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When you use SSHSecureShell to connect to centos, the connection will be closed if no operation is performed in a few minutes. You must log on again. it is annoying to repeat the same operation every time. Generally, you can solve this annoying

In the PHP development project, the customer requires that the product number be generated automatically when the product number is used, in the format of "QB00001". the solution of increasing the number is $ str = "QB ". str_pad ($ maxid [0] ["max (

This is a creation in Article, where the information may have evolved or changed. Recently in making a Golang connection pool. During the test, an interesting phenomenon was found that the connection was not returned to the connection pool, and the

This article describes the definition, inheritance, and usage of class objects in Python. This article describes the definition, inheritance, and usage of class objects in easy-to-understand languages, it is very practical and easy to understand. if

This is a creation in Article, where the information may have evolved or changed. Recently in making a Golang connection pool. During the test, an interesting phenomenon was found that the connection was not returned to the connection pool, and the

1. disk IO often becomes a bottleneck of the system during IO processing, especially for systems running databases. Data is read from the disk to the memory, stored in the CPU cache and registers, then processed, and finally written back to the disk.

This book in the past few years fragmented read two or three times, as a classic book, should repeat read and reread, since I began to write Bo, I am also ready to think of the classic good book reread carefully read it again, and put the notes into

Ftp and ssh are a bit like & amp; 20284;. ssh is mainly used to operate commands on remote servers, but ftp focuses on file transmission. it is relatively simple to install ftp on linux, I will share with you my experiences and experiences in

This article mainly introduces the summary of saveorupdate statements in Mysql native statements. it is very detailed. For more information, see Background During normal development, zookeeper often encounters this data update scenario: first,

This article mainly introduces two solutions to the MySQL error Forcingcloseofthread. For more information, see the recent increase in website traffic. some channel programs may have problems, this causes the Forcing close of thread 28790 user error

Because the Linux system originated and developed on the Internet, it is born with powerful network functions and rich network application software, especially TCP/I Because the Linux system originated and developed on the Internet, it is born with

: Linux File attributes: the default linux permission is in. we can see that the figure is divided into seven columns. what each column represents? I will explain in detail below. in, we can see the default permissions of the test1 file and the test2

I believe many new users who want to learn linux are wondering what linux learning courses are good. the following small series will collect and organize several important tutorials for you to learn, if you want to learn more, go to the wdlinux

This article describes how to explain the transaction isolation level and lock relationship of Innodb in MySQL. it is based on the experience of the technical team of Meituan. if you need it, refer Preface: We all know the several properties of

This article mainly introduces the implementation method of CodeIgniter read/write splitting, and analyzes in detail the configuration and function implementation skills of CodeIgniter read/write splitting based on the instance form, for more

I installed linuxdebian on a macbook and encountered some problems-General Linux technology-Linux technology and application information. The following is a detailed description. I want to delete osx from macbook air and install debian. I downloaded

System Introduction: wdOS is a CentOS-based simplified and optimized Linux server system. It integrates web application environments such as nginx, apache, php, and mysql and wdcp management systems, after installing the system, you can install all

JavaScript is a non-type language, but JavaScript also provides a flexible way to handle automatic type conversion. The basic rule is that if a value of a type is used in an environment that requires a value of another type, JavaScript automatically

Start the FTP server-Linux Enterprise Application-Linux server application under AIX. The following is a detailed description. Start the FTP server in AIX-Default FTP and wu-ftpd Platform: IBM AIX I. Default FTP After the ibm aix operating

MongoDBCRUD operations (focusing on update operations) (1)I. Introduction MongoDB is a high-performance, open-source, and non-pattern document-based database. It is currently the most popular NoSQL database product. Data is stored in a data set by