XDMCP client and Fedora firewall
Hi all,
I have two machines running on a network, one running Fedora Core 4 (the XDMCP client) and the other running Fedora Core 5 (the XDMCP server). I have the FC5 XDMCP server firewall configured correctly (allowing 177:udp & 6000:tcp), and if I run the FC4 XDMCP client without a firewall, everything works fine, i.e. I can run XDMCP chooser on the FC4 XDMCP client successfully, see the FC5 XDMCP server, and start an X session.
However, if I enable the firewall on the FC4 XDMCP client, the FC4 XDMCP chooser starts, but does not see the FC5 XDMCP client. If I start ethereal on the FC5 XDMCP client, here's what I see:
FC4 Client FC5 Server
-------- UDP Broadcast Query ---------->
Dest Port: 177
Src Port: 32773
<------- UDP Willing ------------------
Dest Port: 32773
Src Port: 177
-------- ICMP Dest Unreachable -------->
If I allow port 32773 on the FC4 XDMCP client, everything works fine. However, the FC4 XDMCP client port number is not always 32773.
Is it possible to run the Fedora firewall on an XDMCP client? If so, how do I do this? Is this similar to the NFS issues?
Thanks,
Michael White
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