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Ive been trying to get ccminer set up to mine monero but i keep getting the error code "nonce unable to validate on cpu". Ive updated my gpu drivers and tried two different versions of ccminer and both dont work. Anny ideas would be helpful system specs cpu:ryzen 5 2600 gpu:gtx1070 ram:16gb gskill
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via: https://arstechnica.com/information-technology/2019/11/official-monero-website-is-hacked-to-deliver-currency-stealing-malware/ The official website for the digital currency Monero was hacked and modified to deliver a malware disguised as crypto wallets with the purpose of stealing user's' currency. Researchers found that there had been changes made to the Linux binary was a script that ran when open which sent your wallet seed to a server. The Windows CLI wallet functioned similarly. At the time of publication of this topic and article from which this was sourced, one reddit user has claimed to have lost his/her coins due to the installation of the Linux binary. GetMonero's advisory has yet to claim the any vulnerabilities in the website and if the site had been fixed. There is a download link of the Linux binary meant for developers and researchers to analyze and comprehend the code.
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So I've spent dozens and dozens of hours, and over $3000 of my money buying various hardware, CPUs and GPUs, testing crypto mining, specifically for mining CryptoNight currencies. This post is compressing all that info learned, free of charge to anyone. Maybe a poor financial decision on my part considering most people who spent a ton of money to learn something don't just give it away for free. Yes it's a very long post, but one does not simply compress 50-100 hours of experience into a paragraph or two. My Results: I have come to this conclusion having testing R9 390s, 390Xs, 5870s, r7 270, gtx 760s, gtx 750tis, gtx 1080, gtx 970s (various models with different memory configs). After learning what was good at Mining cryptonight currencies, such as Monero, I first learned that cards such as GTX750tis were AS efficient price to performance wise to mining as the higher ends cards like a GTX 1080. Example, you could buy 4 GTX 750tis and they would match a 1080's mining performance and wattage while costing half as much. 390Xs were pretty good too but had a mucher higher buy-in cost. My first setup was to experiment with GPU mining systems and I had a 5-8 GPU setup with various cards constantly swapping in and out for testing. After this I moved to testing CPUs, originally with a dual Xeon server. The CPUs efficiency peaked my interest, and I immediately began comparing CPUs to GPUs for mining the currency. After extensive testing, I found one extremely key fact: A efficient and well planned CPU based mining setup would mine as good as a comparable GPU setup dollar for dollar. It would however perform less favorably electricity efficiency wise, but this is offset by one massive factor: GPUs are price inflated, making investing in them very risky. The Opteron CPUs I settled on are not nearly as price inflated as GPUs, meaning if the currency were to suddenly tank you don't get destroyed by poor profitability; you're still left with very powerful servers you can resell. Another huge benefit is these Opteron servers are extremely modular compared to GPUs. My GPU setup had cards laying exposed everywhere and just a mess of cables and adapters that have no resale value at all. It was messy and unsightly. My Opteron server cluster, I literally just stack the thing, in a perfectly contained, perfectly stackable setup. Most intense GPU setups have an expensive metal rack to hold them. you can just stack these servers on the floor with no extra hardware costs and it'll run and look good. So key points to a CPU based mining system : On par with GPU performance with no risk of lost value to severely inflated GPU prices, and it has an extremely expandable and modular system setup. These traits make it a far less risky investment for you and just easier all around to setup. On top of this it doubles as a very powerful home server that any Techie can appreciate. And who doesn't like bragging about their core count? So that's the conclusion on the comparison and why its better in my opinion, now, here is for my test builds, comprising of 2 main Opteron based servers: Server 1 (high end) CPU: x4 Opteron 6380 System core: Dell Poweredge R815 RAM: 16x2GB DDR3 ECC 1333 Hash Rate: ~2.15 KH/s Wattage: ~635 Watts Cinebench R15 Score: 2723 (raw CPU performance relevant to a home server) Cost: ~$800 Server 2 (budget) CPU: x4 Opteron 6212 System core: Dell Poweredge R815 RAM: 16x2GB DDR3 ECC 1333 Hash Rate: ~1.11 KH/s Wattage: ~540 Watts Cinebench R15 Score: 1486 Cost: ~$535 I originally planned on 3 server builds but hardware issues on server #3 set me back too long ADDITIONAL PARTS REQUIRED: Either run Linux off a USB with no drives, or buy a cheap 2.5" SAS HDD for $5 AND a H200 Perc RAID card(if you don't have one)to hook up a drive and get an operating system installed. I populated all the drive bays on my servers to use them as home servers as well as mining servers (another big perk). Running off USB reduces build cost but you can't use it as a home server. This cost (HDDs) is assumed in my above build costs. I found the big factor in building these servers was the cost of the main system. The cost for RAM and for the motherboard/system is a fixed cost. I found a quad socket Dell Poweredge R815 was the key factor in bringing down your system costs enough to keep it a good purchase. Keep in mind with any GPU setups you also need