SMB – How to Find SMB Version Enabled on Remote Host

server-message-blockwindows

My local machine is running Windows 7, which supports the latest released version of the SMB protocol (SMB 2.1). I also have a remote host, and I don't know what operating system or SMB-support software is installed on that remote host; I only know that the remote host supports some version of the SMB protocol.

How can I find out, from the command prompt (or PowerShell) of my Windows 7 machine, what version of SMB is supported by that remote host?

Edit: although I mention Windows 7 above, I'm sure that this question is relevant to many system/network administrators or desktop support personnel, hence why I'm posting the question here instead of at superuser.com.

Best Answer

https://nmap.org/nsedoc/scripts/smb-protocols.html

Example Usage

nmap -p445 --script smb-protocols <target>
nmap -p139 --script smb-protocols <target>

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Windows – How to find what process is holding a file open in Windows

I've had success with Sysinternals Process Explorer. With this, you can search to find what process(es) have a file open, and you can use it to close the handle(s) if you want. Of course, it is safer to close the whole process. Exercise caution and judgement.

To find a specific file, use the menu option Find->Find Handle or DLL... Type in part of the path to the file. The list of processes will appear below.

If you prefer command line, Sysinternals suite includes command line tool Handle, that lists open handles.

Examples

c:\Program Files\SysinternalsSuite>handle.exe |findstr /i "e:\" (finds all files opened from drive e:\"
c:\Program Files\SysinternalsSuite>handle.exe |findstr /i "file-or-path-in-question"

Windows – Useful Command-line Commands on Windows

A little known one is

getmac

It shows the MAC address(es) of your network adapter(s).

Screenshot of running getmac from a Windows commandline window.

Best Answer

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Windows – How to find what process is holding a file open in Windows

Windows – Useful Command-line Commands on Windows

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