>From this description I assume the printer is physically connected to the Ubuntu machine by USB or parallel cable.<br><br>If so, that machine must be configed to "share" the printer. Easiest route is to use the web tool for cups on the Ubuntu box . Browse to <a href="http://localhost:631">http://localhost:631</a>, then administration, the check the "Share" and "Allow printing from the Internet" (Block access to the printer at the firewall) and then set your Centos to use IPP.<br>
<br><div class="gmail_quote">On Fri, May 9, 2008 at 1:46 PM, Stephen R. Blevins <<a href="mailto:srblevi@worldnet.att.net">srblevi@worldnet.att.net</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Situation:<br>
1) I recently re-installed Centos 5.1, thereby necessitating my<br>
re-establishing previously-working remote printing. Printer device is<br>
defined as IPP (Internet Printing Protocol).<br>
2) My wife's system just upgraded to Ubuntu 8.04, Hardy Heron. The<br>
Ubuntu FireWall was enabled, and a 631/udp rule was "allowed" (settings<br>
dictated by the Centos Deployment Guide). This has been the printer<br>
server for the remote printer defined on my Centos system. It<br>
functioned under Ubuntu 7.10, Gutsy Gibbon. Local printing on this<br>
system functions.<br>
<br>
Problem:<br>
Attempts to print from the Centos system through the Ubuntu system<br>
to the Ubuntu printer do not function (print jobs hang in the Centos<br>
printer queue). Redefining the Centos printer device as LPD/LPR doesn't<br>
help (besides, the labels say this definition is for UNIX printer<br>
servers, not Linux printer servers).<br>
<br>
Question:<br>
What lack I yet?<br>
<font color="#888888"><br>
<br>
--<br>
Stephen R. Blevins<br>
<a href="mailto:srblevi@worldnet.att.net">srblevi@worldnet.att.net</a><br>
<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>-- <br>James P. Kinney III <br>