Everything you need to know about Bitcoin mining

Bitcoin Full Node: I repurposed some gaming computer parts and built a full node. (With Pics.)

I've been buying some Bitcoin lately and was interested in building a full node so I repurposed some old gaming computer parts that I had lying around.
Here's the computer specifications and costs of new parts:

Cost of new parts for this computer: $235.00 USD

My observations:

This computer is way overkill for a Bitcoin Full Node but works really great! I was unsure of what was really required for a computer to run a full node but after having this computer up and running for a few days I have a much better understanding.

It hardly uses the CPU at all. I think that this is why you can run a full node on a Raspberry PI. The CPU on this computer typically runs at less than 5% utilization and more like 2%. It is basically sitting at idle all the time.

I upped the data cache memory available in the Bitcoin GUI (Don't really know if this works or not?) to 5000 MB. The most RAM that I have used in several days of running has been less than 4 GB. (4000 MB)

Once you get it up and running you need to open port 8333 on your router or it won't allow other computers to connect to you. Once you have port 8333 open, 20 computers will be able to connect to you and you will be able to connect to 10. There is very little documentation in how to do this (No step by step.) because all routers are slightly different and use slightly different terminology. It is not really that difficult. What you really want to do is called "port forwarding" and you want to find those settings in your router and port forward port 8333 in both directions. (Hope that made some sense. I'm not very good with networks!)

My WiFi network and the connection to this computer is fast. I pay for 400 Mbps down and 20 Mbps up and I have a WiFi 6 router and a WiFi 6 adapter card in this computer. Speedtest says that this computer is connected at 380 Mbps down and 20 Mbps up. I'm about 40 feet away from the router.

The Bitcoin Full Node is always transferring data on the network. It seems to be in small packets/batches but it is always sending or receiving or both. It doesn't use much bandwidth at one time so shouldn't cause lag on your network. In my case it typically stays under 500 Kbps but will on occasion spike briefly to 2000 Kbps (2 Mbps).

I was very curious as to how much electricity this computer would use so that I could determine if I could afford to leave it on 24/7 or not. I plugged the computer into a watt meter that you can see in the pics. The computer swings between 32 and 35 watts while up and running on the Bitcoin network. This is like idle speed for this computer IMHO. 35 watts running 24 hours = 840 watt hours 840 watt hours X 30 days = 25200 watt hours or 25.2 Kwhs (Kilowatt hours is how you are charged by your utility) My utility charges $.12 per kilowatt hour so... 25.2 Kwh X $.12 = $3.03 USD per month. I hope I can afford that!

Here's some pics: Bitcoin Full Node from Repurposed Parts
submitted by pinellaspete to Bitcoin [link] [comments]

EmpireCrasher.exe - Why Humans should never have an intergalactic internet connection

