After stumblin about and wasting people's time. I may have made some progress.
First was the kind help that the jabref port can be found by searching on line for "net.sf.jabref.logic.remote.server" Remote port number". Doing so revealed that jabref's default port is probably 6050. I wouild never have thought to search for that on line. Now the quetion is, what process is using that port? $ sudo ss -pt state listening 'sport = :6050' Recv-Q Send-Q Local Address:Port Peer Address:Port Process 0 1 [::ffff:127.0.0.1]:6050 *:* users:(("java",pid=1675,fd=14)) Is java holding that port? Is jabref then trying to use the port for itself? If so, is this a bug? (I run testing) Is there any way I can tell java or jabref to use next available free port? -- Haines Brown /"\ \ / ASCII Ribbon Campaign X against HTML e-mail / \