Last week at my job we have upgraded MonetDB Server to last version (MonetDB 5 server v11.23.3 “Jun2016” / http://monetdb.org) , but after restart the service, it stoped to listen connections, just allowing local connections, after a long search over internet and differente solutions, no one is usefull, then after browse installed files, i found monetdbd, this monetdb tool is responsible to show/change initialization parameters for daemon, then change listenaddr parameters, with:
monetdbd set listenaddr=0.0.0.0 /disco/monetdb/dbfarm/ <— this is my dbfarm location
and after restart monetdb. i have been able to connect again using jdbc driver from a remote machine.