I can't connect Oracle 7.3.2.1.0 by sqlplus anymore!

Hi!
I have an Oracle 7.3.2 for Irix installed before.
When I install Oracle 8.0.5 for Linux without Pro*C,
I can connect Oracle 7.3.2 by "sqlplus scott/tiger@remote".
But if I include Pro*C installed, I can't connect Oracle
7.3.2 by the same command anymore.
What should I do to solve this problem?
I can compile Pro*C program but get the same response :
ORA-01017: invalid username/password; logon denied
password is right for sure, server just doesn't accept.
null

My problem is a little different from your. I have both
Oracle 7.3.2 and 8.0.4 on our Sun workstation. I can connect
to Oracle 8.0.4 using both sqlplus and embeded SQL. However,
I could not connect to Oracle 7.3.2 by sqlplus or embeded SQL.
Error Message: ORA-12545: Connect failed because target host
or object does not exist
It's is a bug or it's not support to connect to old Oracle
Version??? If anyone have a solution please let me know.
Larry Gump (guest) wrote:
: Hi!
: I have an Oracle 7.3.2 for Irix installed before.
: When I install Oracle 8.0.5 for Linux without Pro*C,
: I can connect Oracle 7.3.2 by "sqlplus scott/tiger@remote".
: But if I include Pro*C installed, I can't connect Oracle
: 7.3.2 by the same command anymore.
: What should I do to solve this problem?
: I can compile Pro*C program but get the same response :
: ORA-01017: invalid username/password; logon denied
: password is right for sure, server just doesn't accept.
null

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CLASSPATH=/u01/app/oracle/product/10.2.0/db_1/JRE:/u01/app/oracle/product/10.2.0/db_1/jlib:/u01/app/oracle/product/10.2.0/db_1/rdbms/jlib
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KDEDIR=/usr
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Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))
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Alias LISTENER
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(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))
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Service "orcl" has 2 instance(s).
Instance "ORCL", status UNKNOWN, has 1 handler(s) for this service...
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orcl_XPT" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
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LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-JUL-2010 16:00:19
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))
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Uptime 0 days 2 hr. 31 min. 54 sec
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(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))
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Instance "ORCL", status UNKNOWN, has 1 handler(s) for this service...
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orcl_XPT" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
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LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-JUL-2010 16:03:25
Copyright (c) 1991, 2005, Oracle. All rights reserved.
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Instance "orcl", status READY, has 1 handler(s) for this service...
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SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 9 16:03:38 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
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PL/SQL Release 10.2.0.1.0 - Production
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