Month: June 2026

Breaking the 10 MB/s Barrier: A Faster, Sequential Alternative to BTRFS RAID5/6 Scrubbing

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If you are running a multi-disk BTRFS array using a RAID5 or RAID6 layout—especially over an encryption layer like LUKS—you are likely familiar with the dreaded “Scrub Crawl.” You kick off a routine btrfs scrub, expecting your modern SATA drives to hum along at their typical 100+ MB/s sequential speeds. Instead, you open iotop or … Read more

Secure reverse access with Systemd and UNIX Domain Sockets (without AutoSSH)

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Navigating strict firewalls, carrier-grade NAT (CGNAT), or internal networks lacking a static public IP is a common infrastructure challenge. The classic answer is a Reverse SSH Tunnel—forcing a device inside the restrictive network to open an outbound connection to a public Virtual Private Server (VPS), mapping a route back to its local SSH daemon. For … Read more