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How to block the CIFS and NFS protocols on the Element mNode

Last Updated:

Applies to

  • NetApp SolidFire
  • NetApp HCI
  • Management node (mNode) running management services 2.11 or above


The Element Management Node (mNode) utilizes an SMB (Samba) share during the firmware upgrade process for compute nodes; as a result, these protocols and associated ports are open on the mNode and will appear as such in the results of a security scan:

  • NFS - 2049 TCP/UDP
  • CIFS - 445 TCP / 139 TCP

A patch is available which can be used to:

  • block the ports for one or both of these protocols on the mNode
  • unblock the ports for these protocols (this is necessary in order to run a compute node upgrade; the ports can be re-blocked afterwards)



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