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--- ubuntu:samba:smb_protocol_versions [2019/12/09 00:27] – [Configuration to enable SMBv2] peter
+++ ubuntu:samba:smb_protocol_versions [2020/07/15 09:30] (current) – external edit 127.0.0.1
@@ Line 27: / Line 27: @@
 Add the following lines to /etc/samba/smb.conf
+<WRAP todo>
+TODO: Some of these may not work - so try different combinations.  PETER=FIX this
+</WRAP>
 <file bash /etc/samba/smb.conf>
@@ Line 35: / Line 40: @@
 min protocol = SMB2
 max protocol = SMB3
+protocol = SMB2
 client ipc min protocol = SMB2
 </file>
@@ Line 53: / Line 59: @@
 ...
 </file>
+<WRAP alert>
+WannaCry can spread via SMBv2 as well:
+https://securelist.com/blog/incidents/78351/wannacry-ransomware-used-in-widespread-attacks-all-over-the-world/
+</WRAP>
 The following gives best options:
@@ Line 60: / Line 73: @@
    client max protocol = SMB3
 </file>
+Also this works well:
+<file bash>
+server min protocol = SMB2_10
+client max protocol = SMB3
+client min protocol = SMB2_10
+</file>
+----
+===== Errors =====
+Server:
+<code bash>
+min protocol = SMB2
+</code>
+Client:
+<code bash>
+smbclient -U=username -N –command=”dir Directory/*” //192.168.0.1/Directory
+</code>
+Error:
+<code bash>
+protocol negotiation failed: NT_STATUS_INVALID_NETWORK_RESPONSE
+</code>
+Try to Use:
+<code bash>
+protocol = SMB2
+</code>