wins hook (G) When Samba is running as a WINS server this allows you to call an external program for all changes to the WINS database. The primary use for this option is to allow the dynamic update of external name resolution databases such as dynamic DNS. The wins hook parameter specifies the name of a script or executable that will be called as follows: wins_hook operation name nametype ttl IP_list The first argument is the operation and is one of "add", "delete", or "refresh". In most cases the operation can be ignored as the rest of the parameters provide sufficient information. Note that "refresh" may sometimes be called when the name has not previously been added, in that case it should be treated as an add. The second argument is the NetBIOS name. If the name is not a legal name then the wins hook is not called. Legal names contain only letters, digits, hyphens, underscores and periods. The third argument is the NetBIOS name type as a 2 digit hexadecimal number. The fourth argument is the TTL (time to live) for the name in seconds. The fifth and subsequent arguments are the IP addresses currently registered for that name. If this list is empty then the name should be deleted. An example script that calls the BIND dynamic DNS update program nsupdate is provided in the examples directory of the Samba source code.