OK. And, please, no fear. Oracle will come for us. Oracle will save us.
Oracle eats our brains since 8i.

$ tnsping orcl
Attempting to contact (DESCRIPTION = 
	(ADDRESS = (PROTOCOL = TCP)
		(HOST = minerva.ptc.ru)(PORT = 1521)
	) 
	(CONNECT_DATA = (SERVER = DEDICATED) 
		(SERVICE_NAME = orcl)
	)
)
OK (0 msec)