How to configure a system as an NFSv3 server which sits behind a firewall with NFS clients outside of the firewall?

Solution Verified - Updated -

Issue

  • Cannot connect to my NFS server which sits behind a firewall.
  • How to assign permanent ports to NFS services?
  • How to bind RPC services, which are related to NFS, to a static port?

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4
  • NFS version 3

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