Installing RocketMQ under Linux&Windows

1, Download from the official website Official download address This time, the current new release version is selected: 4.9.2. Download the binary version of the compressed package. Or directly Click download In Linux environment, use the following command to download: wget https://dlcdn.apache.org/rocketmq/4.9.2/rocketmq-all-4.9. ...

Posted by deveed on Thu, 28 Oct 2021 17:43:41 +0200

Train yolov4 tiny on Ubuntu 20.04

Train yolov4 tiny on Ubuntu 20.04 1, Data download 1.yolov4 Official download: https://github.com/AlexeyAB/darknet Network disk download link: https://pan.baidu.com/s/1HYiCANZZ4NPYFvMJ-cenFA Extraction code: 2rh0 2.yolov4-tiny.weights Official download: https://github.com/AlexeyAB/darknet/releases/download/darknet_yolo_v4_pre/yolov4-ti ...

Posted by ppowell on Thu, 28 Oct 2021 10:39:24 +0200

Penetration test prime:1

Range target: https://www.vulnhub.com/entry/prime-1,358/ After downloading the shooting range, you can see that the shooting range can be opened directly through vmware. The shooting range system is Ubuntu system. The startup screen is as follows: Here, VMnet selects nat mode, so the ip segment of the shooting range and kali's ip share ...

Posted by aztec on Wed, 27 Oct 2021 07:43:10 +0200

YUM command management and use of source package

YUM command management 1, YUM common commands yum list software name lists rpm -q for each package (both installed and uninstalled)View all warehouses using yum repolistinfo query software information rpm -qiReinstall reinstall rpm -ivhremove uninstall rpm -eprovides searchclean all clear cachemakecache create cache 1.1 installation pa ...

Posted by southeastweb on Tue, 26 Oct 2021 13:02:20 +0200

Linux foundation file search

Common file search tools in Linux mainly include locate and find. However, because the locate tool depends on its own index database / var/lib/mlocate/mlocate.db, it is rarely used to accurately find the latest data in the cache of the database. However, its advantage is that it will not traverse all files when searching, so as to ensure that t ...

Posted by balistic on Mon, 25 Oct 2021 15:03:21 +0200

[linux] network card overruns error reporting causes and Solutions

Environmental information: dx-hadoop57.dx: cpu: 40cOperating system: ceontos 6.7Deployment Services: DataNode, NodeManager, Impala services. 1, Preface: An error has been reported by the network card of a node before. As a result, presto task fails, HDFS reading slows down, and Yarn task execution slows down. Therefore, the indicator net. ...

Posted by nocontrol on Mon, 25 Oct 2021 05:25:33 +0200

Linux -- exit() function_ Description and use of exit() function and return

1, Overview 1. exit() function and_ The exit () function is used to terminate the process.2. Return is a C language keyword. It is mainly used for the return of a sub function and identifies the end of the sub function. 2, Function description   when the program executes to the exit() function or_ When using the exit() function, the pro ...

Posted by Crowly on Sun, 24 Oct 2021 02:28:22 +0200

Chapter 2 remote login service in linux

Experimental environment: westos-vmctl reset nodea westos-vmctl reset nodeb In the virtual machine nodea:   Perform the same operation in the virtual machine nodeb:   hostnamectl set-hostname westoshost139.westos.org      ## Modify virtual machine name 1, Openssh features 1. Purpose of sshd service ...

Posted by jallard on Sat, 23 Oct 2021 15:17:22 +0200

awk common syntax

The awk command is used for output, statistics, and other processing of records that match styles in a file. awk command syntax: awk pattern { ACTION } While awk reads the file, the variable $0 holds the entire line, the variable $1 holds the contents of the first field, $2 holds the contents of the second field,.... The variable NF holds ...

Posted by deemurphy on Thu, 21 Oct 2021 21:53:17 +0200

A40i Usage Notes: First physical drive HX711 (no device tree used)

1. Preface It was another late night, and I no longer know how many consecutive days I had no regular rest. Early in each day, I decided to go to bed earlier in the evening, but at night I came to think and study or to do something impulsively, so I quickly finished writing and sleeping. This is my first Linux driver based on the Full Log a40 ...

Posted by thom2002 on Thu, 21 Oct 2021 21:16:42 +0200