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Topics - PoppaGeek

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Networks and security / Raspberry Pi VPN Router w/ PIA
« on: Today at 02:44:05 AM »
Raspberry Pi VPN Router w/ PIA (Private Internet Access)

GIGABYTE Intros MZ30-AR0 Motherboard for AMD EPYC

"GIGABYTE introduced the MZ30-AR0 motherboard for single-socket AMD EPYC processor-powered servers and workstations. The motherboard is built in the E-ATX form-factor, and features a single SP3r2 socket, for AMD EPYC 7000-series processors. Given that EPYC is a full-fledged SoC, the board has no chipset. An ASpeed AST2500 remote-management chip puts out basic display and IPMI features. The board draws power from two 8-pin EPS connectors, besides the 24-pin ATX. The CPU socket is flanked by 16 DDR4 DIMM slots, which support up to 512 GB of octa-channel DDR4 memory.

Expansion slots include four PCI-Express 3.0 x16 with full-time x16 wiring, one x16 with x8 wiring, and two x8 slots. Storage connectivity includes four slimSAS 12 Gb/s ports, which put out sixteen SATA 6 Gb/s ports, and a 32 Gb/s M.2 slot. Networking is care of two 10 GbE ports driven by a Broadcom BCM57810S processor, and a single GbE port. There's no onboard audio or even USB 3.1 ports."

Crunchers café / fooking idiots
« on: 16 June, 2017, 09:42:41 AM »
Eating fried potatoes linked to higher risk of death, study says

OK I admit I have had a few more beers than might have been advised. But even drunk I see the idiocy of the CNN title. Let's analyze.  If you eat a fucking fried potato your chances of dying are higher. So if I eat kale and twigs and grass there is less chance I die?  I'll just wish the hell I did!?!?

I got news for ya CNN. No living thing on this planet DOES NOT DiE. Your chance of dying is 100%. Garen-fucking-teed. Fried potatoes or not. Only difference between me and you is I will die with a greasy, beer foam drenched beard and a smile on my face. Fatter than a fooking pig from all those delicious beer calories, arteries clogged with fat from BBQ pork and deep fried potatoes and more. I'll eat my fried potatoes with lots of sour cream, topped with bacon and wash it down with a real beer. And lot's of it. I will probably die before you but I''ll be smiling. You will just be glad your miserable life is over. But you will be just as dead.


Advanced CIA firmware has been infecting Wi-Fi routers for years

Latest Vault7 release exposes network-spying operation CIA kept secret since 2007.

"Home routers from 10 manufacturers, including Linksys, DLink, and Belkin, can be turned into covert listening posts that allow the Central Intelligence Agency to monitor and manipulate incoming and outgoing traffic and infect connected devices. That's according to secret documents posted Thursday by WikiLeaks."

Raspberry Pi Devices Being Infected by Cryptocoin "Mining Malware"

"If you have your Raspberry Pi setup and have never changed the default password on the standard "pi" user, it's probably time to do so. A new malware has come out that exploits the simple fact several users apparently have never changed this password. Once it installs itself, it exploits the recent rise in value on cryptocurrency (Bitcoin recently topped $3000 per BTC) to mine cryptocoins for the authors benefit. This not only uses almost 100% of your poor Raspberry Pi's limited CPU, but also makes it part of a "mining botnet" that nets the controller money, adding insult to injury. The malware also makes an anonymous proxy on your box, which needless to say is probably not a good thing."

"You might think you are safe behind a firewall, but with the rise of IPv6 on many ISPs and the fact that many older firewalls are not IPv6 ready, you may be surprised to find your SSH port is in fact exposed on the internet whether you know it or not via a global IPv6 address, NAT isn't a guarantee anymore, folks. It is in fact best to actually have a strong, non-default password on your box, even if it is just a little ARM-core.

Unfortunately, as Cryptocurrency rises in value and becomes more legitimate, it brings with it both positive, tangible benefits for society, and sadly, criminal fringe elements. I'd argue that the dollar is still the most widely used currency for criminal transactions, but there's more to it than that for certain. Maybe that's a topic for a future editorial? I don't know.

For now, just remember to always be vigilant in system security, as malware is sure to explode more than ever now that people have realized that they can make a profit on your misery."

World Community Grid Tech

"The Open Zika researchers have recently constructed a cleaned-up library of 30 million ligands (drug candidate compounds) for use in their drug search. They have kindly offered this library to the Smash Childhood Cancer project. This will increase the number of drug candidates the Smash Childhood Cancer project can process about ten-fold. I am in the process of transferring this data to them which should finish in a day or so. They will then construct new work units to use these additional ligands. There might be a few day pause while this all happens, but there should be considerably more work for the project on the current targets and any new targets if all goes well."

Linux / RPi Distributions
« on: 06 June, 2017, 11:15:50 PM »
Did you know there are 50 RPi distros? I had no idea. List includes everything from *BSDs to a stripped down Raspbian server version, native Commodore 64 emulator, media players and industrial applications.

