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Re: [Wlug] video from Identity Management, FreeIPA, and Kerberos talk
by Chuck Anderson 05 Apr '17

05 Apr '17

Someone tried to download a "high" quality file. Sorry there is nothing but this "low" quality one available right now. I might be able to make a higher quality one, but it takes like 4-8 hours for each try, and I figured the video quality isn't that important--just use the PDF slides with this 278MB video file. The audio should be good quality. On Wed, Apr 05, 2017 at 04:38:24PM -0400, Tim Keller wrote: > Nice!!! > > On Wed, Apr 5, 2017 at 4:07 PM, Chuck Anderson <cra(a)wpi.edu> wrote: > > > It only took me a year and a half, but I finally was able to get the > > 27gig AVCHD files from the video camera converted to a usable video > > file format. Please find the video (and slides) here: > > > > http://www.wlug.org/ > > > > December 10, 2015 - Dmitri Pal, Red Hat, Inc. - Identity Management, > > FreeIPA, and Kerberos (slides) (video) > > > > Direct links: > > > > http://www.wlug.org/files/Identity%20Management%20for% > > 20Modern%20Infrastructure%20(WPI)%20low.mp4 > > > > http://www.wlug.org/files/Identity%20Management%20for% > > 20Modern%20Infrastructure%20(WPI).pdf

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Re: [Wlug] video from Identity Management, FreeIPA, and Kerberos talk
by Tim Keller 05 Apr '17

05 Apr '17

Nice!!! On Wed, Apr 5, 2017 at 4:07 PM, Chuck Anderson <cra(a)wpi.edu> wrote: > It only took me a year and a half, but I finally was able to get the > 27gig AVCHD files from the video camera converted to a usable video > file format. Please find the video (and slides) here: > > http://www.wlug.org/ > > December 10, 2015 - Dmitri Pal, Red Hat, Inc. - Identity Management, > FreeIPA, and Kerberos (slides) (video) > > Direct links: > > http://www.wlug.org/files/Identity%20Management%20for% > 20Modern%20Infrastructure%20(WPI)%20low.mp4 > > http://www.wlug.org/files/Identity%20Management%20for% > 20Modern%20Infrastructure%20(WPI).pdf > _______________________________________________ > 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".

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video from Identity Management, FreeIPA, and Kerberos talk
by Chuck Anderson 05 Apr '17

05 Apr '17

It only took me a year and a half, but I finally was able to get the 27gig AVCHD files from the video camera converted to a usable video file format. Please find the video (and slides) here: http://www.wlug.org/ December 10, 2015 - Dmitri Pal, Red Hat, Inc. - Identity Management, FreeIPA, and Kerberos (slides) (video) Direct links: http://www.wlug.org/files/Identity%20Management%20for%20Modern%20Infrastruc… http://www.wlug.org/files/Identity%20Management%20for%20Modern%20Infrastruc…

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Ideas for next meeting (April 13th)
by Tim Keller 04 Apr '17

04 Apr '17

Hey Gang, A couple of ideas have been bandied about for the next meeting. 1. A round table discussion regarding internet security. 2. glusterfs. This is a distributed clustering filesystem that lets you tie a bunch of systems into a single cohesive filesystem. 3. ? If people have ideas, I'd love to hear them. I made a list at the last meeting but I don't have it on me... Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Re: [Wlug] (no subject)
by Tim Keller 29 Mar '17

