GUI NFS Mounting under PVE v9.x.y requiring port 892 now?

C

Chris Olive

Active Member
Apr 8, 2020
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Recently upgraded all PVE v8 nodes to PVE v9 nodes. I have one node on an isolated network with holes punched through the firewall to allow NFS mounting on my LAN that worked at one time. Suddenly not working. showmount on the command line hangs. Opened up port 892 (in addition to 111 and 2049, which is all I had open before) and it all worked again. Not even adding the mount point manually in the GUI worked so seems like PVE v9 wants to validate against a list still internally. Only adding port 892 to my firewall rule allowed this to work.

Can anyone validate this? I searched the forum for '892' and came up with nothing.
 
Either use NFSv4 (port 2049) or otherwise mountd on 892 is required if you want directory-listings/mounting on v3 aswell.
 
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That’s the thing — this is all NFS v4 and I could not get the mount to work wo opening 892 for the GUI. Mounting to the PVE node at the command line worked fine without 892 open.
 
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