Programming VIP

HA - Keepalived Principle analysis ** 💯 Introduction: * * kepplived high availability technology prevents the inevitable impact of a single point of failure of the service and enhances the high availability and security of the service. For example, the failure of middleware rabbitmq, mysql, mycat, Haproxy and other servers will affect the ...

Intranet penetration using FRP (dynamic domain name resolution) This article uses a minimalist configuration. If you have special requirements, please refer to https://github.com/fatedier/frp literature Environment preparation: Internet server (ubuntu) + local machine (ubuntu subsystem) The local server windows can be configured ...

Docker's Learning Notes 1. Overview of Docker Virtual Machine Data Model: VM Data Disadvantages: High resource usageToo many redundant stepsStart very slowly Containerized technology model: Compare Docker with virtual machine technology: Traditional virtual machines virtualize a piece of hardware, run a complete operating system, ...

In this article, we will step by step introduce how to use ISO to build Redhat Enterprise Linux 7/CentOS 7 VM in VMware vSphere environment. Packer It is very useful for building basic images in the cloud and locally. Packer is an open source tool developed by HashiCorp development. HashiCorp has well-known tools such as Vagrant, Consul and Ter ...

Server environment: CentOS7; Installation of Docker (CE) I. Preparations 1.1 Common Commands commandexplainuname -rView the current system kernel versiondocker -vView Docker Versionsystemctl start dockerStart Docker Servicesystemctl stop dockerStop Docker Servicesystemctl restart dockerRestart Docker Service`` 1.2 Uninstall Docker ( ...

Basic concepts of kubernetes Pod: k8s minimum deployment unit, a collection of containersDeployment: the most common controller for higher-level deployment and management of podsService: provides load balancing for a group of pods and provides unified access to the outside worldLabel: label, attached to a resource, used to associate objects, q ...

1, ELK overview 1. ELK introduction ELK platform is a complete set of centralized log processing solution, which combines ElasticSearch, Logstash and Kiabana to meet more powerful user requirements for log query, sorting and statistics. 2. ELK composition (1)ElasticSearch • it is a distributed storage retrieval engine based on Luc ...

1. kvm installation conditions 1.inter cpu ----> vmx 2.amd cpu -------> svm 2. kvm virtualization installation 1,dnf group list Lists the software groups in the system 2,dnf group install "Virtualization Client" "Virtualization Hypervisor" "VirtualizationTools" -y install Virtualization Client Virtualized client Virtualization Tools V ...

SSH Common remote connection software Putty: putty is an open source software with only more than 500 k, small and lightweight, but single function SecureCRT: SecureCRT is a terminal emulator that supports SSH(SSH1 and SSH2). In short, it is the software that logs in to the UNIX or Linux server host under Windows. The disadvantage is that t ...

k8s environmental preparation Prepare a linux computer Install kvm and initialize k8s cluster nodes sudo apt-get install virt-manager Install os Configure kvm network segment sudo vi /etc/libvirt/qemu/networks/default.xml # After configuration, restart the network sudo systemctl restart network-manager Get through ssh tunnel ...