ORA-12638 Error

While reinstalling my oracle 8.1.6 enterprise edition server on win2000, i'm getting the above error (ORA-12638: Credential Retrieval Failed).
I'm getting same error in my another existing database also while connecting to it.
Can anyone please help me to troble shoot this?
Thanks in advance.

Comment the
#SQLNET.AUTHENTICATION_SERVICES= (NTS)
in the sqlnet.ora file located at
$home/ora81/network/admin/sqlnet.ora on the server side.
Hope this will solve ur problem.
Abha.

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ORA-00205 Error

i have installed Oracle 8.1.5 Server on Windows 2000 Server, the installation goes well, i have created Database ORCL, now when i connect it it gives ORA-12638 Error however i am able to solve it by modifiying the sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES= (NONE)
but now again i am getting error when i go to SVRMGRL and start the Database with STATUP option it gives error
ORA-00205.
now when i see the Control files there is no Control file over there as mentioned in INIT.ORA file.
Pl. tell where is the Problem

It seems that the controlfiles are missing from the location.
See, if they are are moved or renamed by mistake. If so, then, move them to the exact location, mentioned in init.ora file.
If not, you can always create a new controlfile, refer oracle docs on how to create a new controlfile.
Jaffar

Error ora-12638 when connect

when i try yo connect to oracle8I with(sql plus, oem: dba studio)using system ( sysdba, sysoper, normal) i got the error messge ora-12638 impossible to extract the preferences of users, can anyone help me please( it's a production database)
thanks

Which OS are you using? are you using the base version 8.1.6? Try upgrading to 8.1.6.3.1 on both the server and clients. or try setting
sqlnet.authentication_services=(none)
in your sqlnet.ora file.

Error ORA-12638

I have installed Oracle 9.2 on W2000 Server. I have created an asp web page by dreamweaver accessing Oracle hr sample. When I use the 'using DSN on testing server' to connect to Oracle, it gives me the error ORA-12638. I have set the security for IUSR and IWAM on the Oracle folder. Also I am using ODBC driver from Oracle. Please help!!

HTTP 500.100 - 內部伺服器錯誤 - ASP 錯誤
Internet Information Services
技術資訊 (供技術支援人員使用)
錯誤類型：
Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Oracle][ODBC][Ora]ORA-12638: 證明資料擷取失敗
/master.asp, line 5
瀏覽器類型：
Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
頁數：
GET /master.asp
時間：
2003年5月28日, 下午 04:07:13
** The error message in English is [fail to retrieve identification information]
When I create the dsn in Windows, I can test the connection with no problems. In dreamweaver there are 2 options : 1) use local DSN 2)use DSN on testing server. When I use local DSN, it was fine. Since my machine is the web server, I have to choose option 2).
As I mentioned before, I have set the security options of the Oracle folder accessible to Iusr, Iwam and authenticated users.

Kerberos Authentication between Sharepoint 2013 Foundation - SSRS 2012 - Oracle 11g failing with ORA-12638: Credential retrieval failed

