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On Saturday 20 March 2004 12:41 pm, Bill Canaday wrote:
> I am trying to enable remote printing from my wifes computer through
> mine. The machines can communicate with each other via ping, arping, ssh
> and rsync. They can also communicate with the internet. Software on both
> machines is kept up to date via YUM.
Have you opened the port in ipfilters?
> Using the RedHat-printer-config GUI in both machines, I have set sharing
> to permit browsing to all hosts and to automatically find remote shared
> queues. According to ps -ax | grep cups, Cupsd is running on both
> machines and nmap shows port 631 open on both.
>
> Yet my wifes machine (sender) gives me this error when I try to run the
> cups test page.
> lpr: unable to print file: server-error-service-unavailable
>
> and tcpdump on my machine (acting as print server) shows contact as
> follows:
>
> tcpdump | grep ecclesiastes
>
> 12:08:10.429247 elisha.organic-earth.com.ipp >
> ecclesiastes.organic-earth.com.32980: P 62:346(284) ack 405 win 6432
> <nop,nop,timestamp 135190292 198709> (DF)
>
> 12:08:10.429240 ecclesiastes.organic-earth.com.32980 >
> elisha.organic-earth.com.ipp: . ack 62 win 5840 <nop,nop,timestamp 198709
> 135190292> (DF)
>
> 12:08:10.429405 ecclesiastes.organic-earth.com.32980 >
> elisha.organic-earth.com.ipp: . ack 346 win 6432 <nop,nop,timestamp
> 198709 135190292> (DF)
>
> 12:08:14.236853 ecclesiastes.organic-earth.com.32981 >
> elisha.organic-earth.com.ipp: S 565329688:565329688(0) win 5840 <mss
> 1460,sackOK,timestamp 199090 0,nop,wscale 0> (DF)
>
> 12:08:14.236930 elisha.organic-earth.com.ipp >
> ecclesiastes.organic-earth.com.32981: S 650880344:650880344(0) ack
> 565329689 win 5792 <mss 1460,sackOK,timestamp 135190673 199090,nop,wscale
> 0> (DF)
>
> (the end of which is:
> 11048 packets received by filter
> 9450 packets dropped by kernel
> 7903 packets received by filter
> 3492 packets dropped by kernel )
>
> I don't understand the above at all. Normally I get zero drops.
>
> My current best guess is that there is some error in my cups config on
> the print server machine but it is -only- a guess. Before I waste
> additional hours mucking about, can anyone shed any light on what is
> going on here?
>
> Bill
- --
Steve
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
Benjamin Franklin
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