Error connecting to Oracle database on VM ORA-12560?

Question

Oracle

can't solve problem ORA-12560: TNS:protocol adapter error
Base installed on VM linux / Client on Win10.

• Ping from client IP VM
  
• In odbc data source administrator - test connection succeeded.
  
• PL/SQL and Excel - are connected to basis.
  

And in SQL*Plus - after entering credentials - ORA-12560: TNS:protocol adapter error.
Similar error when connecting in RStudio.

Server

listner.ora

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.32.106)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

tnsnames.ora

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.32.106)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

LISTENER_XE =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.32.106)(PORT = 1521))

Customer

tnsnames.ora

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.32.106)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

Answer 1

Understood.
When entering a password, you need to specify sid through '@'.
Example.
Name: user (which is specified in dns)
Pass: [email protected]