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Deployment of keepalivedkeepalived is used in many highly available clusters. Generally, nginx, ipvs and haproxy are placed in the front end For example, when we use rabbitmq, we make such a cluster. If we make a cluster generally, we need such a highly available load balancer to distribute traffic. If we use haproxy, For example, if a rebbitm ...

Install virtual machine and docker package 1, Download and install VirtualBox Download VirtualBox on the official website I won't talk about the installation, just go to next. 2, Configure and install virtual machines First, run the VirtulBox program. After opening the program, the first thing i ...

1 Prerequisite Harbor is deployed as multiple Docker containers, so it can be deployed on any Linux distribution that supports Docker.The target host needs to have Python, Docker, and Docker Compose installed. 1.1 Hardware Resource Type capacity Explain CPU Minimum 2 CPU s Preferred 4 CPU s Memory Minimum 4GB Preferred 8GB Hard Disk M ...

Filebeat brief introduction Filebeat is a log file shipment tool that monitors the log directory or specified log files, tracks them for reading, and forwards the information to either elasticsearch or logstarsh when the client is installed on your server. Architecture System Beats is a lightweigh ...

Installation of bochs First, enter the command to install the dependencies of several bochssudo yum install gccsudo yum install gtk2 gtk2-develsudo yum install libXt libXt-develsudo yum install libXpm libXpm-devel Then execute su root to enter the password to enter the root administrator identity Next ...

Article directory I. Preface Experimental thought Experimental environment 2, Configure the second tier server as lnmp environment Test lnmp environment I. Preface Experimental thought In the previous article, two active and standby mode hosts are deployed to form the first layer of load bal ...

Building Web cluster with Haproxy 1: Common Web Cluster scheduler The Web Cluster scheduler is divided into software and hardware. The software usually uses open-source LVS, Haproxy and Nginx; the hardware generally uses more F5. 2: Application analysis of Haproxy Haproxy is a software that can ...

PrefaceWe are familiar with the bastion machine (springboard machine). In order to ensure the security of the server, we add a bastion machine. All ssh connections are completed through the bastion machine. The bastion machine also needs to have identity authentication, authorization, access control, audit and other functions.Jumpserver is the ...

1. ls command View the visible files, folders and their related permissions in the current directory Common parameters: - l list view -al view all, including hidden files and folders [root@qinshengfei bin]# ls --color in color [root@qinshengfei bin]# ls -l detail list catalog file [root@qinshengfei bin]# ls -a shows all files, inc ...

Article directory Preface 1: OpenStack overview 1.1: Overview 1.2: Why build OpenStack local yum source? 2: Local yum source building practice 2.1: Environment 2.2: topology 2.3: purpose of the experiment 2.4: experiment process 2.4.1: local source configuration 2.4.2: client configuration 2.4. ...