What is NFSv3?
NFSv3 is typically used with NLM, an auxiliary protocol for file locking. NLM is stateful that the server LOCKD keeps track of locks. In NFSv4, locking operations are part of the protocol. NFSv4 servers keep track of open files and delegations.
Does NFS have security?
The Network File System (NFS) is a widely available technology that allows data to be shared between various hosts on a network. NFS also supports the use of Kerberos 5 authentication in addition to DES. Kerberos 5 security is provided under a protocol mechanism called RPCSEC_GSS.
Is NFS v4 secure?
NFSv4 includes ACL support based on the Microsoft Windows NT model, not the POSIX model, because of the Microsoft Windows NT model’s features and wide deployment. Another important security feature of NFSv4 is the removal of the use of the MOUNT protocol for mounting file systems.
What is the difference between NFSv3 and NFSv4?
Here is a short summary of the differences between NFSv4 and NFS versions 2 and 3: The NFSv4 protocol introduces state, whereas the NFS version 2 and 3 protocols are stateless. The usage information of an object by an NFSv4 client is maintained by the server.
What is NFS and DFS?
Network File System ( NFS ) is a distributed file system ( DFS ) developed by Sun Microsystems. This allows directory structures to be spread over the net- worked computing systems. A DFS is a file system whose clients, servers and storage devices are dis- persed among the machines of distributed system.
Is SMB encrypted?
SMB Encryption uses the Advanced Encryption Standard (AES)-GCM and CCM algorithm to encrypt and decrypt the data. AES-CMAC and AES-GMAC also provide data integrity validation (signing) for encrypted file shares, regardless of the SMB signing settings.
Should I use NFS or SMB?
NFS offers better performance and is unbeatable if the files are medium-sized or small. For larger files, the timings of both methods are almost the same. In the case of sequential read, the performance of NFS and SMB are almost the same when using plain text. However, with encryption, NFS is better than SMB.
What is AFS and NFS?
In AFS, the server keeps track of which files are opened by which clients (as was not in the case of NFS). In other words, AFS has stateful servers, whereas NFS has stateless servers.
What ports does NFSV3 use?
Note: NFSV3 uses the dynamic ports for NLM, MNT, and STATD services. When an NFS server is used with the firewall, these services must be configured with static ports. Allow all external communications on TCP and UDP port 111 by using the protocol node IPs.