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What are clouds made of? Linux servers, mostly.

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Começando o curso de Cibersegurança

Começando o curso de Cibersegurança

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2 min read
Feedback for the LVM post on my blog

Feedback for the LVM post on my blog

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1 min read
El síndrome del aire acondicionado Split que infectó a la informática ❄️💻

El síndrome del aire acondicionado Split que infectó a la informática ❄️💻

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3 min read
How I built a kernel-enforced sandbox for LLM agent tool calls

How I built a kernel-enforced sandbox for LLM agent tool calls

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3 min read
RHEL: /data Disappeared After Reboot? Troubleshoot LVM and Multipath Before Touching pvcreate

RHEL: /data Disappeared After Reboot? Troubleshoot LVM and Multipath Before Touching pvcreate

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3 min read
Everything reported success: five silent failures self-hosting a social scheduler

Everything reported success: five silent failures self-hosting a social scheduler

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4 min read
KVM SR-IOV: intel_iommu=on is not SR-IOV until you create VFs

KVM SR-IOV: intel_iommu=on is not SR-IOV until you create VFs

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2 min read
xenarchos: a confirmed, sandboxed, auditable skill runner built on two open-source dependencies

xenarchos: a confirmed, sandboxed, auditable skill runner built on two open-source dependencies

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3 min read
Learning Network Reconnaissance with Nmap

Learning Network Reconnaissance with Nmap

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2 min read
Stop Opening Files Manually: 10 Faster Ways to Work in Linux

Stop Opening Files Manually: 10 Faster Ways to Work in Linux

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11 min read
Your test's OOM kill and a real one look identical — stop telling them apart by size

Your test's OOM kill and a real one look identical — stop telling them apart by size

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5 min read
Linux Beyond the Classroom: What IT Support Is Teaching Me

Linux Beyond the Classroom: What IT Support Is Teaching Me

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2 min read
isolcpus= takes CPUs off the scheduler. Hardware IRQs still land there.

isolcpus= takes CPUs off the scheduler. Hardware IRQs still land there.

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2 min read
Backing up a homelab with restic

Backing up a homelab with restic

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15 min read
From Debian to EndeavourOS

From Debian to EndeavourOS

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2 min read
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