many power supplies, motherboards with lots of PCI-E slots, lots of PCI-E risers, power cables, ect. When comparing the fixed costs of both systems the Opteron base server is only marginally more expensive unless you building a massive GPU setup, and as discussed before the benefits of resale value and expandability well outweigh a slightly higher fixed hardware cost. Notes for purchasing, buying in bulk can save a ton of money. Buy a single Opteron 6380, its $150. Make an offer to buy 4 at once? You get them for $400 all in. Build 3 servers at once? Cost gets even lower. If we don't include the fixed costs (which even GPU systems have too, which I completely ignore here!), these CPUs walk all over a GPU cluster in my opinion. Eye candy for those who don't like reading numbers: More is better (below) In the above graph we see the clear dominance of these servers in their mining power compared to how much money you spend. The decently efficient 6380 server is even more cost effective than a vega 64, the best mining gpu out there for Cryptonight at current GPU prices. Less is Better (below) In the above graph we clearly see GPUs walk over the servers in efficiency, but that doesn't ignore the fact even the most inefficient server mines profitably (100-300% return), while doubling as a powerful home server which has many other practical uses. There is a clear tradeoff you take with CPU servers, you do lose efficiency, which is a Con, but there are many Pro's as discussed. Notes: Although you can get a lot of Opteron 6100 series cores, they do not support AES, which cripples their mining performance to the point where they are 99% less efficient regardless of their CPU cache or cores. Any 6200 and 6300 series CPUs are good. You're looking for high CPU Cache amount, and as high core clock as you can with your budget and availability of CPUs. I tested 3 different setups for comparison purposes. They have different core amounts and Cache. ALSO NOTE: most of these R815 systems come with old BIOS. You must buy a set of Opteron 6134s for example for $20 shipped in order to boot the system and update the BIOS to 3.2.2 if you want to use something like Opteron 6380s! Make sure you let the system fully reboot. I bricked one of my motherboards because I was rushing (-$130, oops), and you can't just clear the BIOS like a normal gaming motherboard! Comments on Investing in Crypto and mining: I do not discuss profits because of constant market changes. This setup currently mines a large amount of Monero, and Monero is worth pretty little right now (meaning it will likely improve significantly, especially with the recent fork on April 6th). If you were to mine with a single 6380 system you would make like $3-4 a day (profit) and $5-8 in revenue a day of the coin, but if you did this for 3 months, held onto the coins you mined, and then the value spikes and you sell it, you stand to make a LOT more profit than before ($5-15 per day profit) . Part of this is not just the daily profit, but the potential for long-term profit gain and investing. Its very important to keep this in mind. If I mined for 3 months with 3 servers, If the currency doubled in value back up to its previous $400 per Monero, then It would be as if I had made $20+ profit every single day for 3 months. Thats a lot of cash, especially considering if you then resold the servers you would make a pretty penny, maybe even significant profit on the machines themselves on top of the currency mined! EDIT: Just in the weeks i've been refining the post and typed the previous, monero has gone up in value 47% and steadily rising as I had predicted. Some background on me personally, I'm 18, just graduated High School, and looking to start college for computer networking extremely soon. I invested more money than I probably should have researching this and comparing servers. I'm not made of money, and In giving this info for free, I personally incurred a lot of cost, nevermind typing all of this up. If you use this info to your advantage, or build some servers, maybe consider donating some Monero to me as a thanks. If you build servers, then maybe even just mine to my address at this pool for a bit or something instead as a thanks. And let me know if you do! Buying the discussed hardware: I didn't want to do this as I wrote the bulk of this post a few weeks ago, but I'm pretty burnt out working with my servers, and I'm actually selling my servers at very little to no profit on ebay to invest my money into other hobbies. If you'd like to help me do that, contact me on forum about my Opteron 6380 server [sold]or my Opteron 6212 server and I'll sell them to any forum member with an account at least two weeks old at no profit to myself. I believe in the investment and the massive profit potential in 1-2 years but at this time in my life I can't have this much money invested. If you are looking to purchase the hardware discussed above from other sellers, I could point you in the direction of "IT Mart". They have an Ebay page here, and a website here. I have bought from many sellers of used server hardware on ebay, and gotten many bad parts before (which you are entitled to working replacements on ebay, but it costs you time, which is money in mining). Every Item I've purchased from this seller have been great parts with no issues, and they were always super friendly and willing to assist me. Troubleshooting Issues and Questions Chances are if you have questions about any of this (hardware or mining crypto), I can answer it. Ask me, and if you're new to the forum, be a part of the community and join the discussion while you're here, it's always nice seeing other miners on the forum. I'm happy to help anyone if I can.
