Wiki
Technical documentation, guides, and notes on solving complex problems.
Storage
Replacing a Failed NVMe in an OVH mdadm RAID1 Mirror
What to do after OVH swaps a dead NVMe: spot rescue mode, prove the OS survived, clone the partition layout, and resync the mirror without touching the good disk
SecurityLet's Encrypt Certificates Behind Round-Robin DNS with Ansible
Issuing and deploying Let's Encrypt certificates across multiple servers sharing a round-robin DNS name, using DNS-01 challenges across Cloudflare and Route53
AWS Infrastructure Discovery & Terraform Generator
A toolkit for discovering existing AWS infrastructure and automatically generating Terraform configurations with proper resource references.
NetworkingLinux Router: Port Forwarding and Hairpin NAT with iptables
Configure port forwarding and hairpin NAT (NAT loopback) on a Linux router using iptables