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The latest News and Information on DevOps, CI/CD, Automation and related technologies.

One SSL certificate on multiple servers

Every certificate renewal automation tool has to answer one architecture question before it does anything else: where does the private key get generated? A reader who used to be “the certificate guy” at his organization emailed me this week to ask about exactly that: It’s the right instinct. It’s also how most automation tools work. Certbot generates the key on the server, builds a certificate signing request, and the private key never leaves the machine.

GPT-4 API cost 2026: pricing breakdown and how to estimate it

GPT-4 API pricing spans $0.10 to $30.00 per million input tokens across the model family. GPT-4.1 is the current recommended production model at $2.00 input / $8.00 output per million tokens. Legacy GPT-4 still runs at $30.00/$60.00 per million tokens -- 15x more expensive for no meaningful quality gain. For finance and engineering leaders accountable for AI spend, choosing the right GPT-4 variant is the single biggest cost lever on your bill.

Shipped: Give your Explorer filters & groupings room to scale

The controls at the top of Explorer are great for a simple question. But as your query grows with more group-bys or a stack of filters, those controls start eating into the vertical space you actually want for your data. Now you have the option to move filters and groupings into a dedicated left side panel, so a complex query has room to scale cleanly. Set it once and CloudZero keeps it that way.

Beyond safety and security: Why automotive open source demands dependability

In the traditional automotive world, teams often work in silos: the cybersecurity experts lock down the ports, the quality assurance teams hunt for bugs, and the functional safety engineers track the ISO 26262 compliance. At Canonical, we believe this fragmented workflow causes friction rather than collaboration. You cannot have a safe vehicle that isn’t secure, and you cannot have a secure vehicle running on poor quality code. This friction results in a slow and rigid development process.

Building an open source chain of trust: new research uncovers key blockers and ways forward

Canonical is pleased to share its latest research report, “The open source chain of trust.” Based on a survey of 500 DevOps professionals, the report highlights how organizations approach their open source software supply chains. While many companies are moving toward verifiable provenance and automated security workflows, internal misalignment and disjointed approaches remain serious challenges for most teams. Read the report.

Modern IT Infrastructure for Business Continuity, Security and Operational Efficiency

Modern organizations rely on IT infrastructure for almost every part of daily operations. Communication, customer service, accounting, data storage, remote work, application hosting and internal collaboration all depend on stable digital systems. When infrastructure is reliable, employees can work efficiently and customers experience fewer disruptions. When it is outdated or poorly managed, even small technical issues can quickly affect the entire business.

Managing IPv4 Address Scarcity: Strategic Allocation for Enterprise Networks

The global IPv4 address space is finite. With the Internet Assigned Numbers Authority (IANA) exhausting its available addresses in 2011 and regional registries following suit shortly after, enterprise IT teams face an unprecedented challenge: how to manage networks and scale infrastructure when new IPv4 addresses simply cannot be created.