Overall understanding of system D instructions
systemctl understanding
There are two ways of Linux service management: service and systemctl
systemd is the latest initialization system (init) of Linux system. Its function is to improve the startup speed of the system, start fewer processes as much as possible and start more processes concurrently as much as possible.
The process manageme ...
Posted by bluesoul on Sun, 08 May 2022 21:57:21 +0300
VirtualBox installation CentOS related network configuration and problems
VirtualBox installation CentOS related network configuration and problems
1. General description
(1) This article does not cover how to install CentOS. If you need this part, you can refer to other blog posts. (2) After installing CentOS, there are many wonderful problems in the network. This paper aims to give a reference scheme on how to co ...
Posted by villager203 on Sun, 08 May 2022 13:34:31 +0300
Crazy God Theory docker basic chapter
Learning links
Crazy God said station B video
Learning docker
Using docker
docker official document
dockerhub official website
1, Docker overview
1. Why does docker appear?
One product: development – online two sets of environments! Application environment, application configuration! Development - operation and maintenance. Question ...
Posted by py343 on Sun, 08 May 2022 13:31:22 +0300
Can a port number be bound by two processes at the same time?
1, Can a port number be bound by two processes at the same time?
According to the binding of port number, we will discuss the following situations:
The two processes establish TCP server s respectively and use the same port number 8888
Two processes establish UDP server s respectively and use the same port number 8888
Two processes, one esta ...
Posted by Collin on Sun, 08 May 2022 07:17:03 +0300
Linux network status tool ss command usage details
The SS command is used to display the socket status It can display PACKET sockets, TCP sockets, UDP sockets, DCCP sockets, RAW sockets, Unix domain sockets and other statistics It displays more tcp and state information than other tools It is a very practical, fast and effective new tool to track IP connections and sockets SS command The follo ...
Posted by mackevin on Sun, 08 May 2022 06:57:12 +0300
Technology sharing | common causes of MySQL startup failure
Author: Yao yuan
Focus on Oracle and MySQL databases for many years, Oracle 10G and 12C OCM, MySQL 5.6, 5.7, 8.0 OCP. Now Dingjia technology serves as a technical consultant to provide database training and technical support services for colleagues and customers.
Source of this article: original contribution * produced by aikesheng o ...
Posted by squalls_dreams on Sun, 08 May 2022 03:53:20 +0300
[Share]CPU Control in Embedded Linux System
content
author
test environment
introduce
tool
CPU isolation
Process CPU Affinity
interrupt CPU affinity
Process priority
other
author
Hank FU Hanjie Fu hankf@xilinx.com
test environment
Xilinx ZCU106 board
Xilinx VCU TRD2020.1
introduce
In an embedded Linux system, Linux directly manages all CPU s. By default, the goal of the system is t ...
Posted by jokobe on Sun, 08 May 2022 03:25:20 +0300
Fundamentals of C programming under Linux
Vi: Vi mode: Vi has three modes: command line mode, insert mode and command line mode. The functions of each mode are described in detail below Line introduction. (1) Command line mode: When users edit files with Vi, they initially enter the general mode. In this mode, you can move the cursor up and down to "delete character" or " ...
Posted by mu-ziq on Sun, 08 May 2022 02:54:50 +0300
Detailed steps for setting up a cluster
zookeeper cluster construction
1, Cluster planning
Install three virtual machines. The IP address and host name are set as follows
IP
host name
Software
192.168.1.66
SQG
JDK\zookeeper
192.168.1.2
hadoop1
JDK\zookeeper
192.168.1.3
hadoop2
JDK\zookeeper
2, Environment preparation (the following three virtual machines need to be ope ...
Posted by MentalMonkey on Sat, 07 May 2022 23:48:20 +0300
centos u disk installation and LNMP
1. Preliminary preparation:
Download centeos 7.5: https://mirrors.aliyun.com/centos-vault/7.5.1804/isos/x86_64/
Download floppy disk pass, the registration code is Baidu.
download putty, winscp
2. Operation steps:
u disk production:
Open UltraISO tool File -> Open Select your ISO file.
Startup item Select to write the hard disk image ...
Posted by AliceG on Sat, 07 May 2022 16:36:06 +0300