Programmer Group

Described in the previous article "9.5 audit and tracking" In this chapter, we introduce the wonderful contents related to "9.6 data security technology" in Chapter 9 security management source code analysis. openGauss uses a variety of encryption and decryption technologies to improve the security of data in all links. 9 ...

Linux Installation and configuration of nginx 1, What is nginx 2, nginx installation 2.1 download from official website 2.2 download using wget command 2.3 unzip the installation package 2.4 configuration of nginx 2.4.1 use default configuration (recommended) 2.4.2 custom configuration (not recomme ...

Using nginx as front-end server introduce Nginx is a lightweight and high-performance Web server / reverse proxy server and email (IMAP/POP3) proxy server, characterized by less memory and strong concurrency install Because the dependency libraries of g + +, gcc, OpenSSL devel, PCRE devel and zli ...

As mentioned in the last article Variables and operation principle in Nginx , here is a module that mainly provides variables and modifies the values of variables, that is, the anti-theft chain module we want to talk about: the referer module. Simple and effective means of anti-theft chain scene If you ...

Preface With the rise of the media and audio-video industry, as well as the product demand for cross-platform mobile business, there has been an increase in the workload of developers and the difficulty of the work. For example, audio-video playback needs to support 95% of audio-video formats on the m ...

Every system needs an entrance for users to enter, which is generally used to connect the public network and the internal network. It is the total entrance of system traffic and the front guard of the system. This paper mainly introduces the design from user initiated request to load balancing layer. ...

Recently, more than 10 secondary domain names of individuals need to issue certificates. Let's Encrypt provides free SSL certificates with a term of three months. When they expire, they need renew. The official also provides certbot, a tool for automatic renew. Here, we record the general certificate that uses Let's Encrypt to generate t ...

preparation in advance Execute yum update openssh to upgrade first. The official upgrade is okay anyway.If you have previously manually compiled an upgrade of openssh, test yourself for changes to the default profile path.) (Unified openssh version 7.4p1 is prepared here before Unified Compile Installation is upgraded to openssh 8.2p1) [root@n ...

nginx forward proxy http/https and proxy mail service Demand background: In the company's Intranet environment, you cannot directly connect to the external network. The intranet service is required to access the Internet through the forward proxy. Installation environment preparation: Nginx itself does not support https protocol request forwa ...

PHP encryption extension library Mcrypt extension library Summary: php upgrade from 7.0 to 7.1 discards an extension, that is, the mcrypt extension. Although the extension can be used normally on the installation, a warning will be given to tell us that the mcrypt related methods have been discarded and have been removed by 7.2. Therefore, it i ...