- Talk - lists.gtalug.org

Upgraded to Beaver and Command Line Says 'command not found'
by Stephen 07 May '18

07 May '18

The program I wish to run is mediatomb The file is in /etc/init.d/ Samba started fine. Apache did not. Things look fine, but I am a novice with with. Never had a problem to diagnose before. Help appreciated! -- Stephen

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Crontab versioning
by Alex Beamish 04 May '18

04 May '18

I'm developing scripts that get run by crontab, so I'm in there making updates fairly regularly. I would love to be able to document the changes, so I'm wondering if there a usual and customary technique to version crontabs? Ideally there would be some sort of hook around 'crontab -e', but failing that, I'd have the output of 'crontab -l' (run regularly by cron?) go to a versioned file. Plan B sounds a bit hokey to me. -- Alex Beamish Software Developer / https://ca.linkedin.com/in/alex-beamish-5111ba3 Speaker Wrangler, Toronto Perlmongers / http://to.pm.org/ Baritone, Board Member, Toronto Northern Lights, 2013 Champions / www.northernlightschorus.com Certified Contest Administrator, Barbershop Harmony Society / www.barbershop.org

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Anyone using React Native?
by William Witteman 02 May '18

02 May '18

I was hoping to poke at React Native a little bit, but I have been having no end of trouble getting anything Node to work. Specifically, I keep getting CERT_UNTRUSTED errors when I do anything with npm in front of it. I am using Debian testing. If anyone is using it, I'd love some pointers. Thanks!

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Dont post this please, Just introducing myself and moderator approval
by Kumash Patel 26 Apr '18

26 Apr '18

This is meant to be a signup email. I am interested in the malware talk happening on may 8th. Just came across the community and it looks like the thing i have been searching for a while. I am a novice at linux, installed manjaro on my now-dead thinkpad x210. but yeah nothing beyond that with linux so far. I have done a few university courses in python based fundamental programming concepts. And have been following an online tutorial for UE4 programming in c++. I would like to learn more about website hosting and development because i wanna make a blog that acts as a personal website to keep adding things to (modifying/experimenting on different features). I cant do it alone, I need help from people who already know about these things and are willing to share. Thanks for reading this, Kumash Patel

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[GTALUG-Announce] GTALUG Meeting on Tuesday 8 May at 7:30pm
by hi＠gtalug.org 26 Apr '18

26 Apr '18

<http://gtalug.org/meeting/2018-05/> # Malware! with Garry Pejski Due to poor life decisions I made malware for a while. This is my story. Handsome local computerist GARRY PEJSKI™ steps out of the shadows to warn the Toronto hacker community about the perils of performing cyber crimes. Heed his incredibly interesting words of wisdom or invite doom upon the world! ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <http://goo.gl/maps/16oJ2> <http://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <http://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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IBM - cache skirmish story.
by Russell 25 Apr '18

25 Apr '18

Actually this is more of a can't see the forrest for the trees issue. Or; when your only tool is a hammer, everything looks like a nail type thing, rather than one of Hughs war stories. I'm a corporate correctness kind of guy, so in my mind Wars are sanctioned. This was a pure and simple un-sanctioned tech skirmish. I only ever did one hack on IBM owned equipment. It was while I was visiting at their Celistica site. The problem, which had been happening to my friend, who worked there and did some of the jobs she did remotely from home in the early 90's, was typematic delay. However IBM Staff told her it was the network lagging. Both at home and at the office. My friend was an internal event planner and would login to something, VAX/VMS I think. I never looked or asked. Her words not mine. I just checked the bios. After I booted to dos I noticed severe cache lag in typing. If you weren't a touch typist, you'd hardly notice the issue. I'm touch trained and so was my friend. I rebooted and went into the bios and increased the buffer from 4cps to 12cps. I am a fast typist, my friend was lightning fast. She dragged me up to Celstica the next day to do the same thing on her office computer. For that hack and helping out with some tech stuff ie. setting up hw, which was being awarded to students at the Annual banquet, I got to see Celine Dion perform with Pebo Bryson and eat an outstanding meal, coordinated by the event group at the Inn on the Park Also since the group got an award for their coordination of the banquet, I got to share in that award at Marche. I'll always remember my friend saying nobody will ever believe that "my carpenter boyfriend fixed a computer issue that IBM techieboobies, could not." So, I hope that the cache wiring diagrams have improved at IBM over the years, or this snippet of ledger news doesn't bode well at all. https://www.ibm.com/blogs/blockchain/2018/04/blockchain-based-batavia-platf… -- Russell