I have set up SharePoint 2013 Foundation, SharePoint Reporting Services and SQL Server 2012 in a single server. I then created a Data Connection to Oracle 11g. Upon testing the connection, it throws the error “ORA-12638: Credential retrieval failed”.
Given below are the steps of installation and configuration.
Installation till basic authentication:
The installation has been done in a
single server.
Installed SQL Server 2012 (Developer version).
Selected only the following features:
Database Engine Services
Analysis Services
Reporting Services – SharePoint
Reporting Services Add-in for SharePoint Products
Management Tools – Basic
- Management Tools - Complete
2. Installed SQL Server 2012 SP1.
3. Installed SQL Server 2012 SP2.
  4. Installed SharePoint Foundation 2013.
5. Created web application (without Kerberos; we did not even create the SPNs).
      The application pool has been configured to use Reporting Services account since it is a single server installation. This account has been registered as a managed
account.
6. Created Site Collection.
7. Verified that Reporting Services is not installed.
8. Installed SharePoint Reporting Services from SharePoint 2013 Management Shell.
9. Verified that Reporting Services is installed.
10. Created a new SQL Server Reporting Services Service Application and associated the Web Application to the new SQL server Reporting Services Service Application.
11. Verified that SQL Server Reporting Services Service Application and its proxy have started. Reset IIS.
12. Created a Site.
  13. Created a Data Connection library with “Report Data Source” content type.
14. Created a Report Model library with “Report Builder Model” content type.
15. Created a Report library with “Report Builder Report” content type.
16. Uploaded an SMDL to the Report Model library.
  17. Added the top level site to Local Intranet instead of as a Trusted Site in the browser settings.
  18. Able to create and save a report using Report Builder.
Hence, basic authentication is working and SSRS is able to connect to Oracle database.
Next we have to configure Kerberos settings between SharePoint and SQL Server.
Implementation of Kerberos authentication
In the Report Server machine, opened the file C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\WebServices\Reporting\rsreportserver.config and added the Authentication Types of RSWindowsNegotiate
and RSWindowsKerberos.
2. Set up the following SPNs.
               a) SQL Server Database Engine service (sqlDbSrv2):
                setspn -S MSSQLSvc/CER1110:1433 CERDEMO\sqlDbSrv2
                setspn -S MSSQLSvc/CER1110.cer.demo.com:1433 CERDEMO\sqlDbSrv2
             In the Delegation tab of the account, selected "Trust this user for delegation to any service (Kerberos only)".
b) Account: SharePoint Setup Admin account (spAdmin2)
     setspn -S HTTP/CER1110:9999 CERDEMO\spAdmin2
                setspn -S HTTP/CER1110.cer.demo.com:9999 CERDEMO\spAdmin2
                In the Delegation tab of the account, selected "Trust this user for delegation to any  service
(Kerberos only)".
c) Account: SQL Server Reporting Service account (sqlRepSrv2)
                   setspn -S HTTP/CER1110 CERDEMO\sqlRepSrv2
                   setspn -S HTTP/CER1110.cer.demo.com CERDEMO\sqlRepSrv2
                   In the Delegation tab of the account, selected "Trust this user for delegation to any service
(Kerberos only)".
3. Configure the Web Application to use “Negotiate (Kerberos)”.
4. Logged in as SharePoint Administrator to the SharePoint server and opened the top level site in the IE browser.
     The Event Viewer logged the login process for the SharePoint Administration account as
Negotiate and not Kerberos.
5. Implemented Kerberos for Oracle database and client.
     Able to connect to the Oracle database via Kerberos authentication using SQL Plus.
6. Turn on Windows Firewall.
7. While testing the site's data connection using Kerberos settings, got the error
“Can not convert claims identity to windows token. This may be due to user not logging in using windows credentials.”
      Note: The Data Connection for basic authentication still worked.
8. Created a Claims to Windows Token Service account (spC2WTS2).
9. Started the Claims to Windows Token Service.
10. Registered the Claims to Windows Token Service account as a Managed Account.
11. Changed the Claims To Windows Token Service to use the above managed account.
12. Verified that the Claims to Windows Token Service account (spC2WTS2) is automatically added to the WSS_WPG local group on the SharePoint box.
      Note: The Reporting Services service account is also a part of the WSS_WPG local group.
13. Added the Claims to Windows Token Service account (spC2WTS2) to the Local Admin Group on the machine having the SharePoint App Server.
14. In the SharePoint box, added the Claims to Windows Token Service account (spC2WTS2) in the Act as part of the operating system policy right.
15. The Claims to Windows Token Service account (spC2WTS2) has the WSS_WPG group configured.
      When the C2WTS service was configured to use the managed account Claims to Windows Token Service account (spC2WTS2) earlier, the spC2WTS2 account was automatically
added to the WSS_WPG local group on the SharePoint box. The WSS_WPG group in turn is configured in c2wtshost.exe.config file.
16. Verified that the Reporting Services account is a managed account and part of the WSS_WPG group.
17. Earlier Service Application Pool - SQL Server Reporting Services App Pool service was associated with the SharePoint Admin account.
      Changed this to associate the Reporting Service account with the Service Application Pool - SQL Server Reporting Services App Pool service.
18. Changed the delegation of the Reporting Service account to constrained delegation with Protocol Transitioning. This is because we are transitioning from one authentication scheme (Claims) to another (Windows Token).
      For this, the delegation has been changed to "Trust this user for delegation to specified services only". Also, selected the sub radio button "Use
any authentication protocol". Selected the Oracle Kerberos service as the service to which this account can present delegated credentials.
      Note: The Reporting Service account already had an HTTP SPN.
19. Next, the goal was to make the Claims To Windows Token Service account match the Reporting Service account.
       For this, we created a fake SPN for the Claims To Windows Token Service account since the delegation tab was missing.
       The delegation has been changed to "Trust this user for delegation to specified services only". Also, selected the sub radio button "Use any
authentication protocol". Selected the Oracle Kerberos service as the service to which this account can present delegated credentials.
20. Restarted the SharePoint server.
21. Tested the data connection with the Kerberos settings again.
       Got the error
“ORA-12638: Credential retrieval failed”.
Can anyone tell me what is wrong with this setup?

