March 2017 - luv-main

Viewing iView and flash
by Mark Trickett 27 Mar '17

27 Mar '17

Hello All, I have been told that I appear briefly in Bespoke on ABC TV, in particular seen on last Sunday the 19th. I have gone to the ABC TV website and gone for iView, or via the program guide, and tried to watch, only to have it stall complaining about flash being required. This is with ESR Firefox on 3.2.0-4-686-pae #1 SMP Debian 3.2.86-1 i686 GNU/Linux/Wheezy. I know some others do manage to use iView running Linux, comments about how appreciated, as would be someone grabbing and saving as a less unfriendly format, the latter even more appreciated. I will also look for a way to let the appropriate people at the ABC know that flash is inappropriate for many reasons, particularly the security vulnerabilities. Regards, Mark Trickett

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PCs
by Russell Coker 26 Mar '17

26 Mar '17

I could just give you a dual-core 64bit PC, at least 4G of RAM, and a pair of decent SATA disks in a RAID-1 configuration with the latest version of Debian installed if you can arrange transport for it. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Let's learn about Computer Science
by Russell Coker 24 Mar '17

24 Mar '17

This looks like something that will interest some LUV members. It seems to be aimed at beginners. Check out Let's learn about Computer Science http://meetu.ps/c/2SSpm/8BKq/d on Meetup -- Sent from my Nexus 6P with K-9 Mail.

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simple web proxy
by Russell Coker 22 Mar '17

22 Mar '17

Can anyone recommend a very simple web proxy that works reliably with apt-get (unlike Squid)? What I want is to just allow access to apt repositories and nothing else. Caching isn't really required as the bandwidth available has been steadily increasing rapidly while Debian package size has been increasing very slowly. I would consider any sort of proxy, if there's a socks proxy that supports white-listing acceptable domains and apt works well with socks then that would do. Just as long as it's easy to setup and likely to be secure. I have some virtual servers that don't need Internet access for any purpose other than updating Debian packages and which run some PHP code and other things that tends to call out to the Internet if permitted. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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talk about hyper-threading
by Russell Coker 21 Mar '17

21 Mar '17

After a conversation at the beginners meeting I think it would be good to have a talk about hyper-threading and other features of modern CPUs. Would anyone like to give such a talk? It doesn't require detailed knowledge, just a good general knowledge about PC architecture and a little bit of research. It would be a beginner to intermediate talk. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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node.js
by Andrew Pam 14 Mar '17

14 Mar '17

We've had a request for a beginners talk about programming with node.js. Are there any members who have used node and would be willing to talk about it? Please keep sending in suggestions for talks and other things you would like to do at our meetings! Thanks, Andrew

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Chrome notification pop-up location
by Toby Corkindale 10 Mar '17

10 Mar '17

I use Google Chrome, which supports letting websites send notifications as brief pop-ups on your screen. This works fine, except they always appear in the bottom-right corner of my right-hand monitor. I have two monitors, and the one on the right is kind of secondary, and the far right of it is out of my field of vision. Does anyone know how to control where notification pop-ups appear? I'm running KDE on Ubuntu 16.04. Cheers Toby

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rsync; how to preserve Windows permissions
by Bill Yang 09 Mar '17

09 Mar '17

Hi There, Thank you very much for all your comments and help with “rsync with multiple threads”. It was very helpful. I have found out that in my case, rsync with multiple threads did speed up a bit of file transfer process. This is the command I was using (run it with while loop, and define TARGET and THREADS in the script): find dir-name -maxdepth 1 -mindepth 1 -type d -print0 | xargs -n1 -0 -P$THREADS -I% rsync -a %/ $TARGET/% I now have another issue. Some of the files/directories I transferred from source storage server (Red Hat) are Windows files/directories (Those Windows files were backed up using a backup software). rsync didn’t preserve Windows permissions/ACLs when those files were transferred onto the target storage server (FreeBSD). Is there any way to instruct rsync to preserve Windows permissions/ACLs? Any suggestions would be appreciated. Thanks and Cheers, Bill

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DNS resolution weirdness whilst using OpenConnect
by Anthony 09 Mar '17

09 Mar '17

Sometimes, I have to use OpenConnect to connect into some VPNs (so much less nasty than the Cisco AnyConnect client for linux which insists on running a daemon in the background). Ubuntu 16.10 has it as a package I installed, and it connects fine. What goes screwy is DNS resolution... Sometimes, for no obvious reason, I can resolve internal hostnames that resolve to destinations reached by the host using things like the "host" command... ... but if I try to reach that same host via SSH using its hostname, it will say it can't resolve the host. I don't understand how the host command could behave differently to a program requesting DNS resolution? It had been a long time since I'd needed to fiddle with my resolv.conf, so I went to have a look, and was presented with some abhorrent mashup of dnsmasq, network managd and/or systemd and other things seemingly dynamically configuring stuff, but with no obvious way to figure out what the current settings were or how to influence them (insert rant here about the increasingly opaque way services are being configured in linux, with a decline in obvious CLI tools in lieu of monolith services that speak in tongues between themselves). OpenConnect uses the vpnc-scripts package to configure routing and name services. The routing seems to work ok, but I can't for the life of me figure out why DNS resolution would randomly not work across all apps... particularly the fact that within the same connection I can have DNS work and then not work again. Is dhclient perhaps overriding things when lease is up? Though that wouldn't explain why sometimes it fails off the bat. Anyone else use OpenConnect? Have you had it behave weirdly? I mean, I could just go through I guess and strip back a lot of the "magic" that happens... but as with systemd, I feel as much as I'm not a fan of some of it, I'd be fighting the tide and therefore not keeping up my knowledge of frequently used system components..

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Re: [luv-announce] LUV Main March 2017 Meeting: Multicore World / Patching with quilt
by Duncan Roe 06 Mar '17

06 Mar '17

On Mon, Feb 27, 2017 at 11:22:53PM +1100, luv-announce wrote: > *PLEASE NOTE NEW LOCATION* > > Tuesday, March 7, 2017 > 6:30 PM to 8:30 PM > Level 29, 570 Bourke St. Melbourne > > Speakers: > > ??? Lev Lafayette, MultiCore World 2017 Wellington > ??? Russell Coker, Patching with quilt > > > Lev Lafayette, Multicore World 2017 Wellington > ---------------------------------------------- > > Lev Lafayette is the HPC and Training Officer at the University of > Melbourne. Prior to that he worked at the Victorian Partnership for > Advanced Computing (VPAC) in a similar role for several years. Since > 2006 he has done a few things for LUV as well. > > > Russell Coker, Patching with quilt > ---------------------------------- > > Russell Coker has done lots of Linux development over the years, mostly > involved with Debian. > > > 570 Bourke St. Melbourne, between King and William streets > > Late arrivals needing access to the building and the twenty-ninth floor > please call 0490 627 326 or 0421 775 358. > > Before and/or after each meeting those who are interested are welcome to > join other members for dinner. We are open to suggestions for a good > place to eat near our venue. > > LUV would like to acknowledge Dell for their help in obtaining the venue. > [SNIP] According to the PTV web site, it's a 20 min walk to Maria's or 10 mins by (free) 55 tram (every 20 mins: we just get one if we happen to leave the building by 2030) Sounds fine to me, Cheers ... Duncan.

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