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Key Signing follow up, what shall I do next?
by Antonio Sun 19 Apr '18

19 Apr '18

So I attend the Key Signing party, exchanged my signatures, and even get emails telling me that my key is signed. I'm now a bit lost on what shall I do next, and trying to google for the answer didn't help much either. The closest I found is: GPG Tutorial https://futureboy.us/pgp.html#UpdatingKeys and I've checked the following sections: Updating Keys People are constantly updating their keys for various reasons: - Keys get compromised or lost and they are revoked. - Keys are signed by more people, building a Web of Trust <https://futureboy.us/pgp.html#WebOfTrust>. . . Who Signed My Key? Now that you've updated keys from a keyserver, you might want to see who has signed your key. After all, *anyone* can sign *any* key and re-upload that key to a key server. You can see the signatures with the --list-sigs command to gpg . . . However, I'm still at lost understanding them. I.e., I tried both the suggested commands, but can't see any sign that my key is signed by more people, and any of their emails. All that I know is that - I get an email telling me that my key is signed. - I'm able to decrypt it, and see an attachment of mykey.asc: --------------B954318AC305B6429BF6150D Content-Type: text/plain; charset=UTF-8; name="mykey.asc" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="mykey.asc" What steps I shall do next? (Instruction for the command line is more welcome than using GUI) Thanks!

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Recommendations for a root filesystem
by David Collier-Brown 19 Apr '18

19 Apr '18

I'm running Fedora, and want a filesystem with a write cache that I can put on flash, as I occasionally run some evil write-intensive tasks. I'd love to simulate the Sun trick of flash for write cache and ephemeral for read cache. Alas, my brain is roughly at the samfs/qfs level (a predecessor of zfs) and it's not clear what of the more modern filesystem I should consider for everyday use. --dave -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest davecb(a)spamcop.net | -- Mark Twain

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Build critique request and the story behind it.
by Russell 19 Apr '18

19 Apr '18

This year I purchased an APC UPS because of my flakey connection to the grid. Ominous read clicks coming from my boot drive cemented that decision. I am happy to say that not only did I avoid my biannual unexpected shutdowns, the UPS also sensed transient RF spikes. It begins to click, switching to the battery and back to mains, even though there is no visible disruption to service, although the emergency lighting in the hallway was triggered and beeped itself on. I decided to purchase a case and build a new desktop. I waited till now because I was loosely following Sarah Sharp, of Intel and listened to her comments on USB. Version 3.0 is RMA as of Jan this year and her general comment is that hardware development has peaked and so the immediate future is in developing software. Here is the case I chose. I take delivery tomorrow. http://www.coolermaster.com/case/lan-box-haf-series/haf-xb-evo/ Newegg has this combo on offer. Intel Core i5-7500 Kaby Lake 4-Core 3.4 GHz CPU w water cooling unit ASUS STRIX H270F GAMING MB G.SKILL 2 x 8G DDR4 As a creative anachronist or purposefull recycler, I haven't built a complete system from all new parts in a dozen years. I thought I'd get my hand in before arthritis takes over my hardware chops completely. I'd appreciate any warnings and caveats regarding this combo. I'm still window shopping but what I'm looking for is stability and longevity over gaming. This combo has DDR4 and USB 3.1. I'm kind of fixed on the usb but I'm not married to the ram. So suggestions which lower the cost are most appreciated. I have a 650w Corsair p/s which is ok but a big factor for me is the ambient noise and recommendations on a quiet supply would be appreciated. Noise is why I'm trying out water cooling. From the reviews on the case I'll probably have to replace the case fans, but who knows I might get lucky. I follow with interest the posts on UEFI, secure boot, SElinux, USB, udisks, udev, mobile linux and systemd. Now is my time to see if I have learned anything. Thanks to all posters. Regards -- Russell Sent by K-9 Mail

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Microsoft says its new Linux-based OS will secure IoT devices for a decade - TechRepublic
by James Knott 19 Apr '18

19 Apr '18

What's this? Microsoft developing a Linux based OS?? https://www.techrepublic.com/article/microsoft-says-its-new-linux-based-os-… It's amazing the changes at Microsoft, since Bill & Steve left.

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