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Interesting take on the subject by Computerphile. A claim here that Monero was made to money launder. Does that mean it has ethical and/or legal repercussions? It would put me off using it, vs Bitcoin. As I'd see Bitcoin as purely anonymous/trading value trading and Monero as purely zero repercussion trading.
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Monero forked to Monero7 last night, rendering all ASIC miners useless. Yesterday the Nethash was over 1GH/s. Although pool Nethash calculators have not updated and won't for a few days, the time every block was found went from every 120 seconds, to every 821 seconds. This is a predicted Nethash drop to around 165MH/s. This is an insane drop in Nethash, and shows just how many miners were ASIC miners. The pool I mine on alone saw a 50% decrease in hashrate. I saw no decrease in performance on my mining servers. The result is consumer hardware is significantly more profitable to mine on now, and the servers I built to mine Monero/Cryptonight currencies are gonna get bigger payouts than they ever have. I expect to see a steady increase in Monero's value over the coming weeks/months. Getting rid of ASIC miners is crucial to a currencies long term survival and for keeping the privacy attributes of Monero safe. Few people having the majority of the Nethash is very bad, and now its going to be a LOT more spread out. Funny thing, also "Monero Classic" is a thing now, a altcoin of Monero which ASIC's can still mine. However its missing many of some key privacy features meaning its pretty much a fake coin which is an attempt for ASIC manufacturers to keep selling the ASICs.
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Secondary Sources: Bleeping Computer, Marketwatch, Stanford University Primary Source: Vectra It's no surprise that cryptocurrecies especially Bitcoin created a monster. At the moment cryptocurrencies are associated with the following such as: Money Laundering Tax Evasion Cybercrime This guy shown above have to cover his mining rig with a blanket during dorm inspection. I'm not surprised if mining rigs like that one above are banned in college dormitories simply because of the fact that students are abusing university resources including power. There's only so much that tuition covers and it will be too much financial burden for the university to pay a high electric bill. Also I think those mining rigs can pose a danger of catching fire if overclocked and not cooled properly. That's why other universities such as Stanford called for a complete ban of cryptomining inside campus saying: But from the perspective of the student named Dilliha, he got to do what it takes to offset costs of living and taking advantage of the university's tuition paid electricity is one of them. He bought the mining rig from eBay and he said he's earning $30 a week which may not seem a lot but in a month that would be enough to pay his phone bill and save the excess in a bank or spend it on something else. But students also have to understand that they are abusing their privileges so it shouldn't piss them off if school authorities come knocking at their dorm rooms and seizing their mining rigs. Another incident is in Arizona State University when a college student posted something on Reddit last year about mining Bitcoin using Nice Hash with two GTX 1080TI. Some people suggested using a VPN but OP said it made things slower. As reported by Vectra, higher education is one of the targets in cryptojacking. One reason they point out is sloppy as Bleeping Computer says, Just like the student from University of Iowa who cheated by changing his grades 90 times and later got kicked out, it makes me wonder how do school administrators allocate and spend all their earnings because security is something not to be taken seriously. I'm by no means an IT administrator or a CISO/CSO but they can implement deep packet inspection to their networks to block access to mining sites as well as blocking VPN access, tighter firewall rules and enabling "default deny" in computers within campus like computer labs and librariers. Windows 10 Pro, Enterprise and Server 2016 has built in default deny feature called "AppLocker" which is integrated to Windows Defender Antivirus. Third party enterprise solutions also has default deny features and are extended to USB flash drives which will not only block blacklisted programs but also access to USB flash drives that might be harboring cryptomining malware. Some people in the forum have suggested "No Script" but as it turns out, it not only cripples your web browsing it can easily be circumvented as some cryptojacking techniques are way sneakier than merely injecting mining scripts in websites as many of them take advantage of unpatched vulnerabilities. [Sources here, here, here, here] I agree that ransomware has lost its spotlight in a matter of months and cybercriminals have shifted to mining cryptocurrency. But it only shows that some broke college students have to resort to mining just to pay their dues even using electricity and internet that is not their own. I've said it once in a status update but I'll say it again, I want to see cryptocurrencies to crash and burn.