29 Mar '17

Lustre solves the problem by getting out of the way. The metadata server simply tells the client on which of the nodes the pieces of the file resides. Reading the documentation, when it comes to Lustre, split brain can't happen because the moment any of the meta controllers go offline, the whole thing stops. Definitely with ZFS if you don't start with a plan you're going to have a bad day. The current design for a node is a 1U HP DL360G7 server with ~144 or 288GB of ram. Internal storage is handled by the smart array controller. The next one I build I think I'm going to buy a 9200-8i and route the cables so that all the internal and external storage is JBOD. My current HBA card dejour for external storage is the LSI 9200-8e. As for external JBOD enclosures, there are LOTS of choices. Generally I've stuck with the promise J610s. It's essentially the "expansion" cabinet for a "smart" promise array. It's beauty is in it's abject stupidity. As for drives, currently all my stuff is running 4TB Seagate SAS drives. For "mainline" nodes, I configure them as raid10 pools. This gets me ~29TB of storage per pool For "backup" nodes, I configure them as raidz2 pools. All my backup nodes are 32 disk boxes so the pools are 116TB. Obviously this design is a balance between cost and performance. If I need more slots I'll use a 380 instead of 360 and I'll stick in an Intel X540-T2 10GigE card. It's fun to imagine if you scaled up the disks and the interconnects what a filesystem would look like. Tim. On Tue, Mar 28, 2017 at 8:45 PM, John Stoffel <john(a)stoffel.org> wrote: > > Tim> My first experiment was simply setting up a distributed volume > Tim> that needs to have each of the "bricks" as they refer to them as > Tim> being reliable members. > > Nice. > > Tim> However you can configure it to mirror and strip across the > Tim> "bricks" so they don't have to be. In fact you can setup > Tim> stripped mirrors, etc. > > That would be safer for sure. I can just see a network problem taking > down a bunch of bricks and leading to a split-brain situation if > you're not careful. > > Tim> I've now got a number of these storage nodes as I call them. It > Tim> generally consists of a 1U box, stuffed full of ram, connected to > Tim> a JBOD chassis full of disks. I then use ZFS to create storage > Tim> pools. > > So I used to like ZFS and think it was "da bomb" but after using it > for several years, and esp after using the ZFS appliances from > Sun/Oracle, I'm not really enamored of the entire design any more. > > I think they have some great ideas in terms of checksumming all the > files and metadata. But the layering (or lack of) disks/devices > inside zpools just drives me nuts. It's just really inflexible and > can get you in trouble if you're not careful. > > Tim> The problem with this is that your scale is limited to the size > Tim> of a single "node" and while you can play games with autofs it's > Tim> not a cohesive filesystem. > > Can you give some more details of your setup? > > Tim> This solves that problem. My only complaint is that it's fuse based. > > Yeah, not really high performance at the end of the day. > > Tim> Lustre is a kernel loaded filesystem that'll do the same thing as > Tim> gluster. However, it doesn't have any of the redunancy stuff, > Tim> it simply assumes your underlying storage is reliable. > > This is the key/kicker for all these systems. > > I'm waiting for someone to come up with an opensource sharding system > where you use erasure codes for low-level block storage so that you > have alot of the RAID6 advantages, but even more reliability AND > speed. But it's also a hard hard problem space to get right. > > Thanks for sharing! > John > > _______________________________________________ > 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".

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Re: [Wlug] (no subject)
by John Stoffel 29 Mar '17

29 Mar '17

Tim> My first experiment was simply setting up a distributed volume Tim> that needs to have each of the "bricks" as they refer to them as Tim> being reliable members. Nice. Tim> However you can configure it to mirror and strip across the Tim> "bricks" so they don't have to be. In fact you can setup Tim> stripped mirrors, etc. That would be safer for sure. I can just see a network problem taking down a bunch of bricks and leading to a split-brain situation if you're not careful. Tim> I've now got a number of these storage nodes as I call them. It Tim> generally consists of a 1U box, stuffed full of ram, connected to Tim> a JBOD chassis full of disks. I then use ZFS to create storage Tim> pools. So I used to like ZFS and think it was "da bomb" but after using it for several years, and esp after using the ZFS appliances from Sun/Oracle, I'm not really enamored of the entire design any more. I think they have some great ideas in terms of checksumming all the files and metadata. But the layering (or lack of) disks/devices inside zpools just drives me nuts. It's just really inflexible and can get you in trouble if you're not careful. Tim> The problem with this is that your scale is limited to the size Tim> of a single "node" and while you can play games with autofs it's Tim> not a cohesive filesystem. Can you give some more details of your setup? Tim> This solves that problem. My only complaint is that it's fuse based. Yeah, not really high performance at the end of the day. Tim> Lustre is a kernel loaded filesystem that'll do the same thing as Tim> gluster. However, it doesn't have any of the redunancy stuff, Tim> it simply assumes your underlying storage is reliable. This is the key/kicker for all these systems. I'm waiting for someone to come up with an opensource sharding system where you use erasure codes for low-level block storage so that you have alot of the RAID6 advantages, but even more reliability AND speed. But it's also a hard hard problem space to get right. Thanks for sharing! John

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Re: [Wlug] (no subject)
by Tim Keller 28 Mar '17

28 Mar '17

My first experiment was simply setting up a distributed volume that needs to have each of the "bricks" as they refer to them as being reliable members. However you can configure it to mirror and strip across the "bricks" so they don't have to be. In fact you can setup stripped mirrors, etc. I've now got a number of these storage nodes as I call them. It generally consists of a 1U box, stuffed full of ram, connected to a JBOD chassis full of disks. I then use ZFS to create storage pools. The problem with this is that your scale is limited to the size of a single "node" and while you can play games with autofs it's not a cohesive filesystem. This solves that problem. My only complaint is that it's fuse based. Lustre is a kernel loaded filesystem that'll do the same thing as gluster. However, it doesn't have any of the redunancy stuff, it simply assumes your underlying storage is reliable. Tim. On Tue, Mar 28, 2017 at 11:08 AM, John Stoffel <john(a)stoffel.org> wrote: > > Tim> The subject for that was supposed to be "Fun with glusterfs" > Tim> On Tue, Mar 28, 2017 at 10:51 AM, Tim Keller <turbofx(a)gmail.com> > wrote: > > Tim> I've been messing around with "glusterfs" and it's pretty cool. > > Tim> I build 3 machine running RHEL7.2 each with an extra 250GB disk. > > Tim> I then setup a filesystem that stripes across all three machines. > > Tim> So it looks like a single 750GB filesystem. Over gigE I'm seeing > okay > Tim> performance ~50MB/s. > > Tim> Cool stuff. Next on my list of filesystems to play with it > Lustre. > > Sounds neat. Does glusterfs support RAID5/6 or does it depend on the > underlying nodes to be reliable? > > _______________________________________________ > 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".

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Re: [Wlug] (no subject)
by John Stoffel 28 Mar '17

28 Mar '17

Tim> The subject for that was supposed to be "Fun with glusterfs" Tim> On Tue, Mar 28, 2017 at 10:51 AM, Tim Keller <turbofx(a)gmail.com> wrote: Tim> I've been messing around with "glusterfs" and it's pretty cool. Tim> I build 3 machine running RHEL7.2 each with an extra 250GB disk. Tim> I then setup a filesystem that stripes across all three machines. Tim> So it looks like a single 750GB filesystem. Over gigE I'm seeing okay Tim> performance ~50MB/s. Tim> Cool stuff. Next on my list of filesystems to play with it Lustre. Sounds neat. Does glusterfs support RAID5/6 or does it depend on the underlying nodes to be reliable?

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(no subject)
by Tim Keller 28 Mar '17

28 Mar '17

I've been messing around with "glusterfs" and it's pretty cool. I build 3 machine running RHEL7.2 each with an extra 250GB disk. I then setup a filesystem that stripes across all three machines. So it looks like a single 750GB filesystem. Over gigE I'm seeing okay performance ~50MB/s. Cool stuff. Next on my list of filesystems to play with it Lustre. Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Re: [Wlug] awk help
by Mike Peckar 15 Mar '17

15 Mar '17

Nathan’s solution worked, thanks to all for the replies. I do feel better this was not a solution that could fit into a tweet. Theo’s is elegant, but there are spaces in the data, and John’s would have work, but I can’t use perl in the environment I’m working in. Mike awk -F, '{linecount[$3]++;tmp=dup[$3];if(length(tmp)==0){dup[$3]=$0}else{dup[$3]=dup[$3]"\n"$0}} END {for (count in linecount){if(linecount[count]>1){print dup[count]}}}' Hopefully this is not a homework problem. On Mon, Mar 13, 2017 at 7:20 PM, Mike Peckar <fog(a)fognet.com> wrote: Hey now, folks, This seemed like it should be simple, but I’m at wits end. I simply want to find duplicates in the third column of a csv file, and output the duplicate line _and_ the original line that matched it. There’s a million examples out there that will output just the duplicate but not both. In the data below, I’m looking for lines that match in the 3rd column… Normal,Server,xldspntc02,,10.33.52.185, Normal,Server,xldspntc02,,10.33.52.186, Normal,Server,xldspntc04,,10.33.52.187, Normal,Server,xldspntcs01,10.33.16.198, Normal,Server,xldspntcs01,,10.33.16.199, Normal,Server,xldsps01,10.33.16.162, Normal,Server,xldsps02,10.33.16.163, My desired output would be: Normal,Server,xldspntc02,,10.33.52.185, Normal,Server,xldspntc02,,10.33.52.186, Normal,Server,xldspntcs01,10.33.16.198, Normal,Server,xldspntcs01,,10.33.16.199, $ awk -F, 'dup[$3]++' file.csv I played around with the prev variable, but could not pumb it out fully, e.g { print prev } Mike _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug -- Nathan Panike

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Re: [Wlug] awk help
by John Stoffel 15 Mar '17

