this error arises when i try to connect to isqlplus and provide the connect identifer"orcl" a

ORA-12545: Connect failed because target host or object does not exist

and when i execute lsnrctl start it also gives me with the same error
TNS-00515: Connect failed because target host or object does not exist

please help
gazakom ALLAH kol 7'air

this error arises when i try to connect to isqlplus and provide the connect identifer"orcl" a
ORA-12545: Connect failed because target host or object does not exist

and when i execute lsnrctl start it also gives me with the same error
TNS-00515: Connect failed because target host or object does not exist

please help
gazakom ALLAH kol 7'air

Try issuing the following command at the C:> prompt
tnsping orcl
if you get a respond back
check the tnsnames and make sure that your host computer is identified correctly in the host name

tnsnames example

IDENTIFIER =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = userid.myhosteddb.net)(PORT = 1521))
)
(CONNECT_DATA = (SID = odb))
)

thx man

it works
the problem was about configuring lan card at LINUX
thx again