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Locked myself out of Oracle A1 ARM instance after setting up WireGuard — can ping but can't SSH, serial console needs password I never set

Reddit r/selfhosted·u/Proshantoop·about 1 month ago
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Locked myself out of Oracle A1 ARM instance after setting up WireGuard — can ping but can't SSH, serial console needs password I never set Hey all, I have two Oracle Free Tier instances: \- E2 micro (x86) — running WireGuard via wg-easy in Docker \- A1 ARM — connected to the VPN as a peer After connecting the A1 to WireGuard, I can no longer SSH into it from outside. Here's what I know so far: What works: • SSH into E2 ✅ • wg show on E2 shows A1 peer with a handshake \~2 min ago ✅ • Ping from inside the WireGuard container to 10.8.0.3 (A1's VPN IP) works fine — 0% packet loss ✅ What doesn't work: • SSH to A1's public IP — times out ❌ • SSH to A1's VPN IP (10.8.0.3) from E2 — times out ❌ • My local machine is not on the VPN so I can't reach 10.8.0.3 directly ❌ • Serial console via Oracle Cloud Shell asks for a password — I never set one (Oracle Ubuntu images don't set passwords by default) ❌ Question: How do I get back in without being able to SSH?…

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