Programming VIP

Author: Hu ChengqingMember of aikesheng DBA team, good at fault analysis and performance optimization, personal blog: https://www.jianshu.com/u/a95... , welcome to the discussion.Source: original contribution*It is produced by aikesheng open source community. The original content cannot be used without authorization. For reprint, please contact ...

catalogue 1. What is web API 2. Basic concepts in DOM 2.1 DOM tree (document object type) 3. Get elements and events 3.1. Get elements ? 3.2 events 4. Operation element 4.1. Get / modify the content in the element 4.2. Get / modify attributes in elements 4.3. Get / modify attributes in form elements 4.4. Get and modify style attribut ...

This paper mainly uses Wireshark to analyze the process of receiving e-mail by using POP3 protocol, and uses telnet command for simple operation. 1. POP3 introduction Post Office Protocol (English: Post Office Protocol, abbreviation: pop) is a member of TCP/IP protocol family and is defined by RFC 1939. This protocol is mainly used to suppo ...

What is the urllib library    urllib library is Python's built-in HTTP request library, which does not need additional download. It mainly includes the following four modules urllib.request Request module urllib.error Exception handling module urllib.parse url Analysis module urllib.robotparser robots.txt Analysis module urlli ...

In the website, the http request is stateless, that is, when user 1 connects to the server and logs in successfully, when refreshing the website and reconnecting, it still needs to log in again. Different users cannot be identified only through general information. The emergence of cookies is to solve this problem and realize the function of re ...

https reverse proxy configuration ● the fixed port number of HTTPS is 443, which is different from port 80 of HTTP ● the SSL standard requires the introduction of security certificates, so in nginx In conf, you need to specify the certificate and its corresponding key Others are basically the same as http reverse proxy, but the configuration i ...

1 configure SSL 1.1 introduction to SSL SSL configuration is a scenario we often see in practical applications SSL(Secure Sockets Layer) is a security protocol that provides security and data integrity for forgotten communication. SSL encrypts the network connection in the network transmission layer. SSL protocol is located between TCP/IP ...

Title Description: Title portal Problem solving ideas: First, we ignore the title of the topic (tree array template), and let's try a new algorithm - blocking. Block thought Blocking is a beautiful violence (by DFT). His core idea is to maintain an interval (length: n ...

Nginx reverse proxy service can receive requests on behalf and forward them to other servers set up. For example, the Nginx server is 100.101.102.103 and the A service is 100.101.102.104. Through the Nginx configuration file, the Nginx server agent can receive the request of A service and then forward it to the A service. Through SSL certificat ...

Keytool+Tomcat for two-way SSL authentication 1. Introduction to SSL Reference Blog: Https One-way Authentication and Two-way Authentication SSL(Secure Sockets Layer Secure Sockets Layer) is a protocol (specification) that ensures the security of client-side and server-side communications so that information transmitted during communication i ...