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Researchers at Malwarebytes have discovered that android devices have been being tricked into mining Monero by advertisements since November 2017. As of time of posting, the scope of the operation is unknown. So far, this exploit has not been used to steal information off of the phone as it relies upon opening a new tab which contains code to mine Monero, and once that tab is closed the mining ends. International Business Times article: http://www.ibtimes.com/millions-android-devices-compromised-mining-monero-2653185
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Hello, I am pretty new to mining. I have a few machines set up and running just fine, but I am having trouble getting nvidia gpu mining started on my ubuntu 14 box. I have a quadro 2000 in the machine. CPU mining is going fine , but I keep running into issues with all of the mining software I have tried (ccminer, xmr-stak). I could use some help getting this working. Any advice is appreciated. Thank you.
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I own a Sapphire R9 290 Tri-X. I currently mine XMR with it. How can I improve the hashrate? Overclocking the core or the memory? Maybe even underclocking the core? I´ve checked a lot of threads. But I can´t really find an answer to that
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Not sure what section this would fit in. Mods please feel free to move it to an appropriate location. Please NOTE: I and anyone else using this forum nor site admins, moderators, owners, etc are not responsible for you deciding to explore anything listed here and getting infected or other problems occurring as a result. This is just a list for your information This will be a list of sites i've found to try and run various miners in the background on your computer. It will be updated periodically when I have time. Please feel free to send me sites that you have found do so so I can add them. I thought it might be useful to have a list of these sites somewhere so people know what areas to avoid and/or add to their blockers Ways to prevent unauthorized mining I will try to keep it somewhat organized by: Site type, miner type, sites that have in the past but don't now (supposedly), and other categories you may suggest. Coinhive.com, coin-hive.com, and coinhive.min.js are possibly the biggest provider of said website mining. Blocking it can help (not guaranteed though) prevent miners specific to this provider from popping up When you suggest a site, please do not link it, just the name and suffix should suffice. Type of site, type of miner used if possible, and other information that may be helpful is welcome.
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Source: Ars Technica So ransomware is old, cryptocurrency malware is the new kid. I don't think ransomware is going away anytime soon but given that many anti-virus programs have some sort of behavior blocking capabilities that can recognize known behavior of zero-day ransomware like accessing disk sectors or tampering the master boot record, block it's execution and even roll back malicious actions like unwanted encryption and with that, malware authors probably saw a decrease in people paying for ransom. Malware authors probably think why not just use their victim's PC to mine cryptocurrency without their permission. What's worrisome to these new cryptocurrency malware is that it can evade ad-blockers. There are even Chrome extensions that are being used to mine cryptocurrency and even pirated content website Pirate Bay is using stealthy miners to monetize traffic. AV vendor Bitdefender commented that these coin miners aren't full pledged malware but most anti-virus programs including detect and block cryptocurrency miners if they are being executed without user permission and users are given the chance to whitelist them. Since an ad blocker is not going to prevent stealthy miners, the best way to prevent them is to stay away from piracy websites and to use an up to date security solution. I once considered mining Ethereum after reading @Ryan_Vickers's post but I don't think what I'll earn from Ethereum is worth it since I don't have free electricity and I need an AMD graphics card.
