Oracle Database Discussions

hi all,
ive been stuck up with this problem for far too long...without any solution. i would greatly appreciate any help.

WHEN I TRY TO PING:
C:\>ping blackdog

Pinging BlackDog [::1] with 32 bytes of data:

Reply from ::1: time<1ms
Reply from ::1: time<1ms
Reply from ::1: time<1ms
Reply from ::1: time<1ms

Ping statistics for ::1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

WHEN I TRY TO TNSPING
C:\>tnsping orax

TNS Ping Utility for 32-bit Windows: Version 9.2.0.1.0 - Production on 08-MAR-2004 00:17:35

Copyright (c) 1997 Oracle Corporation. All rights reserved.

Message 3511 not found; No message file for product=NETWORK, facility=TNSMessage 3512 not found; No message file for product=NETWORK, facility=TNSAtte
mpting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 128.164.136.88)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = orax)))
Message 3509 not found; No message file for product=NETWORK, facility=TNS

I am trying this on my local machine. orax is my service name. The HOST name is blackdog, having IP 128.164.136.88


TNSNAMES.ORA
# TNSNAMES.ORA Network Configuration File: C:\ORACLE\ORA92\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.

ORAX =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 128.164.136.88)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orax)
)
)

INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = BlackDog)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = MODOSE)
(PRESENTATION = http://HRService)
)
)


EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)

LISTENER.ORA
# LISTENER.ORA Network Configuration File: C:\ORACLE\ORA92\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 128.164.136.88)(PORT = 1521))
)

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\ORACLE\ORA92)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = orax.us.oracle.com)
(ORACLE_HOME = c:\oracle\ora92)
(SID_NAME = orax)

)
)

TRACE_LEVEL_LISTENER = ADMIN

SQLNET.ORA
# SQLNET.ORA Network Configuration File: C:\ORACLE\ORA92\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.

SQLNET.AUTHENTICATION_SERVICES= (NONE)

NAMES.DIRECTORY_PATH= (TNSNAMES)

Please let me know where am I going wrong !!!!