No subject

microsoft-ds      445/tcp
microsoft-ds      445/udp
------------------------------------------

Why is the connection refused?

Is this preventing Win2k from properly
displaying printer status?  I've noticed that
now we're running Win2k on all wkstns, noone can
tell when I've got a printer's queue disabled.
The printer is Paused, but jobs can be sent to
it, and no feedback is received to indicate
the job couldn't be queued...it just goes into
the bit bucket.

(I've also updated LPRng to 3.8.12, and samba to
2.2.5pre...something is broken somewhere, but I'm
not sure where.)

Jim

> -----Original Message-----
> From: Gerald Carter [mailto:jerry at samba.org]
> Sent: Tuesday, June 11, 2002 4:35 AM
> To: Tom Vandepoel
> Cc: samba at lists.samba.org
> Subject: Re: [Samba] spoolss back connections to client
> 
> 
> On Tue, 11 Jun 2002, Tom Vandepoel wrote:
> 
> > Since we've switched to spoolss printing (samba 2.2.4) it 
> seems that the
> > server is always trying to connect to the client. 
> > 
> > [2002/06/11 10:52:41, 3] lib/util_sock.c:open_socket_out(843)
> >   Connecting to 10.0.40.80 at port 445
> > [2002/06/11 10:52:41, 2] lib/util_sock.c:open_socket_out(871)
> >   error connecting to 10.0.40.80:445 (Connection refused)
> > [2002/06/11 10:52:41, 3] lib/util_sock.c:open_socket_out(843)
> >   Connecting to 10.0.40.80 at port 139
> > 
> > I've traced this back in the source to the 
> "spoolss_connect_to_client"
> > call in rpc_server/srv_spoolss_nt.c. It seems this is used 
> to reply back
> > to the client with printing info.
> 
> This is the printer change notification back channel.
> 
> > However, in our environment, such connections typically fail, as we
> > disable the "Server" service on NT/W2K clients as much as 
> possible. In
> > those cases, printing still works fine, so I'm starting to wonder if
> > these back connections are absolutely needed. They are especially
> > annoying when the back connection is made to a firewalled client; it
> > slows down response of the print server enormously (the server waits
> > until the back connection times out).
> > 
> > So, I was thinking; is there an smb.conf option (or could it be
> > implemented) to disable these back connections? What would 
> the impact be
> > if I modified the src_spoolss_replyopenprinter() routine to always
> > return false? Would that break anything?
> 
> Better to just comment out the SPOOLSS_RFFPCN and SPOOLSS_RFNPCN
> server functions.  However, certain changes will not be reflected on
> the client such as josb listings, etc....
> 
> btw....this is MS's model.  You'll have the same problem with
> a Win2k print server.  I do agree that it is a brain dead design...
> 
> 
> 
> 
> 
> 
> cheers, jerry
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