Filter your logs by kernel boot ID to find the truth
Logging & Journald Filter your logs by kernel boot ID to find the truth 🧩 The Challenge Trying to hunt down why a server randomly crashed last week is a...
Author: Saket Jain
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Your cloud snapshots are not a disaster recovery plan
Backup, Snapshotting & Disaster Recovery Your cloud snapshots are not a disaster recovery plan Technical Briefing | 7/15/2026 You probably have an automated policy that takes snapshots of your volumes...
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Stop rsync from choking on millions of tiny files
Backup & Recovery (Rsync/Tar/Dd) Stop rsync from choking on millions of tiny files 🧩 The Challenge Trying to rsync a directory with a few million tiny cache files is a...
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Find out why your files are still holding space open
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Find out why your files are still holding space open 🧩 The Challenge You’ve deleted a massive log file to clear disk space, but the...
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Stop apt from holding onto those dusty old package caches
Package Management (Apt/Dnf/Pacman Internals) Stop apt from holding onto those dusty old package caches 🧩 The Challenge Dealing with a production box that keeps screaming about a full root partition...
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Catching cron job output before it vanishes into the ether
Cron & Task Scheduling (Cron/Systemd Timers/At) Catching cron job output before it vanishes into the ether 🧩 The Challenge Setting up a background job in crontab is easy until something...
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Stop getting burned by kernel modules that refuse to unload
Kernel News & Module Management Stop getting burned by kernel modules that refuse to unload Technical Briefing | 7/14/2026 We have all been there. You update a driver or swap...
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Stop getting locked out when your ssh session times out
SSH & Remote Administration Stop getting locked out when your ssh session times out 🧩 The Challenge Dealing with those annoying connection drops just because you stepped away to grab...
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Stop guessing which socket is hogging your ephemeral ports
Networking & Firewall (Ss/Netstat/Iptables/Nftables/Curl) Stop guessing which socket is hogging your ephemeral ports 🧩 The Challenge Dealing with a service that suddenly refuses to open new connections because you’ve run...
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When your AppArmor profiles are just suggestions
Security Hardening (SELinux/AppArmor/Auditd) When your AppArmor profiles are just suggestions Technical Briefing | 7/14/2026 Everyone loves AppArmor because it feels simpler than SELinux, but that simplicity often masks a dangerous...