Programmer Group

preface After sharing how to transplant lvgl, an open source gui library, to run on your own development board, I saw a message asking if you had transplanted the official demo routine. Today, I just have time to try to transplant the official demo. The following is the general process. 1, Preparatory work Before transplanting the of ...

catalogue What is LVS? Composition of LVS What is a cluster? Type of cluster NAT mode TUN mode LVS   DR mode Configure http load balancing in DR mode of lvs Environmental Science: Deployment: deploy LVS configuration definition cluster What is LVS? LVS - Linux Virtual Server, that is, Linux Virtual Server (virtual ...

1. Show / etc/passwd Lines in the file that do not end with / bin/bash; grep -v "/bin/bash$" /etc/passwd 2. Find the two or three digits in the / etc/passwd file; grep -E '\<[0-9]{2,3}\>' /etc/passwd 3. Find the line in the / etc/rc.d/rc.sysinit or / etc/grub2.cfg file that starts with at least one white space character and is foll ...

introduction In the enterprise information application environment, the security and response speed of the server need to configure the response parameters according to the actual situation to achieve the optimal user experience. The default Nginx installation parameters can only provide the most basic services, and also need to reconcile ...

touch command: The touch command is used to create files and modify the time attributes of files or directories, including access time and change time. If the file does not exist, a new file will be created.ls -l can display the time record of the fileUser permissions: all users Syntax: touch [-acfm][-d<Date time>][-r<Reference docu ...

Catalog 1. Docker image creation 1. Create based on existing mirrors 2. Create based on local templates 3. Create based on Dockerfile (1) Federated File System (UnionFS) (2) Mirror loading principle (3) Why is centos in Docker only 200M in size? (4)Dockerfile 2. Layering of Docker mirror structure 1. Common instructions for Dockerfile ...

Today, I will continue to introduce you to the basic knowledge of Linux. The main content of this article is the branch of Linux shell script. 1, shell branch -- if statement form In shell script, we usually use if statement to make the script execute different commands according to some conditions, which can greatly make the function of the ...

catalogue PHP introduction 1.PHP source code compilation php Download   Software compilation   2. Configuration of PHP FPM file 3.nginx+php-fpm    4. Add memcache module in php Software download Build nginx cache and add memcache function module   5. Configure the php loading module openresty Download module &n ...

catalogue 1. Installation and deployment of MySQL database 2. Web database mysql 3.MySQL asynchronous replication   1.mysql master-slave replication Configure slave database Master slave replication process   2.GTID copy 3.mysql delayed synchronization 4. mysql parallel replication 4. Semi synchronous replication of MySQL da ...

1, Kubernetes (k8s) k8s full name Kubernetes With the rapid development of Docker as an advanced container engine, container technology has been applied in Google For many years, Borg system has run and managed thousands of container applications. The Kubernetes project is derived from Borg, and it can be said to be the essence of Borg's d ...