15 Mar '17

>>>>> "Theo" == Theo Van Dinter <felicity(a)kluge.net> writes: Theo> Assuming there's no spaces in the csv, you could do: Theo> awk -F, '{print $0,$3}' | sort -k2 | uniq -D -f 1 | awk '{print $1}' Nice use of 'uniq -f 1' to re-read the file and do the de-duping. Theo> $ cat 1 Theo> Normal,Server,xldspntcs01,10.33.16.198, Theo> Normal,Server,xldspntc02,,10.33.52.185, Theo> Normal,Server,xldsps01,10.33.16.162, Theo> Normal,Server,xldspntc04,,10.33.52.187, Theo> Normal,Server,xldspntcs01,,10.33.16.199, Theo> Normal,Server,xldsps02,10.33.16.163, Theo> Normal,Server,xldspntc02,,10.33.52.186, Theo> $ cat 1 | awk -F, '{print $0,$3}' | sort -k2 | uniq -D -f 1 | awk '{print $1}' Theo> Normal,Server,xldspntc02,,10.33.52.185, Theo> Normal,Server,xldspntc02,,10.33.52.186, Theo> Normal,Server,xldspntcs01,,10.33.16.199, Theo> Normal,Server,xldspntcs01,10.33.16.198, Theo> On Mon, Mar 13, 2017 at 7:20 PM, Mike Peckar <fog(a)fognet.com> wrote: Theo> Hey now, folks, Theo> Theo> This seemed like it should be simple, but I’m at wits end. I simply Theo> want to find duplicates in the third column of a csv file, and output Theo> the duplicate line _and_ the original line that matched it. There’s a Theo> million examples out there that will output just the duplicate but not Theo> both. Theo> Theo> In the data below, I’m looking for lines that match in the 3^rd column… Theo> Theo> Normal,Server,xldspntc02,,10.33.52.185, Theo> Normal,Server,xldspntc02,,10.33.52.186, Theo> Normal,Server,xldspntc04,,10.33.52.187, Theo> Normal,Server,xldspntcs01,10.33.16.198, Theo> Normal,Server,xldspntcs01,,10.33.16.199, Theo> Normal,Server,xldsps01,10.33.16.162, Theo> Normal,Server,xldsps02,10.33.16.163, Theo> Theo> My desired output would be: Theo> Theo> Normal,Server,xldspntc02,,10.33.52.185, Theo> Normal,Server,xldspntc02,,10.33.52.186, Theo> Normal,Server,xldspntcs01,10.33.16.198, Theo> Normal,Server,xldspntcs01,,10.33.16.199, Theo> Theo> $ awk -F, 'dup[$3]++' file.csv Theo> Theo> I played around with the prev variable, but could not pumb it out Theo> fully, e.g { print prev } Theo> Theo> Mike Theo> _______________________________________________ Theo> Wlug mailing list Theo> Wlug(a)mail.wlug.org Theo> http://mail.wlug.org/mailman/listinfo/wlug Theo> _______________________________________________ Theo> Wlug mailing list Theo> Wlug(a)mail.wlug.org Theo> http://mail.wlug.org/mailman/listinfo/wlug

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Re: [Wlug] awk help
by Theo Van Dinter 15 Mar '17

15 Mar '17

Assuming there's no spaces in the csv, you could do: awk -F, '{print $0,$3}' | sort -k2 | uniq -D -f 1 | awk '{print $1}' eg: $ cat 1 Normal,Server,xldspntcs01,10.33.16.198, Normal,Server,xldspntc02,,10.33.52.185, Normal,Server,xldsps01,10.33.16.162, Normal,Server,xldspntc04,,10.33.52.187, Normal,Server,xldspntcs01,,10.33.16.199, Normal,Server,xldsps02,10.33.16.163, Normal,Server,xldspntc02,,10.33.52.186, $ cat 1 | awk -F, '{print $0,$3}' | sort -k2 | uniq -D -f 1 | awk '{print $1}' Normal,Server,xldspntc02,,10.33.52.185, Normal,Server,xldspntc02,,10.33.52.186, Normal,Server,xldspntcs01,,10.33.16.199, Normal,Server,xldspntcs01,10.33.16.198, On Mon, Mar 13, 2017 at 7:20 PM, Mike Peckar <fog(a)fognet.com> wrote: > Hey now, folks, > > > > This seemed like it should be simple, but I’m at wits end. I simply want > to find duplicates in the third column of a csv file, and output the > duplicate line _*and*_ the original line that matched it. There’s a > million examples out there that will output just the duplicate but not both. > > > > In the data below, I’m looking for lines that match in the 3rd column… > > > > Normal,Server,xldspntc02,,10.33.52.185, > > Normal,Server,xldspntc02,,10.33.52.186, > > Normal,Server,xldspntc04,,10.33.52.187, > > Normal,Server,xldspntcs01,10.33.16.198, > > Normal,Server,xldspntcs01,,10.33.16.199, > > Normal,Server,xldsps01,10.33.16.162, > > Normal,Server,xldsps02,10.33.16.163, > > > > My desired output would be: > > > > Normal,Server,xldspntc02,,10.33.52.185, > > Normal,Server,xldspntc02,,10.33.52.186, > > Normal,Server,xldspntcs01,10.33.16.198, > > Normal,Server,xldspntcs01,,10.33.16.199, > > > > $ awk -F, 'dup[$3]++' file.csv > > > > I played around with the prev variable, but could not pumb it out fully, > e.g { print prev } > > > > Mike > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

