Server Operations

By Greg Nowak, 19 May, 2026

NGINX 1.30 changed upstream connection reuse: what to check before you upgrade

NGINX 1.30 reuses upstream HTTP connections by default. Audit legacy backends, inherited configuration and monitoring before you upgrade.

Sending Mail from a Linux Server with Postfix: A Reliable, Relay-First Setup

A practical Postfix setup for reliable server email: choose direct delivery or an SMTP relay, configure TLS, test the queue, and get DNS right.

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Copilot Has Repo-Level Metrics Now. What Should Teams Measure?

2026-07-29

GitHub’s repo-level Copilot metrics show where AI is active, but not whether it adds value. This scorecard connects usage with delivery, quality, and cost.

Not Every AI Job Needs an Instant Answer: Batch the Backlog

2026-07-28

Move delay-tolerant AI work into dependable batch queues to cut processing costs without compromising quality, data controls, or urgent workflows.

A stray Set-Cookie can waste your CDN: audit the cache at the edge

2026-07-27

Cloudflare Cache Response Rules can recover wasted CDN capacity, but first you need a route-level audit of public, personal and authenticated responses.

Shorter TLS certificates expose every renewal you never automated

2026-07-26

Shorter TLS lifetimes leave less room for manual handoffs and faulty deploy hooks. Build a renewal path that protects service availability.

One Timeout, Two Orders: Make AI Actions Safe to Retry

2026-07-25

A timed-out AI action may already have succeeded. Stable keys, durable ledgers, queues and stored results prevent a routine retry from duplicating real work.

Your AI Visibility Dashboard Needs a Methodology, Not More Charts

2026-07-24

A practical framework for measuring AI-search visibility with fixed prompts, repeated tests, separate metrics, retained evidence, and honest reporting.

AI Admin APIs Are Here—But Your Directory Is Still the Source of Truth

2026-07-23

New AI admin APIs can automate access and spend controls, but reliable governance still starts with authoritative directory data and clear ownership.

OpenAI Presence Arrived—But Is Your Workflow Ready for an Agent?

2026-07-22

Before an AI agent can take on real work, its workflow needs clear scope, permissions, handoffs, evaluation cases, and production monitoring.

Chatbot Transcripts Quietly Became a Retention and Redaction Problem

2026-07-21

Chatbot transcripts spread across providers, logs and support tools. Here is how to map each copy, redact sensitive data and test deletion properly.

Cloudflare Service Keys Stop in September: Find Every Caller

2026-07-20

Cloudflare Service Keys stop working on September 30, 2026. Here is how to find every caller, move to scoped API tokens and avoid a late outage.