[PVE-User] PVE Cluster: New authentication is required to access each node from GUI

Frank Thommen f.thommen at dkfz-heidelberg.de
Sat Jan 25 16:44:10 CET 2020

Dear all,

I have installed a 3-node PVE cluster as instructed on 
https://pve.proxmox.com/pve-docs/chapter-pvecm.html (usung commandline). 
  When I now connect via GUI to one node and select one of the other 
nodes, I get a "401" error message and then I am asked to authenticate 
to the other node.  So to see all nodes from all other nodes via GUI I 
would have to authenticate nine times.  I don't think that is as it 
should be ;-). I would assume that once I am logged in on the GUI of one 
of the cluster nodes, I can look at the other two nodes w/o additional 
authentication from this GUI.

The situation is somehow similar to the one described on 
but the suggested "pvecm updatecerts" (run on each node) only helped for 
a short time.  After a reboot of the nodes I am back to the potential 
nine authentications.

My three nodes are connected through a full 10GE mesh 
(https://pve.proxmox.com/wiki/Full_Mesh_Network_for_Ceph_Server) using 
broadcast bonds.  This mesh will finally also be used for Ceph.  I 
configured this mesh to be the cluster network (--link0).  As fallback 
(--link1) I used the regular LAN.

Does anyone have an idea what could be wrong and how this could be 
fixed?  Could the mesh with the broadcast bonds be the problem?  If yes, 
should I use an other type of mesh?  Unfortunately a full dedicated 
PVE-only network with a switch is not an option.  I can either use a 
mesh or the regular LAN in the datacenter.

The systems are running PVE 6.1-3.

Any help or hint is appreciated.


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