1 Introduction Since my blog uses a special WordPress active-active architecture (the macmini in the home data center is the primary write and secondary read node, and the VPS in Chicago Racknerd is the primary read node), once the macmini node has content changes (all blogs…

1 Introduction My previous blog architecture is a home data center (master node + hot standby node) + Tencent Cloud (disaster recovery node), which is a typical "single node read and write" solution. Since only the master node is responsible for processing database read and write requests on a daily basis, there is no need for real-time synchronization between databases: every time...

1 Introduction Regarding the health check and instant notification of cluster station applications, I have previously written a solution: self-built Uptime with Bark to monitor the service status and push abnormalities to my Apple devices (iPhone, iPad, macOS) (specifically...

1 Introduction This week's original plan was not to write this article, but when I was researching "The impact of APO on WordPress content cache", I accidentally discovered an abnormal situation: the response header of the blog access request appeared "Cf-Cache-Status...

1 Introduction In daily use, we often come across some excellent software managed by configuration files, such as HAProxy, Nginx, Apache and Keepalived. These software are famous for their high performance and flexibility, but their configuration files usually need to be directly…

Introduction In the daily use of Linux systems, especially for cloud host users with limited disk space, many people will encounter the situation where the disk space is gradually filled. There are many reasons for the shortage of disk space, such as a large number of log files generated by the system, Docker images occupying space, etc.

Preface When I opened my eyes early in the morning, I saw a bunch of emails from cloudflare: From the emails, I saw a total of 5 attack notification emails. In the order of the 5 emails, the contents are as follows: 1, 2, 3, 4, 5, This is the first time I was attacked. I was curious and surprised. Instead, I felt...

Preface In the previous article (construction), we successfully deployed the server and agent of wgcloud (see article: Home Data Center Series Deploy Your Own Operation and Maintenance Monitoring System through wgcloud (Part 1): Construction). After a period of actual operation, we finally...

1 Introduction For the real-time health monitoring and alarm of my group stations, I have always used the combination of uptime-kuma + bark server (for specific construction and configuration, please refer to: Docker series to build a message push service based on bark server...

Preface Actually, I didn’t want to write this article. I’ve never been too lazy to write about content that can be easily found online. But later I thought about it and decided to use this as an opportunity to record the process of building an application (mainly including database reuse) from beginning to end, so that I can directly use it in the future when I need it:…