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I. Introduction to the experiment Three centos7 virtual machines are used to build a simple nginx reverse proxy load cluster, Address and function introduction of three virtual machines 192.168.2.76 nginx load balancer 192.168.2.82 web01 server 192.168.2.78 web 02 server 2. Install nginx software (the following three virtual machines should be ...

I. rabbitmq usage scenario, used for time notification and logging with microservices II. rabbitmq installation erlang 1. rabbitmq is written in erlang language. Before installing rabbitmq, you need to install erlang first. Here, you use the source code of erlang for installation. The download address of erlang installation p ...

System environment: Ubuntu 16.04 (Docker container) Architecture environment: Keepalived/HAproxy MASTER: 172.17.0.4 Keepalived/HAproxy BACKUP: 172.17.0.6 MySQL MASTER: 172.17.0.2 MySQL SLAVE: 172.17.0.3 HAproxy version: haproxy-2.0.8.tar.gz Keepalived version: keepalived-2.0.19.tar.gz   1. Install HAproxy (both MASTER/BACKUP) 1. Go to the offic ...

About Keepalived Keepalived is originally designed for LVS, which is specially used to monitor the status of each service node in the cluster system. It detects the status of each service node according to the third, fourth and fifth layer switching mechanisms of the TCP/IP reference model. If a server node is abnormal, or the ...

Introduction to OpenSSL OpenSSL is a suite of cryptographic tools that implement Secure Sockets Layer (SSL v2 / v3) and Transport Layer Security (TLS v1) network protocols and their associated encryption standards. The OpenSSL command line tool is used to use various encryption functions of the OpenSSL encryption library from shell programs. ...

1. Preface Recently, we are optimizing the visiting speed of the website and opening http2 protocol for the website. What are the advantages of this protocol? As follows: http2 is the next generation transport protocol, which will be widely used in the future, which is a trend. http2 has the feature of multiplexing, which means to access re ...

1. Preface Recently, we are optimizing the visiting speed of the website and opening http2 protocol for the website. What are the advantages of this protocol? As follows: http2 is the next generation transport protocol, which will be widely used in the future, which is a trend. http2 has the feature of multiplexing, which means to access resou ...

This article is the blog Mysql Series II: CentOS 7.4 install Mysql 5.7.28 source code There are many ways to install mysql. Take Centos7 as an example, you can download the compiled binary code on the official website for installation, and you can download the rpm package on the official website for installation. In this paper, we introduce th ...

The record of base64 encoding and decoding after des CBC encryption and decryption using openssl Library under linux c Decoding and encoding process Des CBC decryption encryption code base64 decoding group code main function Decoding and encoding process In the process, the encrypted xml documen ...

Article directory 1 http module 1.1 basic usage 1.1.1 module attributes 1.1.1.1 properties of HTTP request 1.1.2 module method 1.1.2.1 method of HTTP module 1.1.2.2 method of server instance 1.1.2.3 HTTP response method 1.1.3 processing GET requests 1.1.4 processing POST requests 1.2 request 1. ...