Backup error when args: -vnc is used.

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ozgurerdogan

Renowned Member
May 2, 2010
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Bursa, Turkey, Turkey
Some vms have:
args: -vnc 0.0.0.0:01 for vnc connection as stated https://pve.proxmox.com/wiki/VNC_Client_Access

But when backing up these vms by pbs, I got:
INFO: creating Proxmox Backup Server archive 'vm/3230/2025-04-11T00:50:21Z'
INFO: starting kvm to execute backup task
kvm: -vnc 0.0.0.0:01: Failed to find an available port: Address already in use
ERROR: start failed: QEMU exited with code 1
INFO: aborting backup job
ERROR: VM 3230 not running
VM 3230 not running
ERROR: Backup of VM 3230 failed - start failed: QEMU exited with code 1


How can I configure persistent external VNC access without using the args: -vnc 0.0.0.0:01 line?
This line causes conflicts during backup, so I'm looking for a cleaner method that doesn't interfere with Proxmox Backup Server.

Any advise?
 
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