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Re: [Wlug] awk help
by John Stoffel 14 Mar '17

14 Mar '17

>>>>> "Mike" == Mike Peckar <fog(a)fognet.com> writes: Mike> This seemed like it should be simple, but I’m at wits end. I Mike> simply want to find duplicates in the third column of a csv Mike> file, and output the duplicate line _and_ the original line Mike> that matched it. There’s a million examples out there that Mike> will output just the duplicate but not both. Mike> In the data below, I’m looking for lines that match in the 3^rd column… The sorting part is easy... sort -k 3 -t "," <file> Now to find the duplicates... I'd probably jump to a perl script: perl -e '@a=(<>);foreach @a {@t=split(",",$_) {push @{$t{$t[2]}},$_; } foreach sort (keys %t) { if ($#{$t{$_}} > 0) { print @{$t{$_}}, "\n";}}' Should also do the right thing. First it splits into keys, stuffs the line into an assoc array of arrays. Then it sorts the assoc array and prints out those with more than one entry in it. Admittedly done off the top of my head, without any actual testing. :-) Mike> Normal,Server,xldspntc02,,10.33.52.185, Mike> Normal,Server,xldspntc02,,10.33.52.186, Mike> Normal,Server,xldspntc04,,10.33.52.187, Mike> Normal,Server,xldspntcs01,10.33.16.198, Mike> Normal,Server,xldspntcs01,,10.33.16.199, Mike> Normal,Server,xldsps01,10.33.16.162, Mike> Normal,Server,xldsps02,10.33.16.163, Mike> My desired output would be: Mike> Normal,Server,xldspntc02,,10.33.52.185, Mike> Normal,Server,xldspntc02,,10.33.52.186, Mike> Normal,Server,xldspntcs01,10.33.16.198, Mike> Normal,Server,xldspntcs01,,10.33.16.199, Mike> $ awk -F, 'dup[$3]++' file.csv Mike> I played around with the prev variable, but could not pumb it out fully, Mike> e.g { print prev } Mike> Mike Mike> _______________________________________________ Mike> Wlug mailing list Mike> Wlug(a)mail.wlug.org Mike> http://mail.wlug.org/mailman/listinfo/wlug

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Re: [Wlug] awk help
by Nathan W. Panike 14 Mar '17

14 Mar '17

This seems to work: awk -F, '{linecount[$3]++;tmp=dup[$3];if(length(tmp)==0){dup[$3]=$0}else{dup[$3]=dup[$3]"\n"$0}} END {for (count in linecount){if(linecount[count]>1){print dup[count]}}}' Hopefully this is not a homework problem. On Mon, Mar 13, 2017 at 7:20 PM, Mike Peckar <fog(a)fognet.com> wrote: > Hey now, folks, > > > > This seemed like it should be simple, but I’m at wits end. I simply want > to find duplicates in the third column of a csv file, and output the > duplicate line _*and*_ the original line that matched it. There’s a > million examples out there that will output just the duplicate but not both. > > > > In the data below, I’m looking for lines that match in the 3rd column… > > > > Normal,Server,xldspntc02,,10.33.52.185, > > Normal,Server,xldspntc02,,10.33.52.186, > > Normal,Server,xldspntc04,,10.33.52.187, > > Normal,Server,xldspntcs01,10.33.16.198, > > Normal,Server,xldspntcs01,,10.33.16.199, > > Normal,Server,xldsps01,10.33.16.162, > > Normal,Server,xldsps02,10.33.16.163, > > > > My desired output would be: > > > > Normal,Server,xldspntc02,,10.33.52.185, > > Normal,Server,xldspntc02,,10.33.52.186, > > Normal,Server,xldspntcs01,10.33.16.198, > > Normal,Server,xldspntcs01,,10.33.16.199, > > > > $ awk -F, 'dup[$3]++' file.csv > > > > I played around with the prev variable, but could not pumb it out fully, > e.g { print prev } > > > > Mike > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > -- Nathan Panike

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awk help
by Mike Peckar 13 Mar '17

13 Mar '17

Hey now, folks, This seemed like it should be simple, but I’m at wits end. I simply want to find duplicates in the third column of a csv file, and output the duplicate line _and_ the original line that matched it. There’s a million examples out there that will output just the duplicate but not both. In the data below, I’m looking for lines that match in the 3rd column… Normal,Server,xldspntc02,,10.33.52.185, Normal,Server,xldspntc02,,10.33.52.186, Normal,Server,xldspntc04,,10.33.52.187, Normal,Server,xldspntcs01,10.33.16.198, Normal,Server,xldspntcs01,,10.33.16.199, Normal,Server,xldsps01,10.33.16.162, Normal,Server,xldsps02,10.33.16.163, My desired output would be: Normal,Server,xldspntc02,,10.33.52.185, Normal,Server,xldspntc02,,10.33.52.186, Normal,Server,xldspntcs01,10.33.16.198, Normal,Server,xldspntcs01,,10.33.16.199, $ awk -F, 'dup[$3]++' file.csv I played around with the prev variable, but could not pumb it out fully, e.g { print prev } Mike

