Ethereum monitoring tools

1. Ethereum one click coin, the specific technical content is not very clear, but this operation is safe? Does digital financial security allow the operation of one key currency issuing?

2. These are generally they will pull QQ group, and then the wechat group will sell more in the group.

3.

First of all, we need to understand what is MLM:

MLM refers to the illegal behavior of organizers and development personnel to obtain wealth by calculating and paying remuneration to the developed personnel based on the number or performance of the personnel directly or indirectly developed, or requiring the developed personnel to pay certain fees to obtain the qualification to join. The essence of MLM is "Ponzi scheme", that is to say, the money of later comers is distributed to the income of former comers

However, the new type of MLM does not restrict personal freedom, does not accept ID cards and mobile phones, and does not take classes collectively. Instead, it uses capital operation as a banner to pull people to cheat money, drives luxury cars, wears gold and silver, and uses money to attract your relatives and friends to join in, and finally makes you lose all your money

then judge whether the ether coin is a kind of MLM, whether you need membership fee, whether you need to ask your relatives and friends to join

extended materials:

Ethereum is an underlying technology platform on which developers can create distributed applications. With the application, there will be transactions. With a transaction, you need money to complete the transaction. In this way, money has value, and investors' investment has a return. If the transaction volume on the platform is larger and larger, the demand for money will be higher and higher, and the money will be more and more valuable

from the perspective of image, bitcoin creates a kind of digital gold, while Ethereum creates a country, and Ethereum is the credit currency of the country

after bitcoin, there are thousands of digital virtual currencies in the world, many of which are completely deceptive in the guise of "digital currency". Previously, Haikou Municipal Public Security cracked down on a pyramid selling organization called "Eurasian currency", which operated on the internet pyramid selling platform, making more than 40000 investors cheated, involving 4.06 billion yuan. The field of virtual currency has just started, so we need to be cautious

resources : Ethernet money network

4. With the blockchain browser, bitcoin has its own browser. Ethereum and bitcoin are both used. The token based on Ethereum can also be queried on Ethereum's blockchain browser, and usdt can be queried on bitcoin's blockchain browser

5. Most of Linux users are developers and researchers, and servers are also used more
windows, making money first
it's hard to say who is strong. It's estimated that no one will convince anyone!

6. How to check whether the other party has transferred money? Need to check your card information.

7. In fact, both gikee and search are tools for monitoring data on the chain, and they are also tools for searching Eth and erc20. However, there are many differences between the two. The biggest difference is that gikee is the world's first app, and search is the PC end. In addition, as the app end, gikee has change reminder, which can receive information reminder on the chain in real time. So, I think, relatively speaking, gikee is more convenient.

8. You can see the price through tools or exchanges, but I've been using fire coin for a long time, and I have a good reputation in the instry. You can download the app first to experience it. I feel it's very good to use it for a while. Here, we implement strict risk control management and stabilize the operation.

9. Here are the command names by function
monitor the overall bandwidth usage - nload, bmon, slurm, BWM ng, CBM, speedometer and netload
monitor the overall bandwidth usage (batch output) - vnstat, ifstat, dstat and collect
the bandwidth usage of each socket connection - iftop, iptraf, tcptrack, pktstat Netwatch and trafhow
bandwidth usage of each process -- nethogs
1. Nload
nload is a command-line tool that allows users to monitor inbound and outbound traffic separately. It can also draw charts to show inbound and outbound traffic, and the view scale can be adjusted. It's easy to use and doesn't support many options
therefore, if you only need to quickly view the total bandwidth usage, and do not need the details of each process, nload is very convenient to use
$nload
install nload: Fedora and Ubuntu have nload in the default software library. CentOS users need to obtain nloads from the EPEL software library
# Fedora or CentOS $Yum install nload - y # Ubuntu / Debian $sudo apt get install nload
2. Iftop
iftop can measure the data transmitted through each socket connection; It works differently from nload. Iftop uses pcap library to capture the packets in and out of the network adapter, and then summarizes the packet size and number to find out the total bandwidth usage
although iftop reports the bandwidth used by each connection, it cannot report the process name / number (ID) participating in a nested word connection. However, based on the pcap library, iftop can filter traffic and report the bandwidth usage of the selected host connection specified by the filter
$sudo iftop - N
n option can prevent iftop from resolving IP address to host name, which will bring extra network traffic
install iftop: Ubuntu / Debian / Fedora users can get it from the default software library. CentOS users can get it from EPEL
# Fedora or CentOS Yum install iftop - y # Ubuntu or Debian $sudo apt get install iftop
3. Iptraf
iptraf is an interactive and colorful IP LAN monitoring tool. It can display the amount of data transferred between each connection and between hosts. Here is a screen shot
$sudo iptraf
install iptraf:
# CentOS (basic software library) $Yum install iptraf # Fedora or CentOS (with EPEL) $Yum install iptraf ng - y # Ubuntu or Debian $sudo apt get install iptraf iptraf ng
4. Nethogs
nethogs is a compact & quot; net top" Tool, which can display the bandwidth used by each process, sort the list, and rank the process that consumes the most bandwidth at the top. In case of a sudden surge in bandwidth usage, users can quickly open nethogs to find the process that causes the surge in bandwidth usage. Nethogs can report the process number (PID), user and path of the program
$sudo nethogs
install nethogs: users of Ubuntu, Debian and fedora can get it from the default software library. CentOS users need EPEL
# Ubuntu or Debian (default software library) $sudo apt get install nethogs # Fedora or CentOS (from EPEL) $sudo Yum install nethogs - y
5. Bmon
bmon (bandwidth monitor) is a tool similar to nload, which can display the traffic load of all network interfaces on the system. The output also contains charts and sections with detailed information at the packet level
install bmon: users of Ubuntu, Debian and fedora can install it from the default software library. CentOS users need to install repoforge because there is no bmon in EPEL
# Ubuntu or Debian $sudo apt get install bmon # Fedora or CentOS (from repoforge) $sudo Yum install bmon
bmon supports many options and can proce HTML reports. For more information, see the reference man page
6. Slurm
slurm is another network load monitor, which can display the statistical information of the device and also display ASCII graphics. It supports three different types of graphics, each of which can be activated by using the C key, s key and l key. Slurm is simple and cannot display any further details about the network load
$slurm - S - I eth0
install slurm
# Debian or Ubuntu $sudo apt get install slurm # Fedora or CentOS $sudo Yum install slurm - y
7. Tcptrack
tcptrack is similar to iftop. Pcap library is used to capture packets and calculate various statistical information, such as bandwidth used by each connection. It also supports standard pcap filters that can be used to monitor specific connections
install tcptrack: Ubuntu, Debian and fedora are included in the default software library. CentOS users need to get it from repoforge because it is not in EPEL
# Ubuntu, Debian $sudo apt get install tcptrack # Fedora, CentOS (from repoforge software library) $sudo Yum install tcptrack
8. Vnstat
vnstat is a little different from most other tools. It actually runs background services / daemons and keeps track of the size of the data transferred. In addition, it can be used to proce reports showing the history of network usage
$service vnstat status * vnstat daemon is running
running vnstat without any options will only display the total amount of data transferred since the daemon has been running< br />$ vnstat Database updated: Mon Mar 17 15:26:59 2014 eth0 since 06/12/13 rx: 135.14 GiB tx: 35.76 GiB total: 170.90 GiB monthly rx | tx | total | avg. rate ------------------------+-------------+-------------+------------- Feb ' 14 8.19 GiB | 2.08 GiB | 10.27 GiB | 35.60 kbit/s Mar ' 14 4.98 GiB | 1.52 GiB | 6.50 GiB | 37.93 kbit/s ------------------------+-------------+-------------+------------- estimated 9.28 GiB | 2.83 GiB | 12.11 GiB | daily rx | tx | total | avg. rate ------------------------+-------------+-------------+------------- yesterday 236.11 MiB | 98.61 MiB |334.72 MIB | 31.74 kbit / s today 128.55 MIB | 41.00 MIB | 169.56 MIB | 24.97 kbit / S- l" Option (real time mode). It then shows the total amount of bandwidth used by inbound and outbound data, but very precisely, without any internal details about host connections or processes
$vnstat - L - I eth0 monitoring eth0... (press ctrl-c to stop) Rx: 12 kbit / s 10 P / s TX: 12 kbit / S 11 P / s
vnstat is more like a tool for making historical reports, showing how much bandwidth is used every day or in the past month. It is not strictly a tool for real-time monitoring network
vnstat supports many options. Please refer to the manual page for details of which options are supported
install vnstat
# Ubuntu or Debian $sudo apt get install vnstat # Fedora or CentOS (from EPEL) $sudo Yum install vnstat
9. BWM ng
BWM ng (next generation bandwidth monitor) is another very simple real-time network load monitoring tool, which can report summary information, Displays the transmission speed of different data in and out of all available network interfaces on the system< br />$ bwm-ng bwm-ng v0.6 (probing every 0.500s), press ' h' for help input: /proc/net/dev type: rate / iface Rx Tx T ot================================================================= == eth0: 0.53 KB/s 1.31 KB/s 1.84 KB lo: 0.00 KB/s 0.00 KB/s 0.00 KB----------- --------------------------------------------------------------------------------------------------Total: 0.53 KB / s 1.31 KB / s 1.84 KB / s
if the console is large enough, BWM ng can also use curses2 output mode to draw bar graph for traffic
$BWM ng - O curses2
install BWM ng: on CentOS, you can install BWM ng from EPEL
# Ubuntu or Debian $sudo apt get install BWM ng # Fedora or CentOS (from EPEL) $sudo apt get install BWM ng
10. CBM: color bandwidth meter
this is a small and simple bandwidth monitoring tool, which can display the traffic through various network interfaces. No further options, just real-time display and update traffic statistics
$sudo apt get install CBM
11. Speedometer
this is another small and simple tool, which only draws beautiful graphics to show the inbound and outbound traffic transmitted through a certain interface
$speedometer - R eth0 - t eth0
installing speedometer
$sudo apt get install speedometer for Ubuntu or Debian users
12. Pktstat
pktstat can display all active connections in real time and show which data is transmitted through these active connections at the speed. It can also display the connection type, such as TCP connection or UDP connection; If an HTTP connection is involved, details about the HTTP request are also displayed
$sudo pktstat - I eth0 - NT $sudo apt get install pktstat
13. Netwatch
netwatch is a part of netdiag tool library. It can also display the connections between the local host and other remote hosts, and display which data is transmitted at the speed of each connection
$sudo netwatch - e eth0 - NT $sudo apt get install netdiag
14. Trafshow
like netwatch and pktstat, trafshow can also report the current active connections, the protocols they use, and the data transfer speed on each connection. It can use pcap type filter to filter the connection
only monitor TCP connections
$sudo trafshow - I eth0 TCP $sudo apt get install netdiag
15. Netload
the netload command displays only a short report on the current traffic load and the total number of bytes transmitted since the program was started. There are no more features. It's part of netdiag
$netload eth0 $sudo apt get install netdiag
16. Ifstat
ifstat can display network bandwidth in batch mode. Output in a format that allows users to log and analyze using other programs or utilities
$ifstat - t - I eth0 0.5 time eth0 HH: mm: SS KB / s in KB / s out 09:21 2.62 2.80 09:59:22 2.10 1.78 09:59:22 2.67 1.84 09:59:23 2.06 1.98 09:59:23 1.73 1.79
install ifstat: Ubuntu, Debian and fedora users have it in the default software library. CentOS users need to get it from repoforge because it is not in EPEL
# Ubuntu, Debian $sudo apt get install ifstat # Fedora, CentOS (repoforge) $sudo Yum install ifstat
17. Dstat
dstat is a widely used tool (written in Python language), which can monitor different statistical information of the system, use batch processing mode to report, or use the correlation number