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  • The process of establishing and releasing links in TCP

    The process of establishing and releasing links in TCP

    TCP (Transmission Control Protocol) transmission control protocol TCP is a host-to-host layer transmission control protocol that provides reliable connection services. It uses a three-way handshake to confirm the establishment of a connection: the bitcode is the tcp flag bit, and there are 6 kinds of marks: s

    Shulou · 2022-06-02 22:53
  • Filter the first-level directory under the current directory (excluding directories under the directory)

    Filter the first-level directory under the current directory (excluding directories under the directory)

    Method one: [root@myhost] # ls-ltotal 56drwxr-xr-x. 2 root root 4096 Jul 2 09:48 a Murray RWMI. 1 root root 1

    Shulou · 2022-06-02 22:53
  • Jmeter agent records Web website

    Jmeter agent records Web website

    1. Add a [thread group] to the test plan in Jmeter, add [HTTP proxy server] to the workbench in Jmeter, set port [8888] in [HTTP proxy server] in Jmeter, and [test plan > thread group] in the target controller.

    Shulou · 2022-06-02 22:53
  • "the virtual machine is always in progress." Get all permissions to resolve

    "the virtual machine is always in progress." Get all permissions to resolve. 1. The cause of the problem the last time the computer was shut down, a scheduled shutdown task was done, and the system did not completely shut down the vmware service. Forcibly shut down the host (win10 system) system, and boot ready to boot the next day.

    Shulou · 2022-06-02 22:53
  • Principle and configuration of switch

    Principle and configuration of switch

    The principle and configuration of the switch in our previous study, we know that network transmission is divided into seven levels. The second layer is the data link layer, and the typical one in the data link layer is the switch! So today I'm going to introduce you to the switch at the data link layer. What is its principle? So what?

    Shulou · 2022-06-02 22:53
  • Basic usage and precautions of boost::asio::streambuf

    Basic usage and precautions of boost::asio::streambuf

    Streamsize sgetn (char_type * store,streamsize n) returns n characters under the buffer and stores them in store, and moves the buffer position back n byte code description: originally intended to constantly pass through sget

    Shulou · 2022-06-02 22:53
  • Kvm creates virtual machines in batches and automatically sets ip and server names

    Kvm creates virtual machines in batches and automatically sets ip and server names

    1. It shows that the least function of kvm compared with vmware is that you can customize the ip address when deploying virtual machines with templates. For a large number of scenarios that create vm, you need to log in one by one to change the ip, which is obviously very tiring. I encountered this scenario recently (large c

    Shulou · 2022-06-02 22:53
  • Detailed description of Docker Series 3:Docker Image

    Detailed description of Docker Series 3:Docker Image

    1. Introduction to the Docker image. 1. The composition of the image is layered. The bottom layer is bootfs. Above, the type of rootfsbootfs can be btrfs, aufs, lxc, and a kernel is required, but this kernel is only used to boot the container user.

    Shulou · 2022-06-02 22:52
  • Configuration of SHELL script PXE batch unattended installation machine

    Configuration of SHELL script PXE batch unattended installation machine

    PXE batch unattended installation script prepares two network cards: the first network card uses NET to install the service, and the second network card is used to provide dhcp service #! / bin/bash# deployment pxe batch installation service # configuration dual network card # defines the network card configuration file location k=/etc/s

    Shulou · 2022-06-02 22:52
  • How to solve the Security Challenge from Private Cloud

    How to solve the Security Challenge from Private Cloud

    Introduction: as a new model, private cloud has brought great changes to the information development of enterprises, and it is one of the development trends of the IT industry. It provides unified services for business units, including not only computing resources, storage resources, network resources, but also security resources, such as identity authentication, virus detection, *

    Shulou · 2022-06-02 22:51
  • WSFC cluster orchestration task schedule

    WSFC cluster orchestration task schedule

    Task planning is an important component of the operating system, through task planning, the computer can automatically help us trigger an operation under certain conditions to complete the task corresponding to real life, similar to today's intelligent rice cooker, you need to eat breakfast every morning, but you don't want to do it, so you use the intelligent rice cooker to do a regular operation.

    Shulou · 2022-06-02 22:51
  • Explanation of Linux interrupt programming principle of Quanzhi A33 lichee Development Board

    Explanation of Linux interrupt programming principle of Quanzhi A33 lichee Development Board

    Development platform * Xin Ling Si SinlinxA33 Development Board Taobao Shop: https://sinlinx.taobao.com/ embedded linux Development Board AC QQ:641395230 this section experimental goal to achieve key trigger interrupt terminal display

    Shulou · 2022-06-02 22:51
  • Kubernetes Food Guide

    Kubernetes Food Guide

    About Kubernetes Food Kubernetes is a container cluster management system open source by Google in June 2014, developed in the GE language, Kubernetes is also known as K8S. K8S is a container inside Google called Borg.

    Shulou · 2022-06-02 22:50
  • Vmware ESXI virtual machine boot can not find the disk, missing VMDK file

    Vmware ESXI virtual machine boot can not find the disk, missing VMDK file

    Virtual machine file note: boot error after a virtual machine shutdown: Unable to enumerate all disks cannot find disk for missing .vmdk descriptor file: the disk file listed in the data storage browser is the base of the virtual machine.

    Shulou · 2022-06-02 22:50
  • Apache-2.2.32 installation configuration

    Apache-2.2.32 installation configuration

    Apache-2.2.32 installation configuration 1, Apache service installation 1. Create a directory and download the Apache source package [root@apache ~] # mkdir/home/wangning/tools-p [root@ap

    Shulou · 2022-06-02 22:50
  • Manufacturing factory, ten questions answer, ten questions are all get manufacturers, just accept it!

    Manufacturing factory, ten questions answer, ten questions are all get manufacturers, just accept it!

    If you are a customer, how should you consider a manufacturing plant? Productivity? Product quality? Reputation?. It's much more than that. Thousands of considerations may suffocate you. The following ten direct pain point questions can help you choose a reliable manufacturer quickly and efficiently! Q1: judge the manufacturing plant

    Shulou · 2022-06-02 22:50
  • Solaris change SHELL

    Solaris change SHELL

    The default SHELL of Solaris is sh, which is located in / usr/bin/sh. You can change it to the familiar bash of common Linux, and directly enter bash (at, usr/bin/bash) sh without switching history commands up and down and using Tab to complete

    Shulou · 2022-06-02 22:50
  • Mailbox delegation permissions are already supported in Exchange hybrid deployment scenarios

    Mailbox delegation permissions are already supported in Exchange hybrid deployment scenarios

    Mailbox delegation permissions between local Exchange mailboxes and Office 365Exchange Online mailboxes are currently supported in Exchange hybrid deployment environments. Scenario description: for example, an Exchange needs to be assigned to a local mailbox

    Shulou · 2022-06-02 22:50
  • Zabbix monitors nginx through status module

    Zabbix monitors nginx through status module

    1. Edit the configuration file of nginx and add the following under server: location / status {stub_status on;access_log off;allow 127.0.0.1 deny a

    Shulou · 2022-06-02 22:49
  • What problems does Kubernetes solve in the use of Docker?

    What problems does Kubernetes solve in the use of Docker?

    Kubernetes is Google's open source container cluster management system. It is the open source version of Google's large-scale container management technology Borg for many years. (1) Container-based application deployment, maintenance and rolling upgrade. (2) Network to establish communication subnets between containers, such as tunnels, routing, etc.

    Shulou · 2022-06-02 22:49