I run my server on RHEL 6.1.
My Ant tasks are run from Windows Viste Enterprise, sp2.
DNS is enabled on the server and i can connect to my client with both IP and machine name.
But when I invoke the DumpTask using the hostname of my server, I get 'Unable to dump coverage data'.
If I try to do the same using a tunnel and 127.0.0.1, it works fine.
Opening a telnet session from Windows also works, so there is no firewall blocking the port.
Setting up other socket servers on both sides is not a problem either.