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Hi Jerry, re: > Michael is trying to access the SPARE feed on one of our LDM servers. He is > getting the error: > > "couldn't connect to LDM 6 on fred.ssec.wisc.edu using port 388; : RPC: > Remote system error - Connection refused" > > He can ldmping our server. Other external users can access the ldm SPARE > feed. (see some details below) Actually, the ldmping output Michael sent along: > [ldm@opc-lw-goesrpg: ~/ldm/etc]$ ldmping -i 5 -h fred.ssec.wisc.edu > Aug 17 18:28:45 INFO: State Elapsed Port Remote_Host rpc_stat > Aug 17 18:28:45 INFO: Resolving fred.ssec.wisc.edu to 128.104.109.245 took > 0.032546 seconds > Aug 17 18:29:02 INFO: Resolving fred.ssec.wisc.edu to 128.104.109.245 took > 0.001244 seconds > Aug 17 18:29:19 INFO: Resolving fred.ssec.wisc.edu to 128.104.109.245 took > 0.001223 seconds > Aug 17 18:29:36 INFO: Resolving fred.ssec.wisc.edu to 128.104.109.245 took > 0.001181 seconds > Aug 17 18:29:53 INFO: Resolving fred.ssec.wisc.edu to 128.104.109.245 took > 0.001149 seconds > Do you have any ideas why he can not connect? shows that his LDM can _not_ connect to the LDM on fred.ssec.wisc.edu. The output for an LDM that can connect will look like: $ ldmping oliver.unidata.ucar.edu Aug 17 20:07:48 INFO: State Elapsed Port Remote_Host rpc_stat Aug 17 20:07:48 INFO: Resolving oliver.unidata.ucar.edu to 128.117.156.17 took 0.009147 seconds Aug 17 20:07:48 INFO: RESPONDING 0.075321 388 oliver.unidata.ucar.edu The RESPONDING line indicates that the upstream LDM has responded to the ldmping. What is the result of: notifyme -vl- -h fred.ssec.wisc.edu If this invocation "hangs", it is likely that Michael's LDM is not able to contact the LDM on fred.ssec.wisc.edu. We see two different reasons for this: - the firewall on fred.ssec.wisc.edu is blocking the port 388 connection attempt from Michael's machine - a firewall at or near Michael's machine is blocking outbound port 388 connection attempts Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: UWP-301248 Department: Support LDM Priority: Normal Status: Closed