Stop virtual currency

1. Users can buy bitcoin, and at the same time, they can use computers to do a lot of calculations according to the algorithm to "mine" bitcoin. When users "mine" bitcoin, they need to use the computer to search for 64 bit numbers, and then compete with other gold miners by repeatedly solving puzzles to provide the required numbers for the bitcoin network. If the user's computer successfully creates a set of numbers, then they will get 25 bitcoins. Due to the decentralized programming of the bitcoin system, only 25 bitcoins can be obtained every 10 minutes. By 2140, the maximum number of bitcoins in circulation will reach 21 million. In other words, bitcoin system is able to achieve self-sufficiency, resist inflation through coding, and prevent others from destroying these codes

warm tips:
1. According to the notice and announcement issued by the people's Bank of China and other departments, virtual currency is not issued by monetary authorities, does not have monetary attributes such as legal compensation and compulsion, is not a real currency, does not have the same legal status as currency, and cannot and should not be used as currency in the market, Citizens' investment and transaction of virtual currency are not protected by law
2. Before investing, it is recommended that you first understand the risks existing in the project, and clearly understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market
3. The above explanation is for reference only. Investors should not use such information to replace their independent judgment or make decisions only based on such information, which does not constitute any investment operation

response time: February 5, 2021. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html

2. In addition to bitcoin, there are many other virtual currencies in the virtual world< Liteoin (LTC) was released on October 7, 2011, and is currently the most valuable counterfeit currency, accounting for about 2% of BTC's market value. The current unit price is US $2.31, with a total currency value of US $38 million

this is also a distributed (decentralized) digital currency. Unlike the sha256 mining algorithm used by bitcoin, LTC adopts scrypt algorithm. Scrypt algorithm uses sha256 as its subroutine, and scrypt itself needs a lot of memory. Each hash is used as the seed of the input, and then it needs a lot of memory to store another pseudo-random sequence to generate the pseudo-random points of the sequence and output the hash value. In the mining of BTC (bitcoin), it is not enough to rely on simple graphics card mining (it takes about ten to dozens of days to dig a BTC with general configuration graphics card). The emergence of various expensive mining machines has raised the threshold for ordinary people to get BTC through mining, while LTC has certain advantages in using PC graphics card mining This passage comes from Zhihu.)

compared with BTC, litecain has made a little improvement in technology. If BTC is gold now, LTC is silver for the time being

the biggest advantage of litecoin is that it can confirm the authenticity faster. The virtual currency is designed and maintained by Charles Lee. Bitcoin transactions need to be verified, and the average verification time is more than 10 minutes. Most transaction websites need 1 hour to verify. The average transaction confirmation time of liteoin is 2.5 minutes. Developers claim that shortening the verification time increases the practicability of virtual currency. The bitcoin mining efficiency of customized machine and AMD GPU is the highest, making it almost unprofitable for miners using CPU mining. Litecain's mining excludes GPUs and custom processors, so it doesn't rely too much on a small number of professional miners

ppcoin

ppcoin (PPC) was released on August 19, 2012, which has improved the original technology of BTC. Use proof of make and add the concept of coin age

ppcoin is a bifurcated project of bitcoin, which aims to achieve energy efficiency and maintain the best performance of the original bitcoin as far as possible. The unit price of ppcoin is US $0.22 and the total currency value is US $4 million

ppcoin does not have a fixed upper limit of money supply, but it does not mean that ppcoin has obvious inflation compared with bitcoin. Bitcoin can be compared to gold. The annual inflation rate of gold is about 1-3%. Although gold has no known upper limit of money supply, we still know that it is a reliable scarce commodity

ppcoin has two types of casting: work certificate and equity certificate. The coinage rate of working proof is affected by Moore's law, which depends on the doubling of our working proof ability. What we all know is that Moore's law will eventually come to an end. By then, the ppcoin of inflation may be close to the gold level. The annual maximum inflation rate of certificate of equity is 1%. At the same time, ppcoin's transaction costs were destroyed to fight inflation. So on the whole, the coin design of ppcoin is still a very low inflation design in the future, which can be comparable with bitcoin<

ppcoin's reward is similar to lottery, which will determine the winning probability according to the number of ppcoin held by miners. Sunny king, one of the founders, said that their design is based on a new concept of long-term energy efficiency

terracoin

terracoin (TRC) was released on October 26, 2012, with a total currency of 42 million. The speed of each block is 2 minutes, slightly faster than LTC. There is not much special in technology, similar to the proction of BTC halved every four years

however, the operation team seems to have a strong business background and may be better than other bitcoins in circulation. The development of virtual currency is getting more and more attention. Now some teams with business background will accelerate the development of virtual currency

namecoin

namecoin is a distributed domain name system based on bitcoin technology. Its principle is the same as bitcoin. The first release date of this open source software is April 18, 2011

namecoin is generated from an original block which is different from bitcoin's main trading block. It uses a new blockchain, which is independent of bitcoin's blockchain. Because it is based on bitcoin, the security, distribution, robustness, encryption and migration of domain names are guaranteed mathematically. You can dig bitcoin and namecoin at the same time

this project was discussed and proposed by bitdns, which is mainly dissatisfied with the defects of DNS. The only top-level domain name of namecoin is. Bit. It costs namecoin to register a. Bit domain name

in addition, Q currency, Shanda currency, starting point currency and various online game currencies are also virtual currencies.

3. Port 445 needs to be closed. The closing methods of port 445 are as follows:
1. Open control panel - system and security - Windows Firewall, and click on the left to start or close windows firewall
2. Select Start firewall and click OK
3. Click Advanced Settings
4. Click inbound rule and create new rule
5. Select port, next step
6. Specific local port, enter 445, next step
7. Select block connection, next step
8. Configuration file, select all, next step
9. Name, which can be entered at will and completed
XP system processing flow
1. Open the control panel, security center, windows firewall in turn, and select enable
2. Click start, run, enter CMD, and confirm to execute the following three commands: net stop RDR, net stop SRV, and net stop NetBt

4. Network security experts suggest that users should switch off the network, that is, first unplug the network cable and then switch on, which can basically avoid being infected by blackmail software. After power on, you should find a way to put on a security patch as soon as possible, or install the defense tools launched by various network security companies, so that you can connect to the Internet. It is suggested that the important files in the computer should be backed up to the mobile hard disk and U disk as soon as possible, and the disk should be saved offline after the backup. At the same time, we should be vigilant against unknown links, files and e-mails<

temporary solution:
1. Turn on the system firewall
2. Use the advanced settings of the system firewall to block the connection to port 445 (this operation will affect the service using port 445)
3. Turn on the system automatic update and detect the update for installation
the processing flow of win7, win8 and win10
1. Open the control panel - system and security - Windows Firewall, Click on the left to start or close windows firewall
2. Select Start firewall and click OK
3. Click Advanced Settings
4. Click inbound rule and create new rule
5. Select port, next step
6. Specific local port, enter 445, next step
7. Select block connection, next step
8. Configuration file, select all, next step
9. Name, which can be entered at will and completed
XP system processing flow
1. Open the control panel, security center, windows firewall in turn, and select enable
2. Click start, run, enter CMD, and confirm to execute the following three commands: net stop RDR, net stop SRV, and net stop NetBt

5. The closing methods of port 445 are as follows:
1. Open control panel - system and security - Windows Firewall, and click on the left to start or close windows firewall
2. Select Start firewall and click OK
3. Click Advanced Settings
4. Click inbound rule and create new rule
5. Select port, next step
6. Specific local port, enter 445, next step
7. Select block connection, next step
8. Configuration file, select all, next step
9. Name, which can be entered at will and completed
XP system processing flow
1. Open the control panel, security center, windows firewall in turn, and select enable
2. Click start, run, enter CMD, and confirm to execute the following three commands: net stop RDR, net stop SRV, and net stop NetBt

6. Return the result of ifconfig
eth0 to awk for processing
where - F & # 39;:|< br />+'
this is a separator defined by awk and then matched with "BCAST & quot;, Take the content of the fourth column
since your command is not universal, you can't output the result here, but you should intercept the broadcast address

7. 1、 Shut down and disable the server service. Open CMD with administrator's permission and run:

net stop server

SC config lanmanserver start = disabled

2. Open firewall and disable port 445. Open the CMD with administrator permission and run the following script (provided by Jin an):

Netsh firewall set opmode enable

Netsh advfirewall firewall add rule name = & quot; deny445" Dir = in protocol = TCP localport = 445 action = block

3. For Windows XP users who no longer provide patches, open CMD and run (remember to disable related services):

net stop RDR

net stop SRV

net stop NetBt

4, You can patch it directly:

{ url:http%3A , text:Microsoft Security Bulletin ms17-010 - serious}

lazy solution with external network:

use 360nsa Arsenal immunization tool, download address:

in addition, for important files, leave more backup.

8. "Ding Lingling..." the class bell rang, and the students all sat in their seats. Look at the timetable, this class is a Chinese class, and we have to recite the text. When it comes to reciting the text, the whole class's head seems to explode. Mr. Jin came with a Chinese book. Today is different, the teacher no longer let us carry each other at the same table. You see, the teacher began to draw on the blackboard. Let's read the text first, understand the main idea of the text, look up, wow! The blackboard is full of beautiful pictures, and every part of the text is painted. The little swallow here flies under the willow tree, and the little swallow on the wire over there becomes a note on the staff... "Students, now, let's look at the picture on the blackboard and try to recite the text!" Teacher Jin said with a smile. At the same time, she also used her hands to draw, sometimes doing the little swallow flying action, sometimes doing the breeze blowing willows,... Teacher Jin's exaggerated action made the students giggle. Some students learn the teacher's appearance while reciting, which makes teacher Jin laugh“ Ha ha ha... "Unconsciously, we have recited the text in laughter, and those beautiful pictures are deeply imprinted in our minds. In the future, every time we recite the text, Mr. Jin will use some different methods to let us recite the text quickly, but I think this class is the most interesting and unforgettable!

9.

Recently, the price of dog coin has risen sharply, which makes Dog Coin the most valuable currency in the world. But this kind of currency can be invested. If it is feasible to invest now, is it feasible? From a certain point of view, this is a stock storm, for Dog Coin investment, we need to be careful

dog coin is a kind of virtual currency, but it has attracted great attention all over the world. Many people invest in dog coin at the right time and then sell it at a high price, which brings them huge wealth. But is this really an investment to make a fortune? Let's not forget that the stock itself is an unstable project. When someone becomes rich by investing, the corresponding person will be severely punished. Not everyone will become a winner, not everyone will enter at the lowest point, so as to obtain huge benefits

let's take a look at the origin of dogcoin, and analyze whether dogcoin is worth further investment:

< blockquote >

dogcoin was born because of its name, logo (Japanese Chaigou) culture and strong grass-roots flavor. Recently, chives want to imitate the game post station to raise dogcoin to $1. The dog money frenzy is an extension of the anti Wall Street movement, game stop and WSB front, and a manifestation of the wave of American populism

< / blockquote >

as you can see, dog coin is similar to the previous virtual currency scam. At the beginning, it blew its name to the sky, but in the end, the economy of players is not very large. On the contrary, dog coin is booming in the stock market, which is exactly what dog coin wants to see. All virtual things need to consider the authenticity of things first. After all, it is a virtual thing, which is uncontrollable. If you invest rashly now, if the swindler closes, then the player will lose nothing in a moment

what you see now is that things are going crazy for a while. If things go wrong, there must be demons. So please shine your eyes and don't be at a loss