ports used for synchronization between cluster nodes

geographically away
Is the latency in the single digit ms range? Do you have a stable, redundant connection? Can you provide a 3rd vote? E.g. Qdevice?

These questions are especially important if you want to use HA. Otherwise, two single nodes might be the better approach. In case you want to (live) migrate between them, you can do so manually via the CLI. But that call has a ton of parameters, and the Datacenter Manager (PDM, currently in alpha) is already a good option to trigger the remote migrations.

Besides that, the firewall config has a list of default ports that will be opened if the integrated firewall is used: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#pve_firewall_default_rules
That should help you for your question
:)

Ignore this, I confused the forum, see my reply further below.
 
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Is the latency in the single digit ms range? Do you have a stable, redundant connection? Can you provide a 3rd vote? E.g. Qdevice?

These questions are especially important if you want to use HA. Otherwise, two single nodes might be the better approach. In case you want to (live) migrate between them, you can do so manually via the CLI. But that call has a ton of parameters, and the Datacenter Manager (PDM, currently in alpha) is already a good option to trigger the remote migrations.

Besides that, the firewall config has a list of default ports that will be opened if the integrated firewall is used: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#pve_firewall_default_rules
That should help you for your question :)
Hi Aaron,

thanks for you answer, but given the links you provided point to Proxmox VE I think you misunderstood ... or I misunderstood. I am writing in a HA forum regarding Proxmox MAIL GATEWAY ... not VE.

I had two nodes geographically away but there was a VPN in between that would allow all protocols to go thru. These two nodes would work perfectly even though they were remotely away.
In this case I was trying to avoid the vpn and open certain ports for connections between them (the two nodes).
 
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I am writing in a HA forum regarding Proxmox MAIL GATEWAY ... not VE.
Ah sorry, didn't look too closely in which forum the post was...

In that case, most of my reply is void ;)

SSH and the HTTP API port ist what is needed. So port 22 and 8006, TCP.
 
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