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Phil Dalrymple

Phil Dalrymple

Phil Dalrymple is Co-Founder, CTO, and Chairman of Rhodium Systems. He co-founded MDT Software in the late 1980s and was the primary developer of MDT AutoSave, a widely used change management and version control system for industrial automation environments. Phil brings more than 40 years of IT and software development experience to Rhodium. He has been a student of DNS management for decades — developing automated tools to compensate for the absence of commercial DNS products long before ResorsIT existed.

Posted by Phil Dalrymple

More Than Faster: What AI Actually Changes in Software Development Article

More Than Faster: What AI Actually Changes in Software Development

Phil Dalrymple July 01, 2026

AI in software development is usually framed as a speed story. The speed is real — we have measured it — but speed is not the most interesting part of what changed when we started building ResorsIT with AI assistance.

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The Tools Every Business Runs On Article

The Tools Every Business Runs On

Phil Dalrymple June 22, 2026

Every organization runs on tools, and more of those tools are digital every year. No single vendor sells the whole toolbox – and building it all yourself is still impractical, even with AI. This article sets up that reality and narrows in on the kind of tool that dominates the modern stack: the web application.

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Host Files: The Last Line of Defense When DNS Fails Article

Host Files: The Last Line of Defense When DNS Fails

Phil Dalrymple June 12, 2026

DNS is more reliable than ever — and it still fails. When it does, a properly maintained host file is often the difference between continued operations and a complete standstill. The 2025 AWS outage proved it.

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Agent vs. Agentless: Why the Easy Choice Isn’t Always the Right One Article

Agent vs. Agentless: Why the Easy Choice Isn’t Always the Right One

Phil Dalrymple June 02, 2026

Agentless IT management is genuinely simpler to start — until your managed devices are behind NAT, at a remote site, or on a client network. This is the architectural problem agents solve, and why the upfront deployment cost pays for itself.

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What Is ‘Change Management’? Three Very Different Answers Article

What Is ‘Change Management’? Three Very Different Answers

Phil Dalrymple April 14, 2026

If you have heard “change management” in a meeting and nodded along without being sure which kind was meant, you are not alone. The phrase means three completely different things to three different audiences. Here is how to tell them apart.

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SAML vs. OIDC: Choosing the Right SSO Protocol for Your Organization Article

SAML vs. OIDC: Choosing the Right SSO Protocol for Your Organization

Phil Dalrymple April 06, 2026

SAML and OIDC both provide single sign-on, but they were built for different eras and different problems. Understanding the differences helps you make the right choice for your organization.

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Four Kinds of Identity - Why You Need Different Security for Different Reasons Article

Four Kinds of Identity - Why You Need Different Security for Different Reasons

Phil Dalrymple October 23, 2025

Why proving your identity to a bank teller requires different security than proving it to a computer system, and why both differ from how computers prove identity to each other. Discover the four distinct reasons we verify identity and why each demands its own approach…

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The Password Revolution - Why “Lucy in the sky with Rubies” is Safer Than “Tr0ub4dor&3” Article

The Password Revolution - Why “Lucy in the sky with Rubies” is Safer Than “Tr0ub4dor&3”

Phil Dalrymple October 08, 2025

The famous XKCD comic #936 changed how we think about passwords, and now government agencies agree: long passphrases beat complex passwords. Learn why “correct horse battery staple” is more secure than “Tr0ub4dor&3”…

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DNS Split Horizon - Navigating Internal vs External DNS Architecture Article

DNS Split Horizon - Navigating Internal vs External DNS Architecture

Phil Dalrymple September 24, 2025

DNS split horizon (also known as split-brain or split-view DNS) is a critical architectural pattern that allows organizations to present different DNS responses based on whether queries originate from internal or external networks…

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Mastering IPv6 Address Management: A Guide for Modern Networks Article

Mastering IPv6 Address Management: A Guide for Modern Networks

Phil Dalrymple September 09, 2025

IPv6 adoption is no longer optional. Learn how to effectively manage IPv6 address space, implement allocation strategies, and avoid common pitfalls in enterprise deployments.

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Select a Product Below To Learn More

Select a Product Below To Learn More

Phil Dalrymple May 21, 2025

Explore the powerful features and seamless functionality of our software designed to elevate your productivity and streamline your workflow.

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