🔐 Say Goodbye to Complicated Passwords! A Complete Guide to Passwordless Login on Linux to Double Your Operations Efficiency Do you have to enter a password every time you SSH login? As a qualified operations engineer, how can you tolerate such repetitive work! Today, I will teach you a trick to completely break free from … Read more
Virtualization is the core support of enterprise IT, but failures often stem from overlooked details. This article breaks down 10 practical dimensions, teaching you to use “proactive operations” instead of “passive firefighting.” 1. Cluster Status: Stabilizing the “Framework” The cluster is the command center; anomalies in vCenter/SCVMM can lead to resource scheduling failures. Practical Check: … Read more
Welcome to like and bookmark Introduction: An Avoidable “Midnight Alarm” Last Wednesday at 2 AM, I was woken up by a phone call:“Web server CPU at 100%, users can’t access the website!” Logging in urgently, I found:One application server’s disk space had reached100%, log files were growing uncontrollably, causing MySQL to be unable to write, … Read more
“Is knowing 200 Linux commands considered mastery?” Many people fall into the “command trap” when learning Linux, but memorizing commands is like memorizing a car manual; it doesn’t mean you can drive on mountain roads or understand how to fix an engine. At best, it means you can “use a tool.” True mastery of Linux … Read more
1. Foreman Automation Deployment Steps Environment Preparation System Requirements Server: CentOS 8/RHEL 8 (recommended), 4 cores CPU, 8GB RAM, 100GB disk Network: Static IP, DNS resolution, firewall open ports (80/443/8443/69) bash sudo firewall-cmd –permanent –add-port={80/tcp,443/tcp,8443/tcp,69/udp} sudo firewall-cmd –reload Install Foreman bash # Add repository sudo dnf install -y https://yum.theforeman.org/releases/3.5/el8/x86_64/foreman-release.rpm # Install Foreman + Puppet (default … Read more
🚀 Automation Tool for Operations: Easily Manage Hundreds of Linux Servers with Ansible Say goodbye to manual operations! Manage 1000 servers with a single command, that’s the charm of Ansible. 🎯 Why Choose Ansible? Are you still struggling to manage dozens of servers? Are you still working late into the night deploying applications one by … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with a note【Public Account】for faster approval Before explaining the permission issues, I would like to briefly introduce the essence of commands and the role of the command line interpreter. Introduction 01 The Essence of Commands Entering a … Read more
Automated deployment is truly “awesome”! If you are responsible for operations and maintenance in a company and need to manually configure dozens of servers every day, the repetitive tasks can be exhausting. But what if you could master a method that allows you to write just a few lines of code to automatically configure and … Read more
Footed robots often face three major challenges in complex terrain operations: difficulty in terrain adaptation—unstable walking on rugged surfaces; weak autonomous navigation capability—dynamic environment positioning easily drifts; and short load endurance—task execution efficiency is limited. Especially in scenarios such as field detection and emergency firefighting, traditional robots often struggle to complete tasks due to complex … Read more
