Getting NFS error when try to mount a share from EMC isilion RPC Error: Authentication error (retrying) or timeout

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux
  • EMC Isilion
  • OneFS 5.0 - 5.5
  • OneFS 6.0 - 6.5
  • OneFS 7.0

Issue

  • We are trying to mount NAS share. It is working for one server and for other we are getting below NFS error.

mount[13328]: mount to NFS server 'nfs.example.com' failed: RPC Error: Authentication error (retrying).

Resolution

  • By default, the NFS server in OneFS accepts NFS connections only from privileged ports (TCP/IP ports 1023 and lower). EMC provide an article explains how to configure OneFS to allow NFS mounts from unprivileged ports (1024 and higher).

  • Please contact EMC for the procedure to allow the connection in port 1024 and higher.

Root Cause

OneFS accepts NFS connections only from privileged ports (TCP/IP ports 1023 and lower).

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