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Re: [Wlug] (for meeting projectors) laptops,VGA-out,linux....
by Chuck Anderson 10 Mar '17

10 Mar '17

On Fri, Mar 10, 2017 at 10:37:53AM -0500, Tim Keller wrote: > Thanks for doing some great digging on the projector stuff.. It's only > 2017... Projectors should just *work*. They do "just work" in some OSes/desktop environments.

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Re: [Wlug] (for meeting projectors) laptops,VGA-out,linux....
by Tim Keller 10 Mar '17

10 Mar '17

Playing with Cinnamon last night I'm going to take the dive and throw it on a RHEL7 VM and see if I like it better than Mate. If so, I'll swap over my desktop and see... Thanks for doing some great digging on the projector stuff.. It's only 2017... Projectors should just *work*. On Fri, Mar 10, 2017 at 9:12 AM, Doug Mildram <dmildram(a)gmail.com> wrote: > doug> Thanks Tim for bringing a functional laptop w/linux for last night's > meeting. Our VGA-out projector worked fine as he installed a linux Mint VM > (Mate Cinnamon) onto it. > > When that finished, I wanted to show/compare Mint Mate, which I had > already on my laptop. > > When I unplugged Tim's laptop from VGA-out and tried my own thinkpad > running Mint Mate (dualbooted, my alternate OS).....well,.....chirp. > > The projector stopped projecting. My Fn-F7 key seemed to be trying to > cycle thru the blind toggles/choices (Duplicate display? screen-only? > VGA-only might expect), but no video came out, I had to give up, not having > tried VGA-out ever while running linux on my laptop. We put Tim's back > onto VGA-out, and it also seemed dead, but we chose not to fight it, > meeting being close enough to stop caring about projector, and it "wasnt a > proud moment" for me. > > SO I WENT HOME and plugged my (same) laptop into my TV's VGA-in port. > Started by booting win7. I'd never noticed a detail : at WHICH POINT does > this start working....should I expect to see the dualboot/GRUB menu on TV? > Apparently not. Soon enough though, Win7 (the OS preinstalled by > Lenovo/thinkpad) came up and VGA-out/TV started working as usual. > (somewhere AFTER "Resuming Windows", it starts working). > To control VGA-out, Fn-F7 works ...I've got (4) choices: Duplicate, > Extend(laptop-screen=#1, TV-VGAout=screen2), Projector Only (turns off > laptop display), and Disconnect Projector (only laptop display ON). No > doubt (i surmise), thanks to windows drivers. > > Feels like I learned: OS controls VGA-out (somehow naively I was inclined > to believe this was more of an OS-independent hardware function). > > OK, now rebooted laptop/win7 to try Linux Mint from a win7 state with > "Duplicate" working. "Shutting down Windows" displayed....laptop goes thru > boot/BIOS?...TV is blank now, I've learned to expect this....Linux kernel > boots, and I see some of the minimal console text messages as usual ALSO ON > TV, laptop-screen AND TV quickly go to graphical mode, also displaying the > Mate background... > > and this is where I was the most surprised. > > TV/VGA-out appeared "frozen' with the Mate background, appearing much like > my laptop screen BUT MINUS anything else (no bottom launch/status/"panel" > bar. Whatever I launch on my laptop screen, does not appear on VGA-out. > Fascinating! > > Wed eve late, at my house, I could swear Fn-F7 still wasnt doing anything. > But this Thurs AM, it DOES start working a bit (same 4 choices, but blind, > and it's strange. TV/VGA-out doesnt show EVERYTHING). > I wonder if I'd rebooted at the meeting, would that have helped, probably. > Today I play with it some more (ALT-F2 helps when I'm in that semi-blind > VGA-out situation, getting SOME things to show on TV) even though I'm not > likely to use this feature much?ever? at home, unless I break a leg. > > Caveat, practice what you bring for meetings to project-OUT! > HDMI is also an option in our WPI meeting/conf rms if you have it. > > > ---trivia for Mate interest... > (Mate = lightweight alternate to Cinnamon. > Their start/launch menus are different, and I can find good stuff in > Mate's Control Center. Cinnamon's Control center looks like this: > https://docs.google.com/file/d/0B2V313X0LzmQclJCVkI5aFhIeDA/edit > > Couldnt find a good Mate comparison Control Center screenshot > (not sharing some high-ad google'd choices) > but I did like this decent page mostly cuz i love keyb shortcuts: > > http://securitronlinux.com/bejiitaswrath/some-useful- > tips-for-the-linux-mate-desktop/ > where I learned > CTL-ALT-d (lowercase "d" not DEL, which offers to reboot) > .....lowers-or-raises what you're doing, a great "quick hide from > over-shoulder" ninja move. (sorry to degrade tricks/skill(s) of a Real > Ninja) > > Stay warm! --doug > > > _______________________________________________ > 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".

