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Reference resources https://www.cnblogs.com/liaojiafa/p/6087276.html Four hosts are in a LAN. The ip of LVS_master is 192.168.1.196, LVS backup is 192.168.1.197, the ip of two web servers is 192.168.1.200192.168.1.201, and the virtual ip is 192.168.1.198. It can be seen from the keepalived configuration file. The experimenta ...

ipvsadm The ipvsadm command is the management tool of lvs Cluster in the application layer. We can use this ipvsadm to manage the configuration of lvs. In fact, it implements the cluster service management: add, delete, change, RS management of cluster service: add, delete, change and view the cluster status. Management cluster service: add, ch ...

course Using shell script one click deployment service under RHEL7(Centos7)Using shell script to deploy service one click under RHEL7(Centos7) (2)Using shell script to deploy service one click under RHEL7(Centos7) (3) Update content: one click deployment of PXE+kickstart unattended installation servic ...

Super detailed process of building Haproxy cluster and highly available Haproxy cluster! 1, What is Haproxy? Previous blogs have shown how LVS load balancers work. Today's haproxy is better than LVS. LVS does not support regular expression processing at work, and the implementation of LVS for some l ...

outline For the principle of cluster, please refer to Redis design and Implementation - working principle of cluster , I won't go into details here. I introduced how to use redis trib toolset to install cluster a long time ago How to build and use Redis cluster In the past two days, I read the official documents and found a new way of installa ...

Written in front First, let's talk about my machine configuration, the hot naked machine. There are three configurations as follows 10.20.1.103 4C 8G disk 50G node4 master centos7 10.20.1.104 4C 8G disk 50G node5 node centos7 10.20.1.105 4C 8G disk 50G node6 node centos7 My installation method is ba ...

1, nginx introduction 1.nginx service function: 2. Advantages of nginx service: 2, nginx service web deployment 1. Installation Preparation 2. Compile and install nginx 3. Start nginx preparation 3.1 configure environment variables 3.2 check syntax 3.2 boot 4. Turn off firewall, SE 5. Web access 6. Deploy a site 6.1 ...

1, Preparations 1.1 server preparation Operating system: centos 7.x 1.2. Install the text editing tool nano # yum -y install nano 2, Turn off SELinux 2.1. View SELinux status 2.1.1. First method: view SELinux status # /usr/sbin/sestatus SELinux status:                 enabled SELinuxfs mount:                /sys/fs/selinux SELinux root director ...

The database organizes, stores and manages data according to the data structure. It is a warehouse built on the computer storage device. Simply speaking, it can be regarded as an electronic file cabinet itself - the place where electronic files are stored. Users can add, intercept, update and delete data in files.1. Install and deploy http://w ...

Download CentOS version 6.4 system 1: Modify IP address (system -- > preferences -- > network connections) 2. Add user [root@localhost ~]# adduser hadoop [root@localhost ~]# passwd hadoop Changing password for user hadoop. New password: BAD PASSWORD: it is based on a dictionary word BAD PASSWORD: is too simple Retyp ...