Lost IP to Webinterface

[niklas_t]

Hey,
so im running a proxmox server with 2 Ubuntu VMS that auto-start on boot.
Im passing the 2 GPUs of the machine straight to the VMS.
Now the problem is that i lost the IP/Port to the Proxmox web interface and since i pass the GPUs straight through I cant just plug in a cable and get the standard console that shows the IP/Port at the top.

How do i get to the IP again? any ideas?

 

[leesteken]

Can you login to one of the Ubuntu VMs and browse to the Proxmox GUI from there? They can probably reach the IP of the Proxmox host via the virtual network bridge (if you did not put them on a separate virtual bridge).
Please check your IOMMU groups with this command (on the Proxmox host): for d in /sys/kernel/iommu_groups/*/devices/*; do n=${d#*/iommu_groups/*}; n=${n%%/*}; printf 'IOMMU group %s ' "$n"; lspci -nns "${d##*/}"; done. If one of the GPUs is in the same IOMMU group as the network controller then the Proxmox host also loses that device (and the other ones in the group) when you start the VM, making it unreachable via IP.

 

[Chris]

HI,
you could scan you local network with a tools such as nmap from the VM or a different machine in the same subnet, if you still know the subnet address and netmask. Especially you could check for machines with open port 8006.

Another idea could be to look for the ip in the arp table, if you know the mac address for the interface in question.

This of course assumes the network interface has not been renamed and the interface config is invalid, as hinted by @leesteken

 

[niklas_t]

HI,
you could scan you local network with a tools such as nmap from the VM or a different machine in the same subnet, if you still know the subnet address and netmask. Especially you could check for machines with open port 8006.

Another idea could be to look for the ip in the arp table, if you know the mac address for the interface in question.

This of course assumes the network interface has not been renamed and the interface config is invalid, as hinted by @leesteken

if found a ip with this port open but i cant connect to it.
Is there any way to just boot into a shell or something?

 

[niklas_t]

HI,
you could scan you local network with a tools such as nmap from the VM or a different machine in the same subnet, if you still know the subnet address and netmask. Especially you could check for machines with open port 8006.

Another idea could be to look for the ip in the arp table, if you know the mac address for the interface in question.

This of course assumes the network interface has not been renamed and the interface config is invalid, as hinted by @leesteken

oh. i forgot to add https:// at the beginning. it works now