On Thu, 5 Feb 2004, Les Mikesell wrote:

> On Thu, 2004-02-05 at 17:17, [EMAIL PROTECTED] wrote:
> 
> > If he's doing printing to an LTSP workstation, it does the same thing as 
> > a jetdirect interface.  it starts printing the data as soon as the 
> > connection is started.
> 
> OK, next guess: does it do an IDENT query back to the source?  Or
> a reverse DNS lookup?  3 seconds seems too slow for a working DNS
> and too fast for a DNS problem, but something must be happening.


Nope.  No ident.  and I agree about the 3 seconds probably not being a 
dns lookup issue.

I suggest running tcpdump, watching port 9100, to see what kind of 
traffic is flowing when he hits the PRINT key.

something like this:

   tcpdump -i eth0 port 9100 or 53


That should catch any print or dns packets.  at least this will show at 
what point the first connection is made between the spooler running on 
the server, and the lp_server running on the workstation.  If it spews
out too much info, then you could run:

   tcpdump -i eth0 -s 1520 -w /tmp/tcpdump.out port 9100 or 53

and that will capture the packet stream to a file.  That file can then
be viewed with ethereal using:

   ethereal -r /tmp/tcpdump.out

Then, you can browse through the file looking at timestamps and packet 
types.  It might show exactly what is happing (or trying to happen).

Jim.



> 
> ---
>   Les Mikesell
>    [EMAIL PROTECTED]
> 
> 
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