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Local LLMs for an Infra-Monitoring Agent: The Ollama think Bug, and Why I Still Chose a Cloud Model

OpenClaw went from a weekend project to one of the most-starred repos on GitHub in under five months, and now everyone's using it to run their inbox, …

aiollamaselfhostedsysadmin
Dev.to Jul 21, 2026, 00:35 UTC
EN

Monitoring Hardened Domain Controllers Without Admin Rights: The Five Permission Layers Nobody Documents

Everything works when the service account is a Domain Admin. Nothing works when you remove it. Here is the complete map of what sits in between — lear…

powershellactivedirectorysecuritysysadmin
Dev.to Jul 18, 2026, 19:35 UTC
EN

Hugging Face Out of Space Fix: The Storage Trap

By default, whenever you request a machine learning model, the underlying architecture saves gigabytes of tensor data into a hidden directory located …

linuxdevopssysadminai
Dev.to Jul 17, 2026, 09:21 UTC
EN

Learn Linux Through Operational Challenges

Many Linux beginners can remember a command before they know where it belongs. They can run touch , chmod , ss , or systemctl , but still hesitate whe…

labexlinuxsysadmin
Dev.to Jul 8, 2026, 04:15 UTC
EN

Used Cisco Catalyst switches: 2960X vs 3750X vs 3850

If you're building a lab or scaling a small office network, Cisco Catalyst switches dominate the second-hand enterprise market. They're robust, well-d…

networkinghomelabciscosysadmin
Dev.to Jul 3, 2026, 14:23 UTC
EN

I got tired of rebuilding my diagnostic USB on every machine, so I fixed it once

very IT tech I know has the same ritual. New machine lands on the bench, or you're at a client site, and before you can actually fix anything you spen…

windowssysadminproductivitytutorial
Dev.to Jul 2, 2026, 22:59 UTC
EN

Your Dedicated Server Benchmark Looks Great. Your Production Database Disagrees. Here's Why.

A clean fio or dd benchmark on a brand-new dedicated server is not the same thing as real-world I/O performance under concurrent, mixed-pattern produc…

dedicatedserverssysadmindevopsai
Dev.to Jun 30, 2026, 10:21 UTC
EN

The 5 Conditional Access Mistakes That Lock Users Out (And How to Fix Them)

One wrong Conditional Access policy and your entire organization is locked out. No exceptions. Not some users — everyone, including you. These are the…

intunemicrosoftazuresysadmin
Dev.to Jun 10, 2026, 10:35 UTC
EN

What Managing Multiple Devices Taught Me About Endpoint Security (And Why Performance Matters More Than Marketing)

A few years ago, I thought endpoint security was mostly about antivirus software. Install a security product, keep it updated, and you're done. After …

infosecdevopsitopssysadmin
Dev.to Jun 9, 2026, 13:29 UTC
EN

CentOS is Dead: CentOS 7 EOL June 2024, CentOS 8 EOL Dec 2021 — Your Migration Options

CentOS was the backbone of enterprise Linux infrastructure for nearly two decades. Free. Stable. Binary-compatible with RHEL. The obvious choice for t…

linuxsecuritysysadmindevops
Dev.to May 30, 2026, 05:23 UTC
EN

Veeam Backup & Replication End of Life: What EOL Backup Software Means for Your Compliance Posture

Veeam Backup & Replication is deeply embedded in enterprise infrastructure. It's also one of those products that teams install, configure, and the…

securitydevopssysadminbackup
Dev.to May 30, 2026, 05:22 UTC
EN

I built a Windows optimizer that refuses to run if Outlook is open

I wrote a PowerShell script that hardens and tunes Windows 10/11. Pretty standard stuff. Disables telemetry, kills bloatware, tweaks the registry for …

powershellwindowssecuritysysadmin
Dev.to May 13, 2026, 09:23 UTC

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