connect to oracle db computer in a LAN in asp.net -


im trying connect oracle 11g db on lan system in asp.net. im getting ora-12541: tns:no listener error.

i made following changes in files .....

sqlnet.ora

sqlnet.authentication_services= (beq, tcps, nts)  names.directory_path= (tnsnames, ezconnect)

tnsnames.ora

testdb =   (description =     (address_list =       (address = (protocol = tcp)(host = 192.168.1.50)(port = 1521))     )     (connect_data =       (server = dedicated)       (service_name = testdb)     )   )  listener_testdb =   (address = (protocol = tcp)(host = localhost)(port = 1521))

listener.ora

listener =   (description_list =     (description =       (address = (protocol = ipc)(key = extproc1521))     )     (description =       (address = (protocol = tcp)(host = 192.168.1.50)(port = 1521))     )   )

please let me know how can solve issue....

thanks...

did start listener? on server:

lsnrctl status: should tell if listener up

lsnrctl start: should start default listener, assuming there no passwords

edit:

since listener running, lsnrctl status command tell databases it's serving?

  • can connect database command line?
  • can run tnsping testdb , contact listener?
  • when try connect, on server, or different host?

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