When a new species enters the galactic community, quite a few things need to happen. After passing all the red tape ensuring the species isn't a terroristic nightmare, the species needs a connection to GalNet.
We hooked up eight different subspace nodes to link Humanity's infrastructure to ours, each one capable of fifteen exabytes per second. Protocol said a planet of their size and level of technological achievement should be comfortable on six, but we've been wrong before, and wrong we were.
We flipped the switch, opening the floodgates of intergalactic communication. Libraries began downloading billions of books from many thousands of cultures, hospitals began scouring the archives for medical treatments. Blueprints for advanced tech, histories of species and recipes for strange meals began flooding into the Human homeworld.
Of course, not everything Humans do is practical. When they discovered the Talizar Snow Leopard looked similar to a kitten, albeit with the wrong number of appendages, they went nuts. A sudden burst of traffic to the Talizar home world crippled their internet infrastructure, somehow resulting in a few fatalities.
Every time something from another planet went viral, the server that hosted the content would explode. Yes, explode, with fire and everything. Let's just say that when most species discovers that you can get a 600-meter long Prismaridium Sea Dragon drunk, millions of people don't all want to see videos of it at once.
Two of our subspace nodes had already been destroyed. One went down when humans learned that the people of Kasivak Prime looked and acted like giant Weeble Wobbles. The other went down when they discovered that these people enjoy sumo wrestling.
By the ten minute mark, several militaries felt the need to step in. Those server outages looked suspiciously like targeted attacks, and when you take out critical infrastructure, it's hard to see it as anything other than an act of war. By the fifteen minute mark, eleven different species had declared war on Humanity. Thankfully, ships travel much slower than news that the galactic equivalent of the Guinness Book of World Records existed. It listed the longest distance traveled by strapping yourself to a firework as only 2,000 kilometers.
A wave of videos starring humans strapping themselves to fireworks and shooting off into the stratosphere took down a third node. A fourth was taken down when one of them ran into it, unleashing a very colorful explosion that could be seen from the surface.
At the twenty five minute mark, a new problem emerged. Humans have a knack for writing malware, and while they also have a knack for defending against it, most species do not. Hundreds of star systems started reporting problems. A ransomware program started releasing terabytes of top secret information every minute until the Prismirodium sent "$10,000 in cash" to an address in western Texas. This was challenging because they were about 200 light years away, which would take weeks even with a very fast ship.
A wave of self-replicating malware hijacked one of the subspace nodes, injecting copies of itself into every connection that wasn't well encrypted. Once it discovered that some alien systems didn't check the files they received at all, it started replacing them with 200 gigabyte packages of every nasty virus it could find. The extra bandwidth destroyed the node.
Two fleets of automated war ships that were engaged in a battle suddenly stopped their conflict and began salvaging themselves for raw metal, discarding valuable tech and destroying their engines in the process. The malware responsible was designed to make construction vehicles on Earth sell themselves for scrap.
Within two minutes of opening their networks to earth, the entire economy of Trivek IV was transferred to a Nigerian prince. This email appeared to come from the Observer, a gas giant-sized computer that managed surveillance of an entire sector. It now used every ounce of it's processing power to mine bitcoin and send scam emails to the galaxy.
No one had ever expected malware on Human system to be so common and so complex. Humanity figured our technology would handle it, and when they brought it up, we thought they were joking. The chaos this mistake caused was immense.
At the forty eight minute mark, Google began indexing the entirety of GalNet, and all hope was lost. Their apparently unlimited supply of bandwidth destroyed the two of the nodes instantly, and the eighth and final node went down in a ball of flame after all of Humanity's internet traffic was channeled through it.
With that, Humanity had been cut off from GalNet, but the damage was done. The galaxy would probably spend decades cleaning the malware from their system. In forty five minutes, multiple empires had crashed, and at least one accidental genocide took place.
The Galitek Empire was affected the most. Their entire system, from military vessels to government mainframes to the robots that swept their floors was under full malware control. The culprit was literally started as a joke from a freshmen in college studying for a computer science degree. It wasn't designed to work, and could be detected by even the worst of anti-malware programs.
Unfortunately, the Galitek empire put all their eggs in one basket. All of their internet traffic was channeled through a single, massive firewall. This cleaned everything, and managed to evade all the adware Humanity could throw at them. Unfortunately, this firewall also hosted some extremely high definition video of a species that looked a lot like Groot, so you can imagine what happened.
The great firewall fell. Quite literally, actually, it landed on the planet it was orbiting, causing an earthquake that leveled most of it. This joke of a virus was the first one to get it, and the chaos began instantly.
The virus secretly took control of the military research division of the empire, and began constructing a fleet of warships designed to deploy large mechs to ground fights. Two models existed, one modeled after a standard bipedal species designed to use it's arms as melee weapons if needed. The other looked like a combination of a large reptile and a pile of guns. It was dripping with missiles, plasma cannons and other weapons.
The military went on a tour, showing off their new toys to the people whose tax dollars paid for them. On the final day, their pride and joy began recreating the classic Earth movie "Godzilla versus King Kong." Millions died, and the capital city was destroyed. Fighting alongside them was every car, hovercraft and self-aware toaster within range. If they didn't have a gun, they ran into their enemy or tossed each other at them.
By the end of the day, Humanity had been accused of using their malware to take over the galaxy. Their "weaponized viral videos" got them charged for war crimes, and a grand total of 705 different worlds declared war on them. Estimates for the amount of infrastructure damage are still being estimated, but it's expected to be in the quintillions.
Humanity promised to teach the galaxy how online security works, and quickly became the leading authority in avoiding malware. Once people knew how powerful malware could be, it was quickly added to the growing list of military tactics. Once the galaxy has been given a few months to figure out how security works, Humanity plans to build seventy five subspace nodes to make sure they don't explode.
submitted by Ajreil to HFY [link] [comments]

Blockchain scaling problem And ICO Doom! Internet Speed Test - Internet speed meter for pc and mobile bangla tutorial 2019 PSA: Bitcoin Has Been Hijacked Bitcoin: A Positive Feedback Loop That Can Make You Rich! + Video of Lighting Network In Japan Bar What is a Bitcoin Node? - Step by Step Explanation - YouTube

In this situation, not really. Bitcoin's proof-of-work scheme means that if you see two different versions of the blockchain, whichever chain is longer will (with very high probability) be the globally-accepted version. But that assumes you have the ability to communicate with at least one non-malicious node. You make no money running a full node currently, protocols may change in the future. There are still a few good reasons to run a full node though. It's cool, you get to contribute to the health of the bitcoin community more than just filling up r/bitcoin with posts (i.e. warm fuzzy feeling). You can connect your hot wallet to your own full node ... The number of bitcoin email scams has been growing in 2020 and the authorities in several countries have warned of new blackmail tactics used in threatening email scams asking for bitcoin. As the world scrambles to cope with the coronavirus pandemic and economic crisis, email scams are taking advantage of people’s fear to extort bitcoin.... Great! Now our Raspberry Pi is setup, we’ve got the latest-and-greatest updates, and enough disk space to host a full node. On to Step 2. 2. Compile, configure, sync, and broadcast a full Bitcoin node. First, install the pre-requisites needed to compile and run Bitcoin. Bitcoin News is the world's premier 24/7 news feed covering everything bitcoin-related, including world economy, exchange rates and money politics.

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Blockchain scaling problem And ICO Doom!

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