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In news that might be slightly related to the recent Pirate Bay mining script, Showtime was briefly running the Coinhive on two of their websites. It's not known whether this was a malicious hack of the site or if Showtime was looking at replacing Ad Revenue with Crypto Mining however the script has since been removed from the site. https://www.bleepingcomputer.com/news/security/showtime-websites-used-to-mine-monero-unclear-if-hack-or-an-experiment/ So websites may be trying to move away from Ad Revenue into just using your CPU resources to raise revenue. I think the main thing on this is that it is being done in the background instead of letting the user know that their CPU resources are being allocated for other tasks. If they honestly are moving away from Ad based revenue and request permission for a certain amount of your CPU while you are on the site, that may be more workable than trying to do this in the background. Especially considering that while you are visiting one of these sites you may also be running a CPU intense task in the background. EDIT: So in an article on The Register where they were able to contact the Web Analytics business associated with the Showtime sites as well as some information from Coin Hive which makes it sound as if Showtime may have been breached and had this script injected temporarily. Although Showtime still has not provided comment so it's not truly known yet where the code was injected from... https://www.theregister.co.uk/2017/09/25/showtime_hit_with_coinmining_script/
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Okay so basically the idea was, with my gear I have laying around my place, can I actually mine? Everybody is on that Ethereum (ETH) craze but I was wanting something another step removed, something different, which landed me on Monero (XMR)! Now there's two desktops, an older laptop, and I'm considering the entire network to be a power usage for this as well. Each device has it's own 1500PFCLCD that keeps it online and running clean, though the laptop and network share one. Now I want to point out before I start getting into the stats, I just started out with XMR. I've spent a good amount of time doing little tweaks and optimizations, while watching system stability throughout the day. Though I'm positive more knowledgeable miners would be able to achieve much better results then what I'm showing here, though this is how we learn! CPU #1 : i7-5930K @ 4.5ghz across 10 threads = 331.5 H/s GPU #1 : Geforce Titan X (Pascal) @ 2ghz/5ghz = 872.6 H/s POW #1 : 396W (monitors, speakers, mics off) CPU #2 : i7-5820K @ 4ghz across 11 threads = 304.8 H/s GPU #2 : Geforce GTX 1080 (Gigabyte WaterForce) @ 2ghz/5ghz = 581.7 H/s POW #2 : 324W (monitors & speakers turned off) CPU #3 : i7-3720QM @ 3.4ghz across 7 threads = 131.1 H/s POW #3 : 108W (laptop lid shut) (includes modem, router, & pi-hole) Total Hash Rate : 2221.7 H/s Total Power : 828W Now this returns after all the power is accounted for $4.99 a day, or $149.72 a month! That's of course at this exact moments exchange rates though I'm not complaining for power that was going unharnessed beforehand. My gig internet is $200 a month, so it's paying for about 75% of my internet bill. Though as you can see, this is not how miners build rigs! A Titan X (Pascal) on an insane custom EKWB loop? Yeah that's not helping anyone make money mining, nobody would ever purchase this gear for mining. Though like I said, they're my personal machines, so I figured why not, let's see just what they'll do! Though I know you guys are going to want screenshots on everything, some text in a box just isn't going to cut it! So I've came prepared! Box #1 Mining: Box #1 Power Draw: Box #2: Mining Box #2: Power Draw: Laptop Mining: Laptop & Network Power Draw: Profitability Calculator: Overall this has been a fun day playing around with a newer crypto currency and looking to see what can actually be done with the gear laying around your home! I've got a couple old xeon boxes in storage that I might have to drag out, strip down, and see what they can mine in a linux environment. These two boxes still see daily use, so the miners have been dialed down a little bit to still allow for a responsive & easy to use interface. Though those boxes I could just go full tilt inside linux as they'd serve no other purpose. If I get around to this I'll be sure to post additional results! Anyways, I hope this was helpful or atleast entertaining to some of you out there. 'Gobby Update: I had already walked away from making this post when it hit me I had made a huge omission. Look at those overclocks on the graphics cards. Look a little odd? When you fire up the mining software it down clocks the memory on the cards. So once you've started mining (atleast on water), you can start pulling your clocks up again. Though, make sure you close afterburner before you close your miner if you're ever going to stop. Because once the miner closes, it'll return your clocks to normal, which means you've now got some stupid AF overclocks going on. So yeah, remember that little note. As you can see, the screenshots were taken literally like 6-7 hours into mining so the overclocks are in full force! Okay, now I'm going to walk away again.