Hi everyone,
I am installing Oracle 12c (linuxamd64_12102_database_1of2.zip y linuxamd64_12102_database_2of2.zip) using silence mode in a Linux machine (CentOS Linux release 7.3.1611 (Core)), but even I could install Oracle when I try to run SQLPLUS, I do not get connection. I will attach all the screenshots.
1.- Linux version
[oracle@localhost root]$ cat /etc/centos-release
CentOS Linux release 7.3.1611 (Core)

2.- Installation command (done without problems)
/jdadev/installers/database/runInstaller -silent -responseFile /jdadev/installers/database/response/db_install.rsp
3.- Creation of environmental variable (done without problems)

4.- Creation of tnsnames.ora , listener.ora and sqlnet.ora



5.- start listener ( The listener supports no services)

6.- try to use SQLPLUS (it is not possible to get connection)

Please, someone have had this problem?
Thanks in advance