Mineros direct mining

1. You are going to dig bitcoin. You can ask Zhongguancun

2. It's OK for me to use it. It may be a bit troublesome at the beginning of installation. There are some adaptation problems. But they all solved it for me. Now with very stable, do not drop card, than I used before the other diskless more stable

3. Recently, a high load alarm occurred on a server installed with gitlab. CPU usage is as follows:

log in to the server and use top to check CPU usage. This program called minerd consumes a large amount of CPU, as shown in the figure below:

this program is not our normal service program. I think it must be hacked, Then I searched this program. It's really a mining Trojan horse program. Now that I know it's a Trojan horse program, let's see how it works, and then how to repair the back door

this program is placed under / opt / minerd. When it is determined that it is not related to the project, it is judged to be a Trojan horse program, decisively kills the process, and then deletes the minerd file under / opt

Exhibition

4. I recommend you go to oyuan.com.

5. Mining, graphics card temperature is high, is a normal thing. Just like you play games, graphics card in high-speed rendering, the temperature is getting higher and higher
in fact, you don't have to worry about this, and the graphics card won't be burnt out, if you are still a little worried! Can use ha Yu miners mining, graphics card temperature is not normal, playing games when high, and income will not rece
let's see what others say.

6. Yes, it's just that the fee is very low compared with the fee charged by other platforms, which is only 1%.

7. Install the driver of the graphics card
right click my computer - > properties - > Hardware - > device management
right click the graphics card to uninstall and then upgrade the driver

if there is a disk, the fastest way to install it is to use the disk
if it is an independent graphics card and you don't know what model it is and you lose the disk, you have to remove it to see the graphics card

8. There are still some new virtual digital coins that can be mined by computer, such as eth, Zec, Monroe and XRB
because the network wide computing power required by this kind of token is not high, the probability of hash collision of the computing power of personal computer can find out the answer in a short time, so as to obtain block rewards. However, this kind of token generally has little value or high risk, so it is not of great significance< br />
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mining risk:
1. Electricity charge problem:
if the graphics card "mining" needs to be fully loaded for a long time, the power consumption will be quite high, and the electricity charge will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
2. Hardware expenditure:
mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With dozens or even hundreds of graphics cards, the cost of hardware and other costs is very high, and there is a considerable expenditure in mining
in addition to the display card burning machines, some ASIC (application specific integrated circuit) professional mining machines are also on the battlefield. ASIC is specially designed for hash operation, and the computing power is also quite strong. Moreover, because their power consumption is far lower than that of the display card, they are easier to form scale, and the electricity cost is also lower. It is very difficult to compete with these mining machines, This kind of machine costs more
3. Currency security:
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
4. System risk:
system risk is very common in bitcoin, and the most common one is bifurcation. Bifurcation will lead to a drop in currency price and a sharp drop in mining income
however, many cases show that the forking will benefit the miners, and the forked competitive currency also needs the miners' computing power to complete the minting and trading process. In order to win more miners, the competitive currency will provide more block rewards and handling charges to attract miners. Risk makes miners.

9.

Computer algorithm is a step-by-step way to describe in detail how the computer transforms the input into the required output process, or algorithm is a specific description of the calculation process executed on the computer

no matter how complex the algorithm is, it must end and terminate after finite steps; That is, the steps of the algorithm must be limited. In any case, the algorithm can not fall into an infinite loop. The algorithm must be composed of a series of specific steps, and each step can be understood and executed by the computer, rather than abstract and fuzzy concepts

First of all, the algorithm must be correct, that is, for any group of inputs, including reasonable inputs and unreasonable inputs, the expected output can always be obtained. If an algorithm can get the expected output only for the reasonable input, but can't expect the output result in the abnormal situation, then it is not correct

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features

1, finiteness. An algorithm should contain limited operation steps, not infinite. In fact, "poverty" often means "within a reasonable range". If a computer is allowed to execute an algorithm that takes 1000 years to finish, it is poor, but beyond the reasonable limit, and people do not regard it as an effective algorithm

2. Certainty. Every step in the algorithm should be definite, not vague and ambiguous. Each step in the algorithm should not be interpreted as a different meaning, but should be very clear. In other words, the meaning of the algorithm should be unique, and should not proce "ambiguity"

3. There are zero or more inputs. The so-called input refers to the need to obtain the necessary information from the outside in the execution of the algorithm

4. One or more outputs. The purpose of the algorithm is to solve the problem, the algorithm without output is meaningless

5. Effectiveness. Every step in the algorithm should be executed effectively. And get the definite result