how to change the interface used for cluster communication

[olivier68]

Hi,

I have the 2 servers which have both a public ip address on the ens0 interface and a private ip vmbr2.
when I joined the 2nd server to the cluster I used the private ip and the cluster works well UDP traffic port 5405 flows between both private IPs.
But in the web interface I cannot manage one server from the other one because I have communication problems.
tcpdump shows that server1 uses its public ip to communicate with server2 port 8006

how can I change this behavior?

Thanks in advance
Olivier

 

[a.davanzo]

see here:
https://pve.proxmox.com/wiki/Separate_Cluster_Network

on:

Setup on a Running Cluster​

 

[olivier68]

in fact corosync.conf is correct. it has the privite IPs. In the GUI both nodes are green and communication on port 5405 uses the right IPs. But if I try to click on any element (for example Summary) from the other node I get a Connection error 595: Network is unreachable. Tcpdump shows that the api calls on port 8006 are done from the public ip from one server to the public ip from the other

 

[a.davanzo]

you reach it from fqdn or from IP ?
if FQDN check it wich IP resolve

 

[VictorSTS]

Check /etc/hosts in both servers and correct the entry for their hosts names using the proper IP for your setup. To apply thee changes, either reboot both hosts or

systemctl restart pve-cluster
systemctl restart pveproxy

 

[olivier68]

I did that thanks. Now I have one node working but for the other I still have errors
I got HTTP 596 on the following url (dev tools)
https://node2:8006/api2/json/nodes/node1/qemu/105/status/current
and I don't see any request in tcpdump