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(for meeting projectors) laptops,VGA-out,linux....
by Doug Mildram 10 Mar '17

10 Mar '17

doug> Thanks Tim for bringing a functional laptop w/linux for last night's meeting. Our VGA-out projector worked fine as he installed a linux Mint VM (Mate Cinnamon) onto it. When that finished, I wanted to show/compare Mint Mate, which I had already on my laptop. When I unplugged Tim's laptop from VGA-out and tried my own thinkpad running Mint Mate (dualbooted, my alternate OS).....well,.....chirp. The projector stopped projecting. My Fn-F7 key seemed to be trying to cycle thru the blind toggles/choices (Duplicate display? screen-only? VGA-only might expect), but no video came out, I had to give up, not having tried VGA-out ever while running linux on my laptop. We put Tim's back onto VGA-out, and it also seemed dead, but we chose not to fight it, meeting being close enough to stop caring about projector, and it "wasnt a proud moment" for me. SO I WENT HOME and plugged my (same) laptop into my TV's VGA-in port. Started by booting win7. I'd never noticed a detail : at WHICH POINT does this start working....should I expect to see the dualboot/GRUB menu on TV? Apparently not. Soon enough though, Win7 (the OS preinstalled by Lenovo/thinkpad) came up and VGA-out/TV started working as usual. (somewhere AFTER "Resuming Windows", it starts working). To control VGA-out, Fn-F7 works ...I've got (4) choices: Duplicate, Extend(laptop-screen=#1, TV-VGAout=screen2), Projector Only (turns off laptop display), and Disconnect Projector (only laptop display ON). No doubt (i surmise), thanks to windows drivers. Feels like I learned: OS controls VGA-out (somehow naively I was inclined to believe this was more of an OS-independent hardware function). OK, now rebooted laptop/win7 to try Linux Mint from a win7 state with "Duplicate" working. "Shutting down Windows" displayed....laptop goes thru boot/BIOS?...TV is blank now, I've learned to expect this....Linux kernel boots, and I see some of the minimal console text messages as usual ALSO ON TV, laptop-screen AND TV quickly go to graphical mode, also displaying the Mate background... and this is where I was the most surprised. TV/VGA-out appeared "frozen' with the Mate background, appearing much like my laptop screen BUT MINUS anything else (no bottom launch/status/"panel" bar. Whatever I launch on my laptop screen, does not appear on VGA-out. Fascinating! Wed eve late, at my house, I could swear Fn-F7 still wasnt doing anything. But this Thurs AM, it DOES start working a bit (same 4 choices, but blind, and it's strange. TV/VGA-out doesnt show EVERYTHING). I wonder if I'd rebooted at the meeting, would that have helped, probably. Today I play with it some more (ALT-F2 helps when I'm in that semi-blind VGA-out situation, getting SOME things to show on TV) even though I'm not likely to use this feature much?ever? at home, unless I break a leg. Caveat, practice what you bring for meetings to project-OUT! HDMI is also an option in our WPI meeting/conf rms if you have it. ---trivia for Mate interest... (Mate = lightweight alternate to Cinnamon. Their start/launch menus are different, and I can find good stuff in Mate's Control Center. Cinnamon's Control center looks like this: https://docs.google.com/file/d/0B2V313X0LzmQclJCVkI5aFhIeDA/edit Couldnt find a good Mate comparison Control Center screenshot (not sharing some high-ad google'd choices) but I did like this decent page mostly cuz i love keyb shortcuts: http://securitronlinux.com/bejiitaswrath/some-useful-tips-for-the-linux-mat… where I learned CTL-ALT-d (lowercase "d" not DEL, which offers to reboot) .....lowers-or-raises what you're doing, a great "quick hide from over-shoulder" ninja move. (sorry to degrade tricks/skill(s) of a Real Ninja) Stay warm! --doug

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Reminder! Meeting TONIGHT March 9th, 2017! Topics: KVM, Virtualized windows apps, Linux Mint!
by Tim Keller 09 Mar '17

09 Mar '17

Hey Gang, First the important details! Location: Rm 331 (Hagglund Room) @ 7PM Topic: read below... Tonight we've got a meeting! After the last meeting a couple of people were asking me questions about KVM (Kernel based Virtual Machine). New member Al Reinhart asked me a question about the best ways to run windows apps on linux, either via wine or through KVM / Oracle Virtual Box. He also mentioned Linux.Encoder (the first linux ransomware) which I didn't even know exists. Long time member Doug Mildram also wrote me about Linux Mint. A distribution I know quite well! They'll be some conversation and we'll kick off an install and talk about it's merits as a greate distribution. As usual, there'll be refreshments and snacks and afterwards we'll head to Tech for pizza! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Re: [Wlug] Reminder! Meeting March 9th 2017 at 7pm!
by Al Reinhart 08 Mar '17

08 Mar '17

Tim, Another newbie request. Tomorrow night can you spend a few minutes talking about running Windows apps on Linux, i.e., Wine and virtual machines (my impression is VirtualBox seem to be the most popular). Last month the issue of ransomware came up and the consensus was there is none on Linux. In my wanderings around the web I came across Linux.Encoder as Linux ransomware: https://en.wikipedia.org/wiki/Linux.Encoder.1 Thanks, Al On 03/06/2017 08:55 PM, Tim Keller wrote: > Hey Gang, > > This is a reminder that we've got a meeting March 9th, 2017! > Location: Campus Center Rm 301 (Hagglund Room) > Topic: To Be Decided! > > Honestly, this meeting kind of crept up on me! If there's something > that someone has a burning desire to talk about let me know! > > If people are interested I could give a quick talk about ansible. > > Snacks and Refreshments will be provided! > > Afterwards we'll head down to Tech Pizza to continue the conversation! > > Later, > 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 -- *Al Reinhart* /DisCom Systems/ Phone: (508)869-6417 eMail: Reinhart(a)DisCom.com *www.DisCom.com*

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Reminder! Meeting March 9th 2017 at 7pm!
by Tim Keller 07 Mar '17

07 Mar '17

Hey Gang, This is a reminder that we've got a meeting March 9th, 2017! Location: Campus Center Rm 301 (Hagglund Room) Topic: To Be Decided! Honestly, this meeting kind of crept up on me! If there's something that someone has a burning desire to talk about let me know! If people are interested I could give a quick talk about ansible. Snacks and Refreshments will be provided! Afterwards we'll head down to Tech Pizza to continue the conversation! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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WLUG Meeting TONIGHT! Feb. 16th 2017 Rm 331 (Hagglund) iscsi / gfs2 / filesystems / etc!
by Tim Keller 16 Feb '17

16 Feb '17

Hey Gang, Our rescheduled meeting is tonight! Feb 16th @ 7pm. The location is changed a bit, we're going to be in the Hagglund Rm (rm 301) in the student center. Go to the top of the stairs and go to the right instead of left. I'm going to be speaking about storage protocols, ending up on iscsi. I'm then going to talk about gfs2 in particular and then show gfs2 working across two nodes. We're also going to talk in general about filesystems, LVM, partitioning, etc. I expect that latter topic is going to be come a general group topic. There will be snacks and refreshments (coke only) and afterwards we'll head down to Tech Pizza! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Reminder! Meeting Feb 16th 2017 Subject: iscsi / gfs2
by Tim Keller 14 Feb '17

14 Feb '17

Hey Gang, Our rescheduled meeting is going to be on Feb 16th @ 7pm. The location is changed a bit, we're going to be in the Hagglund Rm (rm 301) in the student center. I'm going to do my talk regarding storage protocols focusing on iscsi and doing a demo of gfs2. I might end up only being a talk as my laptop is currently misbehaving, but we'll see. There will be snacks and refreshments and afterwards we'll head down to Tech! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Meeting cancelled tonight... Reschedule to Feb. 16 2017
by Tim Keller 09 Feb '17

09 Feb '17

Hey Gang, I going to cancel the meeting for tonight. With the snow storm and the travel ban, I don't think it makes any sense. Everybody stay safe. Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Reminder! Meeting Feb 9th at 7pm! Topic: iscsi / GFS2 clustered filesystems.
by Tim Keller 07 Feb '17

07 Feb '17

Hey Gang, This is reminder that on Thursday Feb. 9th at 7pm, we've got a WLUG Meeting! Time/Date: See above Location: WPI Student Center Mid Century Room (rm 331) Topic: GFS2 / Clustered Filesystems (and associated technologies) I'm going to be speaking about the clustering filesystem GFS2 as well as the associated infrastructure to provide shared disk to multiple hosts. So this talk is going to be about the filesystem but also about iscsi/iser/fb/IB. This will be momentary deep dive into iscsi and then we'll come up for air and talk about GFS2. There will be refreshments and snacks provided and then we'll head down for pizza. I've heard there might be weather, we'll play it by ear. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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