Backup, Snapshotting & Disaster Recovery Stop trusting your database backups until you’ve verified the state of the WAL Technical Briefing | 8/25/2026 You spend all weekend automating your database backups,...
User & Group Management Stop fighting with stale SSH sessions when you change a user shell 🧩 The Challenge Ever updated a user’s login shell in /etc/passwd only to have...
Backup & Recovery (Rsync/Tar/Dd) Stop letting your backups get corrupted by bit rot while you sleep 🧩 The Challenge You finally moved that massive archive to long-term storage, but six...
Process & Resource Monitoring (Top/Htop/Ps/Systemd) Stop watching your system crawl because of I/O wait 🧩 The Challenge You know that feeling when the server load is through the roof but...
Package Management (Apt/Dnf/Pacman Internals) Stop apt from constantly re-downloading indices when you’re just hunting for a package name 🧩 The Challenge Trying to search for a package name when you’re...
Container & Kubernetes Internals Stop your containers from stalling because of cgroup memory pressure Technical Briefing | 8/24/2026 You probably think your memory limits are hard boundaries. They aren’t. I’ve...
Networking & Firewall (Ss/Netstat/Iptables/Nftables/Curl) Stop wasting time tracing connections through NAT hell 🧩 The Challenge Dealing with a service that refuses to talk to an internal endpoint because of a...
User & Group Management Stop users from sneaking in new groups you didn’t approve 🧩 The Challenge Dealing with developers who add themselves to the docker or sudo group behind...
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Stop relying on df to tell you the truth about deleted files 🧩 The Challenge Ever deleted a massive log file to clear up space,...
Cron & Task Scheduling (Cron/Systemd Timers/At) Stop your cron jobs from running if the last one is still stuck 🧩 The Challenge Everyone has had that one backup script that...