bug?: *brett@spider /tmp/test $ \ls [a-c]*apple Berry* >From here on are just a few extra examples confirming the oddity of the above. brett@spider /tmp/test $ \ls [a]* apple brett@spider /tmp/test $ \ls [b]* ls: cannot access [b]*: No such file or directory brett@spider /tmp/test $ \ls [c]* ls: cannot access [c]*: No such file or directory brett@spider /tmp/test $ \ls a* apple brett@spider /tmp/test $ \ls b* ls: cannot access b*: No such file or directory brett@spider /tmp/test $ \ls c* ls: cannot access c*: No such file or directory brett@spider /tmp/test $ dpkg -S `which ls` coreutils: /bin/ls brett@spider /tmp/test $ dpkg -s coreutils Package: coreutils Essential: yes Status: install ok installed Priority: required Section: utils Installed-Size: 6020 Maintainer: Ubuntu Developers <ubuntu-devel-discuss(a)lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Version: 8.21-1ubuntu5.1 [SNIP] Thanks, Brett

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Re: [Wlug] WLUG Meeting tomorrow! Jun 11th, 2015! Native ZFS on linux!
by E Johnson June 11, 2015

June 11, 2015

Shouldn't the tagline say Please excuse my levity? But roflol, you guys. Liz J On 11 June 2015 at 17:06, Frank Sweetser <fs(a)wpi.edu> wrote: > And I was hoping to see a file system that only stored data formatted in > iambic pentameter... > ---- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > > > > See you in the future, if you're going that way. > > > > -- Keith >

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WLUG Meeting tomorrow! Jun 11th, 2015! Native ZFS on linux!
by Tim Keller June 11, 2015

June 11, 2015

Hey Everybody, Sick of your limited file systems? Worried it won't scale when pentabyte disks hit the market? Good news, I've got a file system for you! I'll be doing a talk/demo of the ZFS (Zettabyte File System) naively running on Linux. This is going to be held in the campus center Rm. 129 a.k.a "Chairman's Room" at 7pm. Refreshments will be provided. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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WLUG meeting this week
by Joel June 10, 2015

June 10, 2015

I am bummed out that home / requirements / life will keep me away from the WLUG meeting this week. Very interested in learning about ZFS details, tips and configuration for the home NAS I am currently building. Any chance post meeting you could share your ZFS slides and info either on WLUG site or via email? Thank you, Joel

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WLUG Meeting Thursday June 11th, 2015 Topic: ZFS on linux! NEW LOCATION!!!
by Tim Keller June 8, 2015

June 8, 2015

The next WLUG meeting is June 11th, 2015. @ 7pm. NOTE: THE MEETING WILL BE IN THE CAMPUS CENTER RM 129 aka "Chairman's Room" I will be speaking about native ZFS on linux. I'll go into the structure of ZFS and its design principles, and how it's used in production. I'll then do a demo showing off what ZFS can do and I'll create a bunch of different FS types, etc. It should be a blast. Like usual there will be refreshments available. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Next Meeting June 11th, 2015: Topic: ZFS on linux
by Tim Keller June 1, 2015

June 1, 2015

Hey Everybody, Our next meeting is going to be on June 11th, 2015 @ 7:00pm. The topic is going to be "ZFS on linux". What is ZFS? ZFS is a logical volume manager (LVM), raid subsystem and a file system combined. I'll be doing a deep dive on how ZFS works on linux, it's strengths and weaknesses. Snacks and refreshments will be available. I'm working with Frank to verify the location. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Next Meeting Topic: ZFS on linux?
by Tim Keller May 18, 2015

May 18, 2015

Hey Gang, Would people find it interesting in doing either a ZFS centric meeting, or doing a compare/contrast Linux file system bonanza? Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Re: [Wlug] Great Meeting last night! Thanks Frank and Jeff!
by Jamie Guinan May 16, 2015

May 16, 2015

Agreed, great meeting. I learned several things from Frank's talk, I had no idea about the "hot plate" and temperature issues. And it was cool to see Jeff's machine in action, despite the hiccups. I should go to more meetings. #sophisticatedcat -Jamie On Fri, 15 May 2015, Tim Keller wrote: > Hey Everybody, > > Last nights meeting was great. A big hardy thanks to Jeff and Frank for > lugging in the printers and showing them off and giving us all a great > education on modelers, slicers and printing software. > > Here are links to things that were talked about: > > 3d Printers: > Kossel <http://reprap.org/wiki/Kossel> > printrbot-plus <http://printrbot.com/shop/assembled-metal-printrbot-plus/> > > Modelers: > openscad <http://www.openscad.org/> > tinkercad <https://www.tinkercad.com/> > > Slicers: > slic3r.org > > Printer Driving Software: > Octoprint <http://octoprint.org/> > > Thanks, > Tim. > > -- > I am leery of the allegiances of any politician who refers to their > constituents as "consumers". >

