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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
Operations

Review Greg on Google

Greg Nowak Google Reviews

 

  • Cloudflare's new enforce DNS-only switch makes origin readiness a paid incident drill
  • Drupal's Automatic Updates Cleanup Got More Urgent After the Old API Shutdown
  • Apache 2.4.67 Put Old Reverse Proxies Back on the Risk List
  • Cloudflare Tunnel observability is better in 2026, which makes undocumented tunnel sprawl harder to ignore
  • Cloudflare Cache Response Rules Made Origin Header Debt a Paid Cleanup Job
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