TLDR: What ports do I need open on my NFS server for Proxmox nodes to discover and use exports?
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Due to some recent changes in our switching setup I've had to enable the firewall on our NFS server (which used to only be physically connected to Proxmox nodes). I've opened the usual ports for NFS, limited things to the appropriate subnet, and tested it all out with some manual mounts. Here's what's open:
2049 (tcp/udp)
111 (tcp/udp)
4045 (tcp/udp)
1110 (tcp/udp)
While I can write and everything works when mounted manually, when I attempt to add NFS shares via the web GUI I get connection errors and the dropdown list of exports never populates. As soon as I disable iptables on the NFS server the web GUI works fine, the export list populates and VMs run without issue. This would seem to indicate I'm missing a port or two but the Proxmox storage wiki doesn't help. Attempts to solve the problem by using netstat have been unsuccessful due to the large amount of unrelated traffic on both the Proxmox node and the storage server. Any help is greatly appreciated.
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Due to some recent changes in our switching setup I've had to enable the firewall on our NFS server (which used to only be physically connected to Proxmox nodes). I've opened the usual ports for NFS, limited things to the appropriate subnet, and tested it all out with some manual mounts. Here's what's open:
2049 (tcp/udp)
111 (tcp/udp)
4045 (tcp/udp)
1110 (tcp/udp)
While I can write and everything works when mounted manually, when I attempt to add NFS shares via the web GUI I get connection errors and the dropdown list of exports never populates. As soon as I disable iptables on the NFS server the web GUI works fine, the export list populates and VMs run without issue. This would seem to indicate I'm missing a port or two but the Proxmox storage wiki doesn't help. Attempts to solve the problem by using netstat have been unsuccessful due to the large amount of unrelated traffic on both the Proxmox node and the storage server. Any help is greatly appreciated.
