Course Intermediate 11357
Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.
Course Advanced 17659
Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.
Course Advanced 11371
Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.
PHP connection failed: SQLSTATE connection refused
2023-08-23 18:49:26 0 2 629
2023-10-14 19:05:33 0 1 708
Mysql connection cannot be established because the target machine actively refuses the connection
2023-08-22 19:04:28 0 2 700
2017-10-14 12:41:35 0 2 1832
Trying to connect to redis client from nuxt 3 middleware but connection is undefined
2023-08-30 13:36:47 0 1 656
Course Introduction：pppoe connection is a wifi connection; PPPoE is an effective way to create a separate connection to a remote server for each user; compared with traditional access methods, pppoe has a higher cost performance, and it is used in many areas including community network construction, etc. It is widely used in a series of applications. The currently popular broadband access method ADSL uses the pppoe protocol.
2023-02-01 comment 0 14902
Course Introduction：MySQL is a mainstream relational database management system, and many applications use MySQL to store and manage data. The MySQL connection can be maintained until the application is closed or closed manually. However, in some cases, the MySQL connection needs to be closed in time to avoid resource waste and security risks. 1. Manually close the connection. Manually closing the MySQL connection is the most basic method. The connection can be closed manually in PHP using the following code: ```mysqli_close($conn);```where, $con
2023-05-08 comment 0 1471
Course Introduction：MySQL connection is disconnected, how to re-establish the connection? MySQL is a commonly used relational database management system used to store and manage data. However, sometimes the connection may be interrupted due to network failure, server issues, or some limitations of MySQL itself. When the connection is lost, it needs to be re-established to continue using the MySQL database. The process of re-establishing a MySQL connection is relatively simple. Here are some common methods: Check the network connection: First, make sure the network connection is normal. If you are connecting via LAN or
2023-07-02 comment 0 2528
Course Introduction：Using Sockets for network communication is a common practice in Node.js and is often used to build web servers and client applications. However, during network communication, sometimes it is necessary to close the Socket connection. This article will introduce how to use Node.js to manage the closing of the Socket connection. 1. Reasons for closing the Socket connection. Closing the Socket connection means that both parties of the connection terminate the connection through the established rules. This is a normal operation. The reasons why Socket closes the connection may be as follows:
2023-05-24 comment 0 1399
Course Introduction：Recently, in the process of using Oracle database, many users have reported that they cannot connect to the database and the connection always fails. This problem not only cost them a lot of time to solve the problem, but also seriously affected the progress of the work. This article will discuss why Oracle connection fails and how to solve the problem. 1. Why does the Oracle connection fail? 1. Wrong SID or service name When we connect to the Oracle database, we must enter the correct SID or service name. If the SID or service name entered is incorrect, connect
2023-05-11 comment 0 2438
