invoking sqlplus giving error

From: Jagjeet Singh <jagjeet.malhi_at_gmail.com>
Date: 27 Jan 2007 22:54:25 -0800
Message-ID: <1169967265.427808.278880@l53g2000cwa.googlegroups.com>

Hi

Can anybody please look into this. I have installed oracle 920 on Redhat ES 3.
 But while invoking sqlplus I am getting this error.

##########################################

[ora9_at_vicky admin]$ uname -a

Linux vicky.oracle.com 2.4.21-4.EL #1 Fri Oct 3 18:13:58 EDT 2003 i686 i686 i386 GNU/Linux
[ora9_at_vicky admin]$
[ora9_at_vicky admin]$ set | grep ORACLE

ORACLE_BASE=/ora9/app/oracle/product
ORACLE_HOME=/ora9/app/oracle/product/9.2.0
ORACLE_SID=db1

[ora9_at_vicky admin]$ sqlplus

SQL*Plus: Release 9.2.0.4.0 - Production on Sun Jan 28 12:23:41 2007

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Enter user-name: / as sysdba
ERROR:
ORA-12545: Connect failed because target host or object does not exist

##########################################

Regards,
Jagjeet Singh Received on Sun Jan 28 2007 - 00:54:25 CST