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Great Meeting last night! Thanks Frank and Jeff!
by Tim Keller May 15, 2015

May 15, 2015

Hey Everybody, Last nights meeting was great. A big hardy thanks to Jeff and Frank for lugging in the printers and showing them off and giving us all a great education on modelers, slicers and printing software. Here are links to things that were talked about: 3d Printers: Kossel <http://reprap.org/wiki/Kossel> printrbot-plus <http://printrbot.com/shop/assembled-metal-printrbot-plus/> Modelers: openscad <http://www.openscad.org/> tinkercad <https://www.tinkercad.com/> Slicers: slic3r.org Printer Driving Software: Octoprint <http://octoprint.org/> Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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WLUG Meeting Tonight (May 14th 2015) @ 7PM [!!!DIFFERENT LOCATION!!!]
by Tim Keller May 14, 2015

May 14, 2015

Hey Everybody, Tonight is the night! We'll be meeting at 7pm and learn all kinds of coolness about 3d printers! Jeff and Frank will be talking about and showing off the technology of 3d printing. Cookies/Chips/Refreshments will be there as well. Afterwards we'll continue the discussion at Tech Pizza. PLEASE NOTE!!! We're Meeting in the Forkey Conference Room in the Harrington <http://maps.wpi.edu/map/?id=609#!s/key=Harrington> Building! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Meeting Tomorrow May 14th, 2015 @ 7PM Topic: 3D Printing! [NOTE: LOCATION CHANGE]
by Tim Keller May 13, 2015

May 13, 2015

Hey Everybody, The next WLUG meeting is tomorrow! The topic will be 3D printing! Jeff and Frank will to be talking about 3D printers, showing off a Kossel and printerbot, plus the technology and software involved. !!!!PLEASE NOTE THE LOCATION HAS CHANGED!!!!! We will be meeting in the "Forkey Conference Room" in the Harrington <http://maps.wpi.edu/map/?id=609#!s/key=Harrington> building @ 7PM. Like always, we'll reconvene at Tech Pizza and have a couple slices! Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Meeting location update...
by Tim Keller May 12, 2015

May 12, 2015

Hey Everybody, Frank has come through and secured us a location... We'll be meeting in the Forkey conference room in the Harrington Building http://maps.wpi.edu/map/?id=609#!s/key=Harrington Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Meeting Reminder Thursday May 14th 2015!
by Tim Keller May 12, 2015

May 12, 2015

Hey Everybody, We've got a meeting this Thursday! We've been tossing around talking about ZFS on linux and 3D printing. I haven't heard back from Chuck about where the meeting is going to be held yet. Does anybody have a preference on a topic? When: Thursday May 14th, 2015 @ 7pm Where: WPI (somewhere!) What: Either ZFS on linux or 3d printing. Refreshments: The usual! Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Contacts-Address Books
by The Hammer May 9, 2015

May 9, 2015

Hello Everyone, Since it's been quite here on the e-list, I figured I'd ask a non-technical question? Can anyone recommend a good contact/address book program for off line use? One that has a good export/back up function (preferably backing up as text) I've google searched it, and did not get far with that. Ron

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Is mail working?
by Tim Keller May 8, 2015

May 8, 2015

This list seems very quiet... -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Next Meeting May 14th, 2015!
by Tim Keller May 5, 2015

May 5, 2015

Hey Gang, The next meeting is on the 14th. We still don't have a speaker lined up. I know there was some interest in ZFS vs. XFS vs. JFS. I'd expressed some interest in 3d printing and what OSS software was on the market. Chunk, do you have an alternative location lined up for us? Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Beaglebone Black
by Andy Stewart May 1, 2015

May 1, 2015

Hi Everybody, I would like to know if any proprietary binary blobs are required to use a Beaglebone Black. According to my findings, the Raspberry Pi has a proprietary binary blob involved with booting the machine, and also controlling the video. It wasn't so easy to find this information. I would prefer to use such a board with no proprietary software. That's why I'm considering the Beaglebone Black. Does anybody know the definitive answer? I've searched a lot of websites to no avail. Thanks! Andy -- Andy Stewart (KB1OIQ) Founder: Worcester Linux Users' Group Founder: Chelmsford Linux Meetup Group President: PART of Westford, MA (WB1GOF)

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ZFS on Linux vs. BTRFS or stick with EXT4?
by Chuck Anderson April 30, 2015

April 30, 2015

I'm migrating to new large drives and would lke to take advantage of a filesystem that has integrated data and metadata checksums. How well does ZFS on Linux really work? What is the current status of BTRFS? Which one would you trust your precious data to? I've been out of the loop lately... This would be a great meeting topic! "How to set up ZFS on Linux and/or BTRFS". Any takers?

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