Privet, skajite mne pojaluysta chto za oshibka
Enter user-name: system
Enter password:
ERROR:
ORA-12547: TNS:lost contact..... Kak mne izbavitsya ot etogo oshibk?

sqlplus /nolog

SQL*Plus: Release 11.2.0.1.0 Production on Fri Apr 25 22:16:52 2014

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SQL> conn
Enter user-name: system
Enter password:
ERROR:
ORA-12547: TNS:lost contact


Jdu vashi otveti.......!