http://www.freeoraclehelp.com/2011/10/kerberos-authentication-for-oracle.html
Problem4: ORA-12638: Credential retrieval failed
Solution: Make sure that SQLNET.KERBEROS5_CC_NAME is set in sqlnet.ora and okinit has been run before attempting to connect to the database.
Do check
http://webcache.googleusercontent.com/search?q=cache:5a2Pf3FH7vkJ:externaltable.blogspot.com/2012/06/kerberos-authentication-and-proxy-users.html+&cd=5&hl=en&ct=clnk&gl=in
If this helped you resolve your issue, please mark it Answered. You can reach me through http://itfreesupport.com/

ORA-12638 CREDENTIAL RETRIEVAL FAILED

Yesterday when I started my server after holiday it gives error ORA-12638 Credential Retrieval Failed,
Can anyone help. I have taken export backup of my schema before holiday. I can load that but I need advice what should I do to recover. To me its login connectivity problem.

check the file sqlnet.ora where the database is installed for an entry like SQLNET.AUTHENTICATION_SERVICES= (NTS). If so, disable it.

Cannot connect to 10g instance from 11g client (ORA-12638)

Hi,
I don't know why I have problems when I connect from a 11g client to a 10g server. I get the error ORA-12638.
However, it works fine doing the same with a 10g client.
Can anybody tell me how to avoid this problem without having to install the 10g client ?
Thanks in advance.
Regards.

Hi, user7409638,
To understand the problem, I advice you to enable tracing and have a look at it.
As you may know, ORA-12638 is the problem with the authentication service.
It was just unable to get your credentials.
If you want me finally get the solution, please report it at my system http://1dayotn.blogspot.de/p/question-me_7.html
If you have any questions, ask.
Kirill Babeyev

RMAN-00554 with ORA-12638

Hi,
I'm receiving the following error when I try to start RMAN from a command prompt. I can connect to the database from the Enterprise Manager and from SQLPlus without any problems. I've read about removing the sqlnet.authentication_services line from sqlnet.ora, but I don't know if I should since the database connects fine outside of RMAN:
C:\>rman target sys/password@DB1
Recovery Manager: Release 10.2.0.1.0 - Production on Mon May 15 10:01:40 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00554: initialization of internal recovery manager package failed
RMAN-04005: error from target database:
ORA-12638: Credential retrieval failed
Thanks,
Nora

