free.fr

PagePerso propose MySql and PostgreSQL but these have to be used from the free.fr server, cannot be accessed directly from the outside.

When using the db url jdbc:postgresql://sql.Free.fr/esicdtek:5432
it seems it is not using the server name at all

if you want to put a public machine on your personal freebox LAN, I recommend putting the public machine on your main subnet and using a new router to create a subnet with all the other machines. See
http://www.sangoma.com/support/tutorials/tcp_ip.html