NetBackup malware detection ports
A scan host is a host machine that has the required malware tool configured. Once it is integrated with NetBackup, NetBackup initiates scanning on the scan host. The scan host must have a share type configured, that is, an NFS or SMB client. Malware scanner ports must be open for NFS or SMB exports to be accessible.
For more information on the requirements for scan host, refer to the 'Prerequisites for a scan host' section of NetBackup Security and Encryption Guide.
For more information on NFS and SMB, see the following:
What ports need to be open for Samba to communicate with clients?