Hi,
In 'C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN', my files look like this (the line in sqlnet.ora is still present-- i haven't removed or changed it yet):
TNSNAMES.ORA
# Generated by Oracle configuration tools.
DB1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = host1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = db1)
SQLNET.ORA:
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES = (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
LISTENER.ORA:
# listener.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = DB1)
(ORACLE_HOME = C:\oracle\product\10.2.0\Db_1)
(GLOBAL_DBNAME = DB1)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = host1)(PORT = 1521))
I don't get ORA-01031 in RMAN with this configuration, but I do get ORA-12638.
Otherwise, I can connect fine to my database if I don't use 'connect / as sysdba'.
Thanks again,
Nora

Oradba.exe and ORA-12638

what is oradba.exe and what does it do?
it does not appear to be documented anywhere (on tahiti, it only shows up in an unrelated directory listing example.
i ran it with a healthy database, got errors about not being able to add a group and a user -- so I'm sure it's related to OS authentication and the ORA_DBA group
after running it (but not before) I was unable to connect to the database with any tools (other than the home page), getting ORA-12638 until i commented out SQLNET.AUTHENTICATION_SERVICES = (NTS) in sqlnet.ora

its the bit that creates the ORA_DBA group on windows

Warning: ocilogon(): _oci_open_server: ORA-12638

hi,
System: w2k Server on a VMware.
db Oracle 9.i
Webserver Apache
Tomcat
The php-Code is ok. I know it, because the code is running on a secend-computer. When I start my code i see this:
Warning: ocilogon(): ociopen_server: ORA-12638: Abruf des Berechtigungsnachweis misslungen in c:\inetpub-keytec\wwwroot\customers\demo\phpinc\cube\core\data\oracle.php on line 58
I have build me a littel code for testing the conection to the DB. and when i start this code i see the same error.
The user, pwd and the table is ok. i have tested it with the sql+ tool.
help what is rong??
and sorry for my bad english
cu
tom

A quick Google comes up with:
http://www.orafaq.com/forum/t/24615/0/
HTH!

Oracle9i - ORA-12638 Credential retrival failed

Hi,
I am new to Oracle database and my first job is to install oracle9i into Window 2000. The installation failed at Database Configuration Assistant with error: ORA-12638 Credential retrival failed. I tried to create different type of database to see if the problem goes away but it persists. Please help!

this is the solution i got from net
On the client computer, modify SQLNET.ORA located in ORACLEHOME/NETWORK/ADMIN directory. Replace the line
SQLNET.AUTHENTICATION_SERVICES=(NTS)
with
SQLNET.AUTHENTICATION_SERVICES=(NONE)
you can try out..

Ora-00604 error and ora 01000 error while report generation.

hi all,
I am trying to generate the multiple reports of same template through a program.
While this job is running, i get the following error at the BIP console and the reports don't get generated.
[101711_044115578][][EXCEPTION] java.sql.SQLException: ORA-00604: error occurred
at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-01000: maximum open cursors exceeded
Kindly help.
Thanks.

Lots of resources with a simple search to see what this is about, for example:
http://www.orafaq.com/wiki/ORA-01000
ORA-01000:     maximum open cursors exceeded
Cause:     A host language program attempted to open too many cursors. The initialization parameter OPEN_CURSORS determines the maximum number of cursors per user.
Action:     Modify the program to use fewer cursors. If this error occurs often, shut down Oracle, increase the value of OPEN_CURSORS, and then restart Oracle.
open_cursors parameter
http://download.oracle.com/docs/cd/E11882_01/server.112/e25513/initparams160.htm#REFRN10137
Oracle support note:
OERR: ORA-1000 maximum open cursors exceeded (Doc ID 18591.1)

Ora-00604,ora-01422 error while dropping the table

Hi gurus,
I am using Oracle 10g R2 on windows 2000 platform,while dropping the table the following error occured.
ORA-00604 : error occurred at recursive sql level 1.
ORA-01422: exact fetch returns more than requested number of rows.
Need urgent help.
Thanks in advance

Is there an AFTER EVENT trigger defined on this database? Can you check