# ORA-12546: TNS:permission denied

**URL:** <https://www.ruby-forum.com/t/ora-12546-tns-permission-denied/160599>\
**Category:** Ruby\
**Created:** [February 18, 2009, 2:05am UTC](https://www.ruby-forum.com/t/ora-12546-tns-permission-denied/160599 "2009-02-18T02:05:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kyung\_won\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/47e85d/32.png) [@Kyung\_won\_C](https://www.ruby-forum.com/u/Kyung_won_C)\
**Post date:** [February 18, 2009, 2:05am UTC](https://www.ruby-forum.com/t/ora-12546-tns-permission-denied/160599/1 "2009-02-18T02:05:16Z")

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OS: CentOs4.7  
Oracle: 9.2.0.4.0  
ruby: ruby 1.8.7

I’m trying install ruby & dbi & oci8

root have to connect sqlplus for oci8

oracle user connect sqlplus but root not

[root]# sqlplus user/pass

SQL\*Plus: Release 9.2.0.4.0 - Production on Wed Feb 18 10:03:22 2009

Copyright © 1982, 2002, Oracle Corporation. All rights reserved.

ERROR:  
ORA-12546: TNS:permission denied

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# Help Me!!

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**Author:** ![Kyung\_won\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/47e85d/32.png) [@Kyung\_won\_C](https://www.ruby-forum.com/u/Kyung_won_C)\
**Post date:** [February 18, 2009, 8:00am UTC](https://www.ruby-forum.com/t/ora-12546-tns-permission-denied/160599/2 "2009-02-18T08:00:31Z")

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On 18.02.2009 02:05, Kyung won Cheon wrote:

> [root]# sqlplus user/pass
> 
> SQL\*Plus: Release 9.2.0.4.0 - Production on Wed Feb 18 10:03:22 2009
> 
> Copyright © 1982, 2002, Oracle Corporation. All rights reserved.
> 
> ERROR:  
> ORA-12546: TNS:permission denied

First, this is totally off topic here. Second, you’re most likely not  
connecting to the DB you think you are. Third, root’s ORACLE\_HOME and  
ORACLE\_SID are probably differently set than those of user oracle. Btw,  
root is not intended to do regular work.

Cheers

robert