LFCS Question #332: Real Exam Question with Answer & Explanation

Question

In order to restrict access to the SMB (445/tcp) port and stop the use of NetBIOS (139/tcp), what parameter is required in smb.conf in Samba 3?

Options

• Adisable netbios = Yes
• Bsmb port = 445
• Cdisable directhosting = No
• Dsocket options = port:445

Explanation

To restrict Samba's listening ports to only SMB (445/tcp) and prevent NetBIOS over TCP/IP (139/tcp), the smb port parameter in smb.conf should be used.

Common mistakes.

• A. The disable netbios parameter is not a standard or recognized configuration directive in Samba for controlling port usage.
• C. disable directhosting is not a valid Samba parameter for port control; 'direct hosting' refers to SMB over TCP, and this parameter would incorrectly suggest disabling it.
• D. The socket options parameter is used for setting low-level TCP socket options, not for specifying the listening port, and port:445 is not a valid syntax for this parameter.

Concept tested. Samba port configuration and NetBIOS disablement

Reference. https://www.samba.org/samba/docs/current/manpages/smb.conf.5.html

No community discussion yet for this question.