What command is used in Samba 3 to search for available workgroups and NetBIOS names?

The command used in Samba 3 to search for available workgroups and NetBIOS names is findsmb. The findsmb utility sends out NetBIOS name service queries to find available Samba servers on the network, along with their associated workgroups. It provides a list of active devices on the local subnet that are responding to these queries, thereby enabling the user to discover which workgroups and NetBIOS names are currently available.

This utility is particularly useful for troubleshooting or mapping out the Samba environment, especially in mixed networks where multiple workgroups and servers might be set up. While other commands may interact with Samba services or perform specific tasks, findsmb is specifically designed for network discovery.