[FATAL] [DBT-06103] The port (5,500) is already in use. ACTION: Specify a free port, Oracle 19c

While installing the Oracle Database Software, we have find this Fatal Error:

Error:

[FATAL] [DBT-06103] The port (5,500) is already in use.
ACTION: Specify a free port.

Solution:

Edit the /etc/hosts

# IP_ADDRESS      HOSTNAME_WITH_DOMAIN      HOSTNAME
172.16.1.82    ol8u2.wadhahdaouehi.tn  ol8u2

Enjoy !