Can't access Web GUI anymore

[Deleted member 171039]

Hi guys, I'll give more details:
I usually access my proxmox server and all VMs in it through a tailscale network. Don't know what happened, but when I woke up this morning my proxmox instance GUI was not reachable anymore. Browser says "The connection was reset".
I can access proxmox and all the VMs via SSH without any problem.

This is the output of journalctl -f

Dec 16 21:20:12 hypervisor tailscaled[3882]: portmapper: failed to get PCP mapping: PCP response not ok, code 8
Dec 16 21:20:12 hypervisor tailscaled[3882]: portmapper: PMP probe failed due result code: {OpCode:128 ResultCode:NetworkFailure SecondsSinceEpoch:234625 MappingValidSeconds:0 InternalPort:0 ExternalPort:0 PublicAddr:0.0.0.0}
Dec 16 21:20:12 hypervisor tailscaled[3882]: portmapper: failed to get PCP mapping: PCP response not ok, code 8
Dec 16 21:20:12 hypervisor tailscaled[3882]: Accept: TCP{100.116.178.73:22 > 100.106.179.40:58289} 200 ok out
Dec 16 21:20:12 hypervisor tailscaled[3882]: Accept: TCP{100.116.178.73:22 > 100.106.179.40:58289} 432 ok out
Dec 16 21:20:16 hypervisor tailscaled[3882]: Accept: TCP{100.106.179.40:58869 > 100.116.178.73:8006} 64 tcp ok
Dec 16 21:20:25 hypervisor tailscaled[3882]: Accept: TCP{100.106.179.40:58289 > 100.116.178.73:22} 120 tcp non-syn
Dec 16 21:20:33 hypervisor tailscaled[3882]: portmapper: failed to get PCP mapping: PCP response not ok, code 8
Dec 16 21:20:33 hypervisor tailscaled[3882]: portmapper: PMP probe failed due result code: {OpCode:128 ResultCode:NetworkFailure SecondsSinceEpoch:234647 MappingValidSeconds:0 InternalPort:0 ExternalPort:0 PublicAddr:0.0.0.0}
Dec 16 21:20:33 hypervisor tailscaled[3882]: portmapper: failed to get PCP mapping: PCP response not ok, code 8
Dec 16 21:20:33 hypervisor tailscaled[3882]: Accept: TCP{100.116.178.73:22 > 100.106.179.40:58289} 544 ok out
Dec 16 21:20:59 hypervisor tailscaled[3882]: portmapper: failed to get PCP mapping: PCP response not ok, code 8
Dec 16 21:20:59 hypervisor tailscaled[3882]: portmapper: PMP probe failed due result code: {OpCode:128 ResultCode:NetworkFailure SecondsSinceEpoch:234672 MappingValidSeconds:0 InternalPort:0 ExternalPort:0 PublicAddr:0.0.0.0}
Dec 16 21:20:59 hypervisor tailscaled[3882]: portmapper: failed to get PCP mapping: PCP response not ok, code 8
Dec 16 21:20:59 hypervisor tailscaled[3882]: Accept: TCP{100.116.178.73:22 > 100.106.179.40:58289} 544 ok out
Dec 16 21:20:59 hypervisor tailscaled[3882]: Accept: TCP{100.106.179.40:58289 > 100.116.178.73:22} 52 tcp non-syn

Could someone help?

Thank you!

 

[bbgeek17]

Does " curl -ks https://localhost:8006" return results when you run in from the console of PVE?
What about "curl -ks https://LAN_IP:8006" - again from pve console?
Does this command or browser access work when you dont use tailscale? ie direct lan connection.

If everything works without 3rd party network in the middle, then logically the issue is in the tailscale configuration/state, which would be outside of PVE installation and configuration.

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[Deleted member 171039]

"curl -ks https://localhost:8006" returns an html file. Does this mean that everything is okay on proxmox side?

 

[bbgeek17]

Most likely, the other two steps would confirm it 100%:

What about "curl -ks https://LAN_IP:8006" - again from pve console?
Does this command or browser access work when you dont use tailscale? ie direct lan connection.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox