Stop trusting your CPU usage metrics when they sit at 100 percent
Performance Monitoring & Tuning Stop trusting your CPU usage metrics when they sit at 100 percent Technical Briefing | 7/18/2026 You check your dashboard and see a CPU pegged at...
Tag: centos
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Don’t let your bootc images drift while your cloud-init scripts watch
Cloud-Native Linux (Cloud-Init, Immutable OS, Bootc) Don’t let your bootc images drift while your cloud-init scripts watch Technical Briefing | 7/18/2026 You built your golden image with bootc, pushed it...
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Stop your Ansible runs from leaking secrets into the local process list
DevOps Tooling On Linux (CI/CD Runners, Ansible) Stop your Ansible runs from leaking secrets into the local process list Technical Briefing | 7/17/2026 You probably think your secrets are safe...
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Stop letting Btrfs reclaim your free space in the background
Filesystem & Storage (ZFS/Btrfs/LVM) Stop letting Btrfs reclaim your free space in the background Technical Briefing | 7/17/2026 I watched a production box crawl to a halt last week during...
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Stop systemd from mangling your service environment variables
Systemd & Service Management Stop systemd from mangling your service environment variables Technical Briefing | 7/17/2026 We have all been there. You set an environment variable in your shell profile,...
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Stop LVM snapshots from turning your disk space into a trap
Filesystem & Storage (ZFS/Btrfs/LVM) Stop LVM snapshots from turning your disk space into a trap Technical Briefing | 7/17/2026 You probably created an LVM snapshot to back up a database...
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Stop fighting cloud-init logs when your bootc image fails to initialize
Cloud-Native Linux (Cloud-Init, Immutable OS, Bootc) Stop fighting cloud-init logs when your bootc image fails to initialize Technical Briefing | 7/16/2026 You built your perfect bootc image, baked in all...
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Stop your subshells from swallowing your exit codes
Shell Scripting & Automation Stop your subshells from swallowing your exit codes Technical Briefing | 7/16/2026 We have all been there. You write a nice, clean pipeline, piping the output...
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Stop APT from silently ignoring your architecture mismatches
Package Management & Distro Internals (Apt/Dnf/Pacman) Stop APT from silently ignoring your architecture mismatches Technical Briefing | 7/16/2026 You spend all morning setting up a multi-arch environment, and you’re certain...
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Don’t let ZFS arc_max eat your system’s memory alive
Filesystem & Storage (ZFS/Btrfs/LVM) Don’t let ZFS arc_max eat your system’s memory alive Technical Briefing | 7/16/2026 You set up a nice ZFS pool, everything runs great, and then you...