Programming VIP

centos system MysqlCommunityServer8.0.24 MysqlWorkbench8.0.22 First, delete mysql from centos system The reason for deletion is that it does not fit Version 8.0.24 of MysqlCommunity and MysqlWorkbench are installed Step 1 First check whether the system comes with Mysql [dalaojun@localhost download]$ whereis mysql mysql: /usr/bin/mysql /usr/l ...

Stress is a stress testing gadget under linux. I see some people use this tool to describe some scenarios of resource depletion, and others use it for chaos testing. Users should note that this tool does not simulate business problems, but system level problems. Therefore, when using it to simulate, it is very different from the real busin ...

POSIX semaphore POSIX semaphores and SystemV semaphores have the same function. They are used for synchronous operation to achieve the purpose of accessing shared resources without conflict. However, POSIX can be used for inter thread synchronization. 1. System call function of POSIX semaphore Header file: #include < semaphore h> ...

1, DNS overview In daily life, people are used to using domain names to access servers, but machines only recognize IP addresses. There is a many-to-one relationship between domain names and IP addresses. An IP address can correspond to multiple domain names and a domain name can correspond to only one IP address. The conversion between th ...

Virtual machine installation, Linux system and software installation Environmental Science: Software selection: server with GUI Network type: use network address translation (NAT) Power on automatic networking cd /etc/sysconfig/network-scripts/ vim Network profile //ONBOOT = "no" is changed to yes, and there is no need to conne ...

Linux deploy - (2) installation and configuration of pagoda panel The last article talked about how to install linux deploy and install linux distribution in it. The following describes how to install and configure the pagoda panel and build a basic server environment Pagoda panel is a free server management platform. You can install it on you ...

1. Virtual memory, physical memory, semiconductor memory and page feed file Virtual memory: address space, virtual storage area, and virtual memory accessed by applications. Physical memory: storage space, the actual storage area. Only the system kernel can access the physical memory. Physical memory includes semiconductor memory and pa ...

prerequisite Install redis, I'm from Redis official website Download the latest version of redis-5.0.5linux environment, centos 7.7 I use, VM environment # redis preparation $ cd /opt $ wget http://download.redis.io/releases/redis-5.0.5.tar.gz $ tar xzf redis-5.0.5.tar.gz $ cd redis-5.0.5 $ make $ make install A cluster in a production envi ...

The second part (Networking) describes the protocols used on UNIX system and the technology used to set up, expand and maintain network and Internet Oriented server. In addition, it also introduces the upper network software, including domain name system, e-mail, single sign on and Web hosting. Chapter 13 TCP/IP networking 1. Basic knowle ...

preface Weidongshan embedded Linux application development basic knowledge learning notes Video tutorial address: https://www.bilibili.com/video/BV1kk4y117Tu 1. Framebuffer application programming   in Linux system, LCD is controlled by Framebuffer driver. Frame means frame and buffer means buffer, which means that Framebuffer ...