Installing Neo4j on Ubuntu

Hey everyone ,
I was working with neo4j on windows and now I am switching to ubuntu to work on the local server to be more efficient esepcially in term of time .
I followed this tutorial : neo4j [Wiki ubuntu-fr]
but when I am trying to open (http://localhost:7474) it doesn't work ! Shall I change the number of the port ? or any other detail to edit in neo4j.config ?

Here I found the solution : How to Install Neo4j with Docker in Ubuntu Studio 16.04 LTS - YouTube