claude-memory/graph/fixes/ssh-known-hosts-stale-key-when-reusing-lxc-ip-addresses-321ce8.md

689 B

id type title tags importance confidence created updated
321ce884-ca3f-4c8d-945b-32069a857704 fix SSH known_hosts stale key when reusing LXC IP addresses
proxmox
ssh
homelab
fix
0.6 0.8 2026-02-20T03:59:41.688515+00:00 2026-02-20T03:59:41.688515+00:00

When provisioning CT 302 (claude-runner) at 10.10.0.148 (same IP as deleted LXC 300), SSH connections failed with "REMOTE HOST IDENTIFICATION HAS CHANGED" on both desktop and N8N LXC. Fix: ssh-keygen -R 10.10.0.148 on each client that previously connected to the old LXC, then reconnect with -o StrictHostKeyChecking=accept-new. Had to clear it on desktop (known_hosts:27) and on N8N LXC (known_hosts:1).