What is the default SMB protocol for Windows Server 2008 R2?

SMB 2.1
SMB 2.1 is supported on Windows clients since Windows 7 and Windows Server 2008 R2, it is by default enabled. SMB 3.0 is supported on Windows clients since Windows 8 and Windows Server 2012, it is by default enabled.

What is the default port for SMB?

As such, SMB requires network ports on a computer or server to enable communication to other systems. SMB uses either IP port 139 or 445.

How do I find my SMB port number?

To identify ports and network interfaces your Samba domain member is listening on, run: # netstat -tulpn | egrep “smbd|nmbd|winbind” tcp 0 0 127.0.

Is port 445 open by default?

If the server has NBT enabled, it listens on UDP ports 137 and 138, and TCP ports 139 and 445. All four ports are open as default in all versions of Windows, including Windows 10 and Windows Server 2019.

Is SMB still used?

SMB1 is Dead! The end of SMB version 1 (SMB1) topic has been discussed in great detail by Ned Pyle, who runs the SMB show here at Microsoft.

Is port 139 still used?

Port 139 is used for File and Printer Sharing but happens to be the single most dangerous Port on the Internet. This is so because it leaves the hard disk of a user exposed to hackers.

Does NFS use SMB?

The acronym NFS means “Network File System.” The NFS protocol was developed by Sun Microsystems and serves essentially the same purpose as SMB (i.e., to access files systems over a network as if they were local), but is entirely incompatible with CIFS/SMB.

Does Windows use NFS or SMB?

Server Messaging protocol (SMB) is the native file sharing protocol implemented in Windows systems. The Network File System (NFS) protocol is used by Linux systems to share files and folders. NFS mount options use export policies in addition to file and folder permissions as a security mechanism.

What port does SMB use?

As such, SMB requires network ports on a computer or server to enable communication to other systems. SMB uses either IP port 139 or 445. Port 139: SMB originally ran on top of NetBIOS using port 139.

What port is used by SMB protocol?

SMB has always been a network file sharing protocol. As such, SMB requires network ports on a computer or server to enable communication to other systems. SMB uses either IP port 139 or 445 .

What is SMB port and port number?

Server Message Block provides file sharing, network browsing, printing services, and interprocess communication over a network. The SMB protocol relies on lower-level protocols for transport. The Microsoft SMB protocol was often used with NetBIOS over TCP/IP (NBT) over UDP, using port numbers 137 and 138 , and TCP port numbers 137 and 139 .

Is it SMB or CIFS for Nas?

CIFS is now considered obsolete, because most modern data storage systems use the more robust Server Message Block ( SMB) 2.0 and 3.0 file-sharing protocols, which were major upgrades to CIFS. CIFS/SMB and the Network File System ( NFS) are the two major protocols used in network-attached storage ( NAS) systems.