SQLNet for Linux cannot connect at Oracle7 instance

I have installed Oracle Client and SQLNet 8 on my Linux Red Hat 6.1

                            Red Hat Linux release 6.1 (Cartman)
                            Kernel 2.2.12-20 on an i586

but I can connect only at Oracle8 Server while if I try to connect at Oracle7 I obtain the ORA-12545 error. Note that tnsping respond well:

@smc-test.adr.it:/oracle->> tnsping chsa

TNS Ping Utility for Linux: Version 8.0.5.0.0 - Production on 03-DEC-99 11:59:29

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

Attempting to contact
(ADDRESS=(PROTOCOL=TCP)(Host=10.10.1.4)(Port=1521)) OK (100 msec)
@smc-test.adr.it:/oracle->>
@smc-test.adr.it:/oracle->> sqlplus ced/weah_at_chsa

SQL*Plus: Release 8.0.5.0.0 - Production on Fri Dec 3 12:0:7 1999

(c) Copyright 1998 Oracle Corporation. All rights reserved.

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

the user and password are correct.
What's mean it ?
Kekko Received on Fri Dec 03 1999 - 07:54:50 CST