Every once in a while I get asked why I don’t have an out-of-office message for my email or voice mail. Truth is, I’ll often monitor my email even when I’m out, though I often practice good operations discipline by not responding. Just as intermittent problems with computer systems are hard to deal with, a […]

I’ve found that things that are free of charge are often not a good deal. TANSTAAFL, or “There ain’t no such thing as a free lunch.” You’re always paying in some way. Maybe the piece of hardware is marked up more to cover the development cost of the “free” software that comes with it. Perhaps […]

I was setting up VMware vRealize Automation’s Active Directory connections the other day and I needed the public SSL certificate for the AD DCs to authenticate correctly. You can use OpenSSL to get that information. I used a Linux shell but this should be do-able from a Mac or with OpenSSL installed on Windows, too. […]

I just got a new iPhone Xs Max. I had an iPhone 6s which I liked a lot, but it’s been a few years and with more travel I thought I’d enjoy having a better device with me. There are a few things that bit me in the duff. Some two-factor authentication (2FA) apps like […]

by George Whittaker Introduction Linux system administration encompasses managing the software and hardware of Linux systems, which can be complex, especially for those new to Linux or managing multiple systems. Fortunately, Webmin, a web-based interface, simplifies many of the routine tasks involved in maintaining a healthy Linux system. This article explores how Webmin can be […]

by Bryan Lunduke What is DevOps? How does it relate to other ideas and methodologies within software development? Linux Journal Deputy Editor and longtime software developer, Bryan Lunduke isn't entirely sure, so he asks some experts to help him better understand the DevOps phenomenon. The word DevOps confuses me. I'm not even sure confuses me […]

by Kyle Rankin Take a tour through the best infrastructure I ever built with stops in architecture, disaster recovery, configuration management, orchestration and security. Working at a startup has many pros and cons, but one of the main benefits over a traditional established company is that a startup often gives you an opportunity to build […]

by Andy Carlson How to provide robust monitoring to low-end systems. When running a critical system, it's necessary to know what resources the system is consuming, to be alerted when resource utilization reaches a specific level and to trend long-term performance. Zabbix and Nagios are two large-scale solutions that monitor, alert and trend system performance, […]

Microsoft Entra PowerShell is a module that lets administrators manage and automate Microsoft Entra ID resources—such as users, groups, applications, and policies—via PowerShell, built on and interoperable with the Microsoft Graph PowerShell SDK. ​Microsoft released version 1.1.0 of the Entra PowerShell module, introducing compatibility improvements and new filtering parameters for device and service principal management. […]

Microsoft announced that advanced Intune Suite capabilities will be included in Microsoft 365 E3 and E5 subscriptions at no additional cost, expanding endpoint management and security features to more organizations. The changes take effect in 2026 and aim to help IT teams manage devices at scale while strengthening Zero Trust security. Source

Installing a new .NET version does not automatically uninstall older versions, meaning outdated End of Life runtimes can remain on systems indefinitely. These unsupported versions pose serious security risks as they no longer receive patches for newly discovered vulnerabilities. Microsoft ceased support for .NET Framework 4.5.2, 4.6, and 4.6.1 on April 26, 2022, leaving systems […]

Microsoft announced Baseline Security Mode at Ignite 2025, a new security capability that provides an opt-in security baseline for Microsoft 365 tenants. The feature shifts critical protections from optional configurations to a secure-by-default model that administrators can choose to enable, helping organizations meet minimum security standards when they opt into the feature. Source