keepalived vs. nginx vs. MySQL

Introduction to keepalived VRRP Cluster technology is a relatively new technology. Through cluster technology, relatively high gains in performance, reliability, and flexibility can be obtained at a lower cost. Its task scheduling is a cluster system. core technology. After the cluster is formed, multiple computers and combinations can be used to process massive requests (**Load […]

Practical combat of springboot sky delivery: 6. redis (Spring Data Redis)

Spring Data Redis Introduction URL: https://spring.io/projects/spring-data-redis Spring Data Redis provides a highly encapsulated class: RedisTemplate, which classifies and encapsulates related APIs and encapsulates the same type of operations into operation interfaces. The specific classification is as follows: ValueOperations: string data operations SetOperations: set type data operations ZSetOperations: zset type data operations HashOperations: hash type data […]

68 Intranet Security-Domain Horizontal PTH&PTK&PTT Hash Ticket Delivery

Directory Demonstration case: Domain Lateral Movement PTH Pass-Mimikatz Domain Lateral Movement PTK Pass-Mimikatz Domain Lateral Movement PTT Delivery-MS14068 &kekeo &local Domestic Ladon intranet killer test and acceptance – information collection, connection, etc. Resources involved: PTH (pass the hash) #Penetration testing using the value of lm or ntlm PTT (pass the ticket) #Penetration testing using ticket […]

nginx+keepalived realizes the high availability of nginx service

This tutorial briefly introduces how to use keepalived to achieve high availability of nginx services. keepalived is an open source high availability solution that enables load balancing and failover on Linux systems. It is mainly used to ensure that when the main server in the server cluster fails, it can quickly switch to the backup […]

Face recognition liveness detection (open mouth and shake head recognition)

Table of Contents 1: Introduction Two: Implementation idea analysis According to the analysis of implementation ideas, coding is implemented step by step: 1. Click the recognition button to call the camera 2. CameraRules class, detect camera permissions 3. Initialize the page, create the camera page, create mouth opening data and shaking head data 4. Turn […]

LVS+Keepalived achieves high availability and the service is always online

1. Background When the business volume reaches a certain amount, bottlenecks often occur in single-machine services. At this time, the most common way is to perform horizontal expansion through load balancing to achieve load balancing. When a service becomes abnormal, it can be automatically eliminated. However, the load balancing service itself may also fail, so […]

Unity’s live2dgalgame multi-language configurable plot framework

This code is used to read the table using System; using System.Collections; using System.Collections.Generic; using UnityEngine; using OfficeOpenXml; using System.IO; using UnityEngine.Networking; using UnityEngine.UI; using Random = UnityEngine.Random; public class Plots : MonoBehaviour { public static string ReadingExcel;//The table being read [Header(“Table Folder”)] public static string URL = Application.streamingAssetsPath; public static string PlotsEXCEL = “Plots”; […]

The virtual machine VMware Workstation Pro is installed and configured using the server system ubuntu-22.04.3-live-server-amd64.iso

Install ubuntu-23.04-beta-desktop-amd64 in the virtual machine and enable SSH (source change and backup) to configure Chinese and Chinese input methods, etc. ?1. Get Ubuntu Server Edition Get Ubuntu Server Edition 2. Configure the virtual machine SelectCustom(advanced): SelectWorkstation 17.x: Select “I will install the operating system later.“ Select “Linux“: Name the virtual machine and location: Processor […]

LVS+keepalived–high availability cluster

LVS + keepalived–high availability cluster keppalived is a high-availability service born for LVS. The lvs scheduler cannot achieve high availability, so keepalived is the software. What is achieved is the high availability of the scheduler. However:keepalived is not specifically designed to serve the lvs cluster. You can also make other proxy servers highly available. The […]

Zabbix monitoring keepalived split brain

Zabbix monitoring keepalived split brain 1. Introduction to split-brain In a high availability (HA) system, when the “heartbeat line” connecting two nodes is disconnected, the HA system, which was originally a whole and coordinated actions, split into two independent entities. Since they lost contact with each other, they both thought that the other party had […]