To generate an individual log file for each machine connecting to a Samba server, which configuration statement should be used?

The statement that is most suitable for generating an individual log file for each machine connecting to a Samba server is one that includes the %m variable. This variable represents the NetBIOS name of the client machine connecting to the Samba server. By using this configuration, Samba can create log files named according to the unique NetBIOS name of each client, allowing for easy identification and separate logging of activities from different machines.

When a client connects, Samba will substitute the %m placeholder with the NetBIOS name of that client, resulting in log files such as log.ClientName, where "ClientName" corresponds to the actual name of the machine that established the connection. This is particularly useful for troubleshooting and monitoring client-specific issues.

The other options include different variables that serve other purposes. For example, %c denotes the username of the client, %M represents the full DNS name of the connected client, and %I refers to the IP address of the connecting client. While these are useful in specific contexts, they do not provide individual logs based on the machine's NetBIOS name like %m does.