[Samba] Print server communications back to the client during printing

[Ryan Novosielski]

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Jeremy Allison wrote:
> On Mon, Oct 13, 2008 at 11:57:45AM -0400, Gerald (Jerry) Carter wrote:
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>> Taylor, Marc wrote:
>>> Hello All,
>>>
>>> I was wondering if anyone knows why a print server needs to talk back on
>>> the submitting client's ports 139 or 445?
>> It's Microsoft's async print change notification protocol.  Jeremy
>> had talked about adding a separate timetou for the back channel connect,
>> but I don't remember if this was ever done.
> 
> Like the man said, it's Microsoft's doing :-). No, we don't have
> a separate timeout in spoolss_connect_to_client()
> (rpc_server/srv_spoolss_nt.c) but we could add one.

How does this actually work in the case of Samba? Does the Samba server
attempt to contact the NT machine, and is there a benefit to allowing
this to happen?

- --
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 |Y#| |  | |\/| |  \ |\ |  | |Ryan Novosielski - Systems Programmer II
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