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1, KVM introduction 1. Introduction to KVM KVM The full name is kernel based virtual machine( Kernel-based Virtual Machine)，It's a Linux A kernel module that enables Linux Into a Hypervisor. KVM Originally by an Israeli company Qumranet(//Developed by kju'ma,net / /). KVM was officially incorporated into the Linux 2.6.20 core in February 20 ...

Front and back end separate deployment and operation and maintenance in Docker environment 1, Common commands of Docker virtual machine Update package first yum -y update Install Docker virtual machine yum install -y docker Run, restart and shut down Docker virtual machine service docker start service docker restart service docker st ...

1.SNAT 1.1 SNAT application environment LAN hosts share a single public IP address to access the Internet (private IP cannot be routed normally in the Internet) 1.2 SNAT principle Modify the source address of the packet 1.3 preconditions for SNAT conversion 1. Each host of LAN has correctly set IP address, subnet mask and default gate ...

1. docker volume mode In Docker, in order to realize data persistence (the so-called data persistence in Docker means that the data does not end with the end of the Container), you need to mount the data from the host to the Container. Currently, Docker provides three different ways to mount data from the host to the Container: (1) Volumes: pa ...

Directory structure of Linux Almost all computer operating systems use a directory structure to organize files. Specifically, it is to store subdirectories and files in a directory, and further store subdirectories and files in a subdirectory, and so on to form a tree file structure. Because its structure is very similar to the branch of a ...

text Software engineering needs to use jsp to develop and write websites. The teacher's PPT requires SVN, Tomcat and MyEclipse. Svn is a centralized version controller. I plan to replace it with Git. It is said that Tomcat can be replaced with Nginx, and I will try again later; There are many cracked versions of MyEclipse on the Internet, but ...

1. Encoding interface of UDP 1.1 programming flow of UDP 1.2 binding address information   int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen);   sockfd: the socket descriptor returned by the socked function, which binds the created socket to the network card and port   addr: address information structure & ...

Concept of deadlock What is deadlock? The program flow cannot continue to advance to a stuck state Deadlock generation condition 1. Mutually exclusive condition: when I accept the lock, others cannot lock it 2. Inalienable condition: I have locked it, and only I can solve it 3. Request and hold conditions: lock A is added and lock B is re ...

Linux brief introduction The Linux kernel was originally written by Finnish Linus Torvalds as a hobby when he was studying at the University of Helsinki. Linux is a UNIX like operating system that is free to use and spread. It is a multi-user, multi task, multi thread and multi CPU operating system based on POSIX (portable operating system ...

1. Introduction to Nginx 1.1 what is Nginx nginx Chinese documents: https://www.nginx.cn/doc/ Nginx is a high-performance Http and reverse proxy web server that provides IMAP/POP3/SMTP services Nginx features less memory, strong concurrency, simple installation and concise configuration files 1.2 reverse proxy Forward proxy: configu ...