Stop guessing why your cgroup limits aren’t kicking in
Container Basics On Linux (Namespaces/Cgroups) Stop guessing why your cgroup limits aren’t kicking in 🧩 The Challenge Dealing with a container that keeps eating all your RAM despite having a...
Author: Saket Jain
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Quit guessing why your disk space isn’t actually free
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Quit guessing why your disk space isn’t actually free 🧩 The Challenge You’ve deleted a massive log file to clear space, but df still insists...
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Stop Ansible from leaving your CI runner in a weird state
DevOps Tooling On Linux (CI/CD Runners, Ansible) Stop Ansible from leaving your CI runner in a weird state Technical Briefing | 7/14/2026 CI runners are ephemeral by design, yet we...
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Stop hardcoding those messy directory paths in scripts
Shell Scripting / Bash Tricks Stop hardcoding those messy directory paths in scripts 🧩 The Challenge You know that feeling when you move a project to a new server and...
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Running one-off tasks without the clutter of crontab
Cron & Task Scheduling (Cron/Systemd Timers/At) Running one-off tasks without the clutter of crontab 🧩 The Challenge Sometimes you need to run a maintenance script exactly once at 3 AM...
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Your SSH keys are living in the past
SSH, Remote Access & Zero Trust On Linux Your SSH keys are living in the past Technical Briefing | 7/14/2026 We all love the simplicity of authorized_keys. It worked perfectly...
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Find out who is spamming your system logs before the disk fills up
Logging & Journald Find out who is spamming your system logs before the disk fills up 🧩 The Challenge You get that 3 AM page about a disk space warning...
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Stop losing your place when you ssh between servers
Environment & Shell Customization (Aliases/Functions/.Bashrc) Stop losing your place when you ssh between servers 🧩 The Challenge You’re bouncing between production, staging, and dev boxes all day and suddenly realize...
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Tracing syscalls with eBPF when journald is just not telling you the truth
Observability & Logging (Journald, EBPF Tracing) Tracing syscalls with eBPF when journald is just not telling you the truth Technical Briefing | 7/14/2026 You check the logs. You see a...
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Stop relying on the limited standard mode bits for complex directory shares
Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor) Stop relying on the limited standard mode bits for complex directory shares 🧩 The Challenge You know that feeling when a dev group needs access to...