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Operations

By Greg Nowak, 10 May, 2026

Cloudflare Cache Response Rules Made Origin Header Debt a Paid Cleanup Job

Cloudflare's March and April 2026 cache changes turned origin-header cleanup from an app-team dependency into a staged edge-ops job. The practical opportunity now is to trace BYPASS and DYNAMIC responses, fix response headers at the edge, and improve cache behavior without waiting on origin releases.

Tags

  • Cloudflare
  • Caching
  • Performance
  • Operations
  • Headers
By Greg Nowak, 23 September, 2021

WordPress Cron: When to Replace WP-Cron with Server Cron

WP-Cron depends on site traffic and loopback requests, so important background jobs can drift or fail quietly. This guide explains when to keep it, when to replace it with server cron, and how to test it properly.

Tags

  • wordpress
  • WP-CLI
  • Linux
  • Operations
By Greg Nowak, 24 August, 2021

How to Flush DNS Cache on Ubuntu Linux

If a site cutover, mail change, or API move is still resolving the old address, this guide shows the current Ubuntu DNS flush command, the legacy alias, and how to check whether another local cache is actually the problem.

Tags

  • Ubuntu
  • Linux
  • DNS
  • Operations
By Greg Nowak, 7 September, 2020

Online Store Links Thailand: Practical Supplier Shortlist

A more useful version of this Thailand store-links note: two supplier leads worth checking, plus a practical checklist for safer, repeatable online buying through Shopee and local supplier pages.

Tags

  • Thailand sourcing
  • Shopee Thailand
  • Procurement
  • Operations
  • Supplier shortlist
By Greg Nowak, 15 September, 2019

Use a VPS as a Proxy Server with SSH Tunneling

A VPS can act as a lightweight SOCKS proxy through SSH. Here is the current, safer setup, where it fits operationally, and what to check before teams rely on it.

Tags

  • SSH tunneling
  • VPS
  • SOCKS5 proxy
  • Operations
Operations

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  • Online Store Links Thailand: Practical Supplier Shortlist
  • PHP CSV Parsers for Real-World Imports
  • DIY Irrigation Timer and Valve System in Thailand
  • Repeated prompts and long-running AI jobs are now a paid workflow-redesign problem
  • Drupal 8 Advanced Aggregation for Better Google PageSpeed Scores
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