Archived
showmount and the NFSv3 mount protocol need mountd reachable after querying portmapper on 111; the server was only opening TCP 111 and 2049, causing clients (e.g. Proxmox GUI NFS storage scan) to time out connecting to mountd on 20048. Also adds UDP for all three ports — portmapper, nfsd, and mountd all use both protocols. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>