Autofs5 runs out of open ports to mount with

Solution Verified - Updated -

Issue

  • While stressing the server by simultaneous logging hundreds of users, autofs runs out of open ports to mount filesystems with and starts using reserved ports (which obviously doesn't work).
  • Is there a way for autofs/rpc/NFS to widen it's port pool to allow for more mounts via autofs or are we stuck with whatever's available under 1024?

Environment

  • Red Hat Enterprise Linux 6.1
  • NFS, Autofs

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