Posted inMonitoring
Advanced PromQL: Don’t Let “Average Numbers” Mislead You
Don't be fooled by averages. Learn how to use Histogram Quantiles and Subqueries in PromQL to measure P99 latency and optimize your monitoring system.
Posted inGit
Migrating SVN to Git with git-svn: Preserving Commit History and Branches for Legacy Projects
A guide to migrating SVN repositories to Git using git-svn, preserving the full commit history, branches, and tags. Covers the complete real-world process: installation, author mapping, SVN cloning, converting branches and tags, pushing to a remote Git repo, and handling common issues.
Posted inMonitoring
Installing Prometheus SNMP Exporter: Professional Tips for Monitoring Switches and Routers
Don't let network devices remain 'black boxes'. Here is a detailed guide on using Prometheus SNMP Exporter to monitor bandwidth, port errors, and Switch/Router status in real-time.
Posted inGit
Clean Up Your Git Log with .mailmap: How to Standardize Author Names and Emails
Don't let your Git history get cluttered by duplicate emails. Learn how to use .mailmap to standardize author names safely and professionally.
Posted inCentos
Updating CentOS Stream 9: When to Reboot? Using needs-restarting Effectively
Is your Linux server truly secure after an update? Learn how to use needs-restarting on CentOS Stream 9 to identify services that need a restart and avoid unnecessary downtime.
Posted inPython
Stop Hardcoding: Manage Python Configs Like a Pro with YAML, TOML, and INI
Learn professional Python configuration management using YAML, TOML and INI. Stop hardcoding parameters to prevent system errors and improve maintainability.
Posted inDocker
GitHub Container Registry (GHCR) Guide: A Cost-Effective Way to Store Docker Images
Stop letting Docker Hub limit your pull requests. Switch to GitHub Container Registry (GHCR) for free Docker image storage and lightning-fast CI/CD integration.
Posted inMonitoring
Docker Swarm Monitoring: ‘Diagnosing’ Replicas and Rolling Updates with Prometheus & cAdvisor
A guide on setting up Prometheus and cAdvisor for Docker Swarm monitoring. Track replicas, node health, and rolling update status to ensure smooth operations.
Posted inGit
Git Refspec: The Navigation ‘Map’ to Mastering Fetch and Push
Git Refspec is the hidden 'map' that gives you detailed control over branch synchronization. Learn to customize Refspec to fetch PRs faster and optimize bandwidth for large projects.
Posted inPython
Transforming ‘Soulless’ Logs into High-Value Charts: Matplotlib and Seaborn Mastery for Devs
Transform raw log data into professional charts using Matplotlib and Seaborn. Learn how IT engineers use visuals to resolve incidents and effectively persuade management.