I reinstalled the operating system and therefore it was necessary to transfer the docker container oracle 11g database. Made an export this way:
docker commit e198aac7112d export/server1:tag1 docker save export/server1 > export_server1.tar.gz
and then restored and launched it
docker load < export_server1.tar.gz sudo docker run e198aac7112d
and now I can’t join it, I enter a username and password and I get an error:
  IO Error: The Network Adapter could not establish the connection java.net.ConnectException: Connection refused.
What could be the problem?