- Build a Right-Side TOC for Docs: Sticky, Scroll-Margin, Active Section Highlighting
- Ubuntu 24.04: DNS caches lie — flush the right cache (and stop flushing the wrong one) (case #86)
- Ubuntu 24.04: MySQL “too many connections” — fix it without making the DB slower
- MySQL vs MariaDB: binlog disk explosion—how to keep it under control
- WordPress cron not running: why scheduled posts fail and how to fix
- Ubuntu 24.04 SSD/NVMe performance falls over time: prove it’s TRIM/GC and fix it
- Proxmox ZFS checksum errors: disk or cable — how to prove which one
- ZFS Scrub: How Often to Run It and What It Proves
- MySQL vs MariaDB max_connections: stop OOM crashes on small servers
- ZFS Dedup Tables (DDT): What They Are and Why They Hurt
- Debian 13 kernel tainted: what it means and when you should care
- Office VPN for ERP/CRM apps: prevent freezes and timeouts the right way
- WordPress Plugin Broke Your Site: Disable It via FTP/SSH and Recover Fast
- Dovecot Mailbox Corruption: Recovery Steps That Minimize Damage
- Cmd+K Search Modal UI: Results Lists, Keyboard Hints, and Empty States (HTML/CSS-First)
- Ubuntu 24.04: DNS caches lie — flush the right cache (and stop flushing the wrong one) (case #26)
- DNS: Unbound caching resolver — set it up in 15 minutes (and avoid the common trap)
- Proxmox Security Checklist: 2FA, RBAC, Firewall, Updates, and Safe Remote Access
- MySQL vs MariaDB on a 16GB VPS: When Replication and Pooling Become Mandatory
- Ubuntu 24.04 Watchdog resets: detect silent hangs before they cost you uptime (case #18)
- MariaDB vs PostgreSQL Migration: Move Without Downtime and Without Surprises
- Proxmox CIFS “Permission denied”: fix credentials, SMB dialect, and mount options
- CSS Animations That Don’t Murder Performance: Transform/Opacity Rules + Pitfalls
- DNS Cache Poisoning Basics: Harden Your Resolver Without Overengineering
- dnsmasq Cache + DHCP: A Clean Config That Doesn’t Fight Your System
- Docker: Alpine vs Debian-slim — stop picking the wrong base image
- ZFS L2ARC sizing: When 200GB Helps More Than 2TB
- WireGuard “Handshake did not complete”: pinpoint NAT, ports, and time issues
- ZFS Quotas for Multi-Tenant: Preventing One User From Killing the Pool
- ZFS dRAID Sparing: How Distributed Spares Change Recovery
- MariaDB vs PostgreSQL on HDD: Who Suffers More Under Disk Pressure (and Why)
- Proxmox pveproxy.service failed: 7 common causes and the right fix order
- Ubuntu 24.04: Fix “Too many open files” on Nginx by raising limits the right way (systemd)
- ZFS for MySQL: Avoiding Latency Meltdowns Under Write Bursts
- Email migration: Move mail to a new server with minimal downtime (real steps)
- Debian 13 “Dependency failed” at boot: find the one service blocking startup (case #29)
- ZFS Special VDEVs on SAS SSDs: The Pro Move for Metadata
- Ubuntu 24.04 “Cert verify failed”: Fix CA bundles and intermediate chains properly
- PostgreSQL vs CockroachDB: HA without drama—or HA with new kinds of pain
- ZFS IO Scheduler Choices: mq-deadline vs none for HDD, SSD, and NVMe
- ZFS zfs list -o space: The View That Explains ‘Where Did It Go?’
- Docker Bind Mount Permissions on Windows: The Least Painful Setup
- MySQL vs PostgreSQL for Multi-Tenant SaaS: Tenant Isolation That Survives Growth
- Office VPN Zero Trust: Replace Flat Networks with Role-Based Access
- Email: Outbound reputation tanked — what to stop doing immediately (and fixes)
- Debian 13: “Text file busy” — why deploys fail and how to fix safely (case #57)
- MySQL vs PostgreSQL for High Concurrency: Who Hits the Wall First and Why
- Ubuntu 24.04 tmpfs/ramdisk gone wild: stop it eating RAM (without breaking apps)
- Debian 13 “Segfault” Crashes After Upgrade: Find the Exact Library Mismatch (Case #55)
- ZFS Feature Flag Portability: Avoiding “Cannot Import” Surprises