FTP File SharingOn the Protocols page, click the switch to turn on FTP (File Transfer Protocol) and allow access to yourpx2-300d Network Storage.Click to select either FTP or secure FTP (SFTP) or both. If you select and enable SFTP, you cannothave the secure rsync protocol enabled.When you turn on FTP, you can send files to your px2-300d.TFTPOn the Protocols page, click the switch to turn on TFTP (Trivial File Transfer Protocol) and allow access toyour px2-300d Network Storage. When you turn TFTP on, you can send files to your px2-300d using FTP.NFS File SharingOn the Protocols page, click the switch to turn on NFS (Network File System). This protocol allows remotehosts to mount file systems over a network and interact with them as though they were mounted locally toyour px2-300d. Your px2-300d Network Storage uses NFS version 4, which improves security andperformance.Select an option to choose how users on client computers are mapped to the px2-300d:Set the squashing options for NFS:● To have all users, including root, map as guest, select Treat client users as guest (all_squash). All files are owned by user guest, and all users accessing the px2-300d have the sameaccess rights. If you have enabled Active Directory on your px2-300d, this is the only optionavailable for mapping client computers.● To have all users map as themselves but root maps as guest, select Allow full access for clientusers other than root (root_squash).● To have all users map as themselves, including root, select Allow all client users full access.If the px2-300d is using Active Directory mode, you see the following NFS version 4 security settings:● System security - This uses Linux system security.● Kerberos security - Kerberos is a protocol that uses secret key cryptography for authenticationbetween client and server applications.● All - Combines system security and Kerberos security.Once enabled, add NFS access rules for each secure Share from the Managing Shares page. NFSprovides another protocol for sharing storage data with Linux hosts. When NFS is enabled, you canconfigure rules for host-based access to secure Shares.Rules can be added to secure Shares to specify the hosts that are allowed to access Shares using NFS.For example, *.cs.foo.com matches all hosts in the domain cs.foo.com. To export a Share to all hosts onan IP address or local network simultaneously, specify an IP address and netmask pair asaddress/netmask where the netmask can be in dotted-decimal format, or as a contiguous mask length. Forexample, either /255.255.252.0 or /22 will result in identical local networks.To change any NFS settings, click .Sharing FilesUsing Protocols to Share Files 57