NVIDIA, AMD to Launch Mining-Oriented Versions of Their GPUs

"You must've heard the news of increasingly tighter supply on AMD's video cards. This is kind of a "hello darkness my old friend" kind of moment, since we've seen this happening before. However, these days, the problem looks to be exacerbated with the increase in digital currencies - it's not just Bitcoin now. Ethereum and Zcash have come in to fill customer's desire for a lower entry, ASIC-resistant mineable cryptocurrency. And with the currencies' exploding pricing, people are once again looking to enter the mining craze - to ride the crypto wave, so to speak. All higher-performance graphics cards since the R200 series are flying off the shelves and second hand markets, and as we speak, virtually all RX 580 models are out of stock on Newegg. And while AMD graphics cards have historically been leagues better than their NVIDIA counterparts in mining environments, recently some specialized miners have surfaced, tailored for the Pascal architecture (more oriented to Zcash, though.)"

"As a result, demand for AMD graphics cards is straining and suffocating supply, and it could be that NVIDIA will go the same route, should recent optimizations continue. It would seem that both companies understand the strain this puts on general customer who really just want to play a game with their graphics cards, but are finding pricing and availability an insurmountable challenge. Both companies are thus reportedly working on specialized editions of their graphics cards specially geared for cryptocurrency mining. These would apparently eschew any gaming capability, and likely display output connectors as well, which are unneeded for mining farms. NVIDIA is said to be prepping a special edition GeForce GTX 1060 with their GP106-100 GPU, and AMD is rumored to be working on some adaptation of their Polaris graphics cards as well. Sources point towards only 90 days warranty on these NVIDIA GTX 1060 cards, which will also be cheaper than gaming models, and be distributed by add-in board partners."

Now I know why I couldn't find a card at suggested retail. Last time this happened to me was last time mining was gaining in popularity and prices went skyward and supply tanked.

How to build your own VPN if you’re (rightfully) wary of commercial options
While not perfect, either, cloud hosting providers have a better customer data record.

Have not read this yet but it is an extensive how to using several options.

The Pi Desktop kit transforms your Raspberry Pi into a stylish, SSD-powered mini-PC

"The kit itself features an add-on board that connects via the Raspberry Pi’s 40-pin GPIO. The board carries the mSATA interface, a power controller, and a system clock. In addition, the kit offers the case, a heat sink, a USB adapter, the system clock battery, and enough spacers and screws to put your tiny new Raspberry Pi desktop PC together."

World community grid / Linux updates, Boinc no network WCG
« on: 21 May, 2017, 09:37:28 PM »
Had some issues today and while dealing with them I decided to run updates on Ubuntu Server. Boinc was running and updates had not been run in a long time. Later I noticed Boinc on that machine had 48 tasks completed but not uploaded. Looking in messages I found:

Code: [Select]
Scheduler request failed: Peer certificate cannot be authenticated with given CA cert
I restarted Boinc and all good. Assuming the updates changed something. Posting this because when I googled the error above the recommendation I found was to reset Boinc which I would then loose the 48 completed work units. So always reboot and restart before you do anything. Fixes a lot.  ><{

Linux / Install Linux from USB stick
« on: 17 May, 2017, 10:53:50 PM »
Just a short FYI.

If you have Mint installed there are 2 programs for this:

USB Stick Formatter
USB Image Writer

There is another program called Disks that will do both tasks, it is also on Ubuntu Mate install and probably installed by most Ubuntu based distros.

If your needs are different here is a comprehensive guild:

Linux / Ubuntu Server install - Headless w/o GUI
« on: 17 May, 2017, 10:29:08 PM »
With temps now getting up to the 90s most of my farm is shut down and what remains runs only at night. I use this time of year to move hardware around and do new installs. Decided to install Ubuntu Server on one machine and Ubuntu Mate on another. It had Mint on it and it was OK but I find the menu lag annoying and I like Ubuntu Mate on another machine so  it got a new install. Also wanted to change hard drives in it.

Most of my hardware is dated. The 2 dual quad core servers that have been running Ubuntu Server for about 6 years now have been 100% always.   No issues and still running fine. So I decided to add a quad core Opteron to the Ubuntu Server count. It had been many years since I installed server and I remembered little of what the processes was like. What kinda surprised me was how fast it went. The download was like 850 megs and of course it did not have the countless libraries and binaries needed to run a GUI as well as not all the word processor, spreadsheet, games and other unnecessary cruft a dedicated headless cruncher doesn't need.

For those curious of what the process is like I found a site that documents all the steps to installing server with pics.

Then it was just a few commands and it was done.

To get IP# for BoincTasks

Code: [Select]
Get Updates

Code: [Select]
sudo apt-get update
Code: [Select]
sudo apt-get upgrade
Install and configure Boinc for BoincTasks

Code: [Select]
sudo apt-get install boinc-client
Code: [Select]
cd /etc/boinc-client
Code: [Select]
sudo nano remote_hosts.cfg
Enter IP# of BoincTask host

To write and close nano


I like to use Boinctui and htop so I installed those.

Code: [Select]
sudo apt-get install htop boinctui

Tip: When at the server and you need more than one screen use ALT F2 and it will give you another login. ALT F3 and etc for more.

Pics below show why I like Ubuntu Server especially on older hardware. Uses little memory, work units get more CPU time, less disk space needed and the system is just quieter with far less going on. Uses 245 megs ram with 4 tasks running, tasks getting max CPU % and used 1.5 gigs disk space.

Anyway to each his own. But this has worked very well for me for about 6 years or so.  ^)(^


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