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What’s Inside – Cheryl Watson’s Tuning Letter

What’s Inside – Cheryl Watson’s Tuning Letter

The latest Tuning Letter, 2025 No.3, is out now! Subscribers to Cheryl Watson’s Tuning Letter can find the latest issue, 2025 No.3, on our Tuning Letter website. If you are not a current Tuning Letter subscriber, check the website for information about subscription...

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Hide your privates

Hide your privates

My mac had turned into a bit of a mess. I had ssh private keys (that use Passphrases of course!) in a variety of places and I wasn’t very happy about it. I have several different servers that I connect to. There are a few GitHub systems, a Linux system, and of course...

Recover Quickly With Surgical Precision

Recover Quickly With Surgical Precision

Resiliency is an integral part of the IBM Z platform. The IBM Z Cyber Vault solution is a concept for addressing data corruption whether through malicious intent, human error or failure of hardware or software. It provides an air gapped backup of the operating...

How to solve the Data Privacy issue for test data

How to solve the Data Privacy issue for test data

You may be aware of data privacy regulations such as Europe’s GDPR (General Data Protection Regulation) or California’s CCPA (California Consumer Privacy Act) that, among other things, ban you from using production data with personally identifiable information, such...

CICS Security – ADCD and Dallas Z ISV RDP

CICS Security – ADCD and Dallas Z ISV RDP

In RACF security terminology, CICS is a resource manager. Resource manager security can be enabled or disabled. Dallas Z ISV RDP provided CICS security is disabled. Why? CICS manages many resources where enabling security requires decisions about which specific CICS...

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❓What 2025 Taught Us About Mainframes: A Trivia Quiz

❓What 2025 Taught Us About Mainframes: A Trivia Quiz

As the year closes, and the year-end reflections roll in, we’re taking a closer look at key findings from the latest BMC, Kyndryl, and Planet Mainframe Arcati surveys. The results point to a platform that is evolving in response to cost pressures, skills gaps,...

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Mainframe Miscellaneous Trivia!

Mainframe Miscellaneous Trivia!

As the year draws to a close (whether your days are growing shorter and darker or longer and brighter), December tends to invite a little reflection. Over the past year, Planet Mainframe Trivia has dished out a veritable smorgasbord of topics, from the early days of...

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More Mainframe Lingo Trivia

More Mainframe Lingo Trivia

Mainframe environments come with their own vocabulary, much of it precise, legacy-rich, and completely opaque to anyone who hasn’t spent time in the ecosystem. And there really is no end to the alphabet soup. Even seasoned professionals pick up new terms over the...

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