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Python builds TCP communication TCP/IP protocol TCP/IP (Transmission Control Protocol/Internet Protocol) refers to a protocol cluster that can realize information transmission between multiple different networks. TCP/IP protocol refers not only to TCP and IP Two agreements, but one by FTP,SMTP,TCP,UDP The protocol cluster composed of, IP and ...

1. Prepare table information 2.MySQL advanced statement 2.1 alias Field alias, table alias Syntax: SELECT "table alias" "Field 1" [AS] "field alias" FROM "table name" [AS] "table alias"; Example: select A.age 'Age' from REGION A order by Age asc; 2.2 sub query: join table Insert ...

1. What is TD agent TD agent is a log collector, which provides rich plug-ins to adapt to different data sources, output destinations and so on In use, we can collect information from different sources to different places through simple configuration, and first send it to fluent D, and then fluent D forwards the information to different place ...

Permission management in Linux 1, Authority overview 1. Basic concepts of permissions In the management of multi-user computer system, permission refers to that a specific user has a specific right to use system resources. In Linux, you have read, write and execute permissions respectively: Permissions for filesPermissions for directoryRea ...

Purchase Ali server Hello! This is the welcome page displayed by the Markdown editor for the first time. If you want to learn how to use the Markdown editor, you can read this article carefully to understand the basic grammar of Markdown. 1. Install database Download and install the official Yum Repository for MySQL wget http://dev.mysq ...

#1. Significance of users and user groups# 1) The significance of users' existence and system resources are limited. How to reasonably allocate system resources? In solving this problem, we must have the cooperation of multiple resources 1. Identity account 2. Authorize author 3. Certification auth 3A mechanism, which constitutes the lowe ...

1. Basic requirements According to the description of real-time video and audio on demand in Chapter 9 of GB/T 28181-2016, its contents are as follows: SIP messages of real-time video and audio on demand shall be routed and forwarded through SIP servers in this domain or other domains, and the real-time video and audio stream of the target de ...

1, Overview 1. Concept 1) What is a shell: shell It is a command interpreter, which is at the outermost layer of the operating system. It is responsible for directly talking with the user, interpreting the user's input to the operating system, processing various operating system output results, and outputting them to the screen for feedb ...

1. LAMP overview LAMP architecture is one of the mature enterprise website application modes at present. It refers to a whole system and related software working together, which can provide dynamic web site services and its application development environment 50: L inux provides operating system support and an environment support A: Apach ...

Reference documents: Monitoring Kubernetes clusters using grayog and Prometheus Kubernetes documentation Prometheus2 #22 Grafana #40 Telegraf #41 Graylog #47 Elasticsearch #49 Mongodb #59 Apache2 Multi node openstack charms Deployment Guide 0.0.1-36-graylog actual - 1 Multi node openstack charms Deployment Guide 0.0.1-37-grayog actual-2 Mul ...