Description
NBFSD is a NetBackup media server process that is required for the NetBackup GRT feature. NBFSD is a custom-written NFS protocol and is designed to allow only secure NetBackup client connection.
From GRT client's perspective (such as Microsoft Exchange Server, SharePoint Server and Windows Domain Controller), NetBackup utilizes Windows OS "Client for NFS" module to connect to NBFSD port on the media server. As such, any client port customizations must follow Microsoft's Client for NFS guideline.
One common scenario is to modify the "Client for NFS"'s initiating port to use a non-reserved port (1024+) to enhance security. This can be achieved by editing the client's registry:
- Click Start > Run, and run:
regedit- Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.
- Browse to HKLM\Software\Microsoft\ClientforNFS\CurrentVersion\Default\
- Double-click UseReservedPorts and assign a value of 0.
- If the registry entry does not exist, right click and create a DWORD (32-bit) Value named: UseReservedPorts, and assign the value of 0.
- Note: It is NOT possible to assign a specific port range (such as 1200 to 1400) for "Client for NFS" to use.
- Restart "Client for NFS" service. (see Related Articles below)
Additional Information:
- Unlocking restricted ports for Windows NFS Client: https://blogs.technet.microsoft.com/sfu/2009/11/20/unlocking-restricted-ports-for-windows-nfs-client/
- Service overview and network port requirements for Windows: https://support.microsoft.com/en-us/help/832017/service-overview-and-network-port-requirements-for-windows
- See Related Articles below.
Related Knowledge Base Articles
Was this content helpful?
Translated Content
Please note that this document is a translation from English, and may have been machine-translated. It is possible that updates have been made to the original version after this document was translated and published. Veritas does not guarantee the accuracy regarding the completeness of the translation. You may also refer to the English Version of this knowledge base article for up-to-date information.