IPv4 Down? Linux, WireGuard, and Hetzner Saved My Internet!

A power outage knocked out my IPv4 internet connectivity, leaving only IPv6, but many websites were inaccessible. I used a Hetzner VPS, WireGuard, and Linux network namespaces to cleverly fix this. By setting up a WireGuard server on the VPS, I tunneled my IPv6 connection to restore IPv4 functionality. Network namespaces allowed me to run my work VPN and Docker without interfering with WireGuard. I also solved WireGuard MTU issues. This whole process highlighted the flexibility and problem-solving power of Linux.