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- ZFS Refreservation: Guaranteeing Space Without Breaking Apps
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- Proxmox ZFS “cannot import pool”: root causes, checks, and recovery options
- Docker: DNS inside containers is broken — systemd-resolved fixes that stick
- Email Greylisting: When It Helps and When It Just Delays Real Mail
- Docker “OCI runtime create failed”: decode it and fix the real cause
- MySQL vs OpenSearch for Self-Hosted Search: Worth It or Self-Harm on a VPS?
- ZFS Bookmarks: Saving Incrementals When Something Goes Wrong
- Ubuntu 24.04 “Temporary failure in name resolution”: stop guessing and fix DNS the right way
- Office VPN + RDP: Secure Remote Desktop Without Exposing RDP to the Internet
- Docker Port Published but Unreachable: The Real Checklist (Not Guesswork)
- Proxmox Backup Server vs Veeam for VMware: what’s better for fast restores and simple ops
- Ubuntu 24.04 Disk Hangs Under Load: Timeout Settings That Prevent Full Stalls (Case #30)
- MySQL vs Percona Server: safer defaults—less tuning, fewer outages
- ZFS Kernel Upgrade Survival: What to Check Before Reboot
- ZFS autotrim: Keeping SSD Pools Fast Over Time
- ZFS IOPS vs Throughput: Stop Reading the Wrong Metric
- Ubuntu 24.04 “grub rescue>”: Get Back to a Booting System with the Least Damage
- ZFS zfs release: How to Actually Remove “Undeletable” Snapshots
- Office VPN + Printers: Stable Cross-Site Printing Without Random Failures
- Docker Postgres Container Pitfalls: Data Loss Scenarios and How to Avoid Them
- WordPress “Briefly unavailable for scheduled maintenance”: why it sticks and how to fix it
- Docker Restart Policies: Stop Creating Infinite Crash Loops
- WireGuard DNS Not Working Through VPN: Correct DNS Setup on Linux and Windows
- WordPress “max_input_vars”: Why Menus and Forms Break, and How to Fix It
- DNS: MTU Issues Can Break DNS — How to Prove It and Fix It
- ZFS Incremental Send: Backups That Don’t Recopy Everything
- MySQL vs PostgreSQL backups in containers: how to avoid fake backups
- ZFS for Media Files: Big Records, Big Compression, Big Wins
- Ubuntu 24.04: Memory ballooning surprises — set sane limits and stop swap storms (case #76)
- Ubuntu 24.04 swapiness and vm.dirty settings: the small tunings that actually matter
- Proxmox No-Subscription Repository: Configure Repos Without Breaking Upgrades
- Two Internet Links at the Office: VPN Failover on MikroTik Without Chaos
- ZFS Small Random Writes: Why Mirrors Often Beat Parity
- ZFS Silent Corruption: What ZFS Detects That RAID Often Misses
- Proxmox “bridge port has no carrier”: Fast Troubleshooting for Cable, Switch, and Driver Issues
- CSS for Markdown Content: Sane Defaults That Don’t Break Production
- WordPress Is Slow: Find the Bottleneck Step by Step (Server, Plugins, or Database)
- Proxmox 2FA Lockout: How to Avoid It (and How to Recover Fast)
- SMTP Throttling: Prove It’s the Provider and Adapt Cleanly
- WordPress “Max execution time exceeded”: why it happens and safe fixes
- ZFS zdb -C: Reading Pool Config Straight From Disk
- SPF Softfail vs Fail: Pick the Setting That Won’t Backfire
- Proxmox storage “not available on node”: why it exists but you can’t use it
- DMARC quarantine vs reject: when to switch and how to roll it out safely
- WordPress “Allowed memory size exhausted”: fix it for good
- WordPress 403 Forbidden: Diagnose and Fix Permissions, WAF Rules, and Blocking