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1. Introduction to JumpServer Jumpserver is the world's first open source fortress machine, developed and open source by flying to cloud Internet company. "Fortress machine" is also called operation and maintenance security audit system. The core function of jumpserver is 4a. It uses GNU GPL v2 0 open source protocol, which is ...

Linux - Ubuntu web server development Linux - Ubuntu server development The interface between the server and the client is through Socket communication Socket communication has three elements: Target address of communication (ip address of server)Port number used (different protocols specify different ports, for example, port 25 corresponds ...

1) Experimental platform: punctual atom STM32MP157 development board 2) Purchase link: https://item.taobao.com/item.htm?&id=629270721801 3) Full set of experimental source code + manual + video download address: http://www.openedv.com/thread-318813-1-1.html 4) Official station B of punctual atom: https://space.bilibili.com/394620890 5) Punc ...

JVM fatal error log (hs_err_pid.log) analysis CrashAnalysis Function introduction This is a jvm crash analysis tool, which mainly analyzes the causes of jvm crash and common solutions. Mode of use java -jar CrashAnalysis-1.0-SNAPSHOT.jar ${hs_err_pid.log} ${hs_err_pid.log} is the log generated after the jvm crash. effect After the analys ...

During RabbitMQ installation, you should pay attention to:1. RabbitMQ depends on Erlang. Erlang needs to be installed first2. Erlang and RabbitMQ versions correspondhttps://www.rabbitmq.com/which-erlang.html 1, Install Erlang1. Install some required dependencies first: yum -y install gcc glibc-devel make ncurses-devel openssl-devel xmlto perl ...

Log management MySQL log default save location /usr/local/mysql/data Error log It is used to record the error messages that occur when MySQL is started, stopped or running. It is enabled by default log-error=/usr/local/mysql/data/mysql_error.log #Specify the save location and file name of the log General query log It is used ...

1, Linux system basic instructions and text editor 1. Basic instructions of Linux system 1.1 shutdown and restart (1) Shutdown: 1.shutdown -h //Turn it off immediately 2.shutdown -h 5 // Shutdown in 5 minutes 3.shutdow -h 20:25 //Shut down at 8:25 p.m 4.poweroff // Turn it of ...

1.IO process Any IO process must include two steps, the first is waiting and the second is copying Moreover, in the actual application scenario, the waiting time is often much higher than the copy time The core way to make IO more efficient is to minimize the waiting time Wait for IO ready: it means that the resources you want to obtain a ...

I What is LAMP? LAMP environment is an abbreviation of (Linux+Apache+ MySQL+PHP). It is a group of open source software commonly used to build dynamic websites or servers. At the same time, LNMP(Linux+Nginx+ MySQL+PHP) environment architecture is most contacted. Different from it, Apache is used as web page service and Nginx is used as web pag ...

5 network configuration and system management operation 5.1 view network IP and gateway (1) View virtual network editor (2) Modify virtual network card Ip (3) View gateway (4) View VMnet8 network configuration in windows Environment 5.2 configuring network ip addresses 5.2.1 ifconfig configuration network interface Ifconfig: n ...