Connect remotely to the H2 Database using h2.jar - corda

Question

I can't connect to my corda node h2 database remotely via the h2.jar user interface.
It says :
Connection is broken: "java.net.ConnectException: Connection refused: connect: my-host:8001" [90067-194] 90067/90067
On my VM the port is open :
netstat -tulpn | grep 8001
tcp 0 0 127.0.0.1:8001 0.0.0.0:* LISTEN 10098/java

Answer 1

As of Corda Enterprise 3.1, the node's H2 database is not exposed by default. This behaviour can be overridden by specifying the full network address (interface and port), using the new h2Settings syntax in the node configuration.
The configuration below will restrict the H2 service to run on localhost:
h2Settings {
address: "localhost:12345"
}
If you want H2 to auto-select a port (mimicking the old h2Port behaviour), you can use:
h2Settings {
address: "localhost:0"
}
If remote access is required, the address can be changed to 0.0.0.0. However it is recommended to change the default username and password before doing so.
h2Settings {
address: "0.0.0.0:12345"
}

Answer 2

solved also by adding a .h2.server.properties file in the home directory :
and launching the java -jar h2.jar on the VM.
1=H2|org.h2.Driver|jdbc\:h2\:tcp\://localhost\:8000/node|sa
webAllowOthers=true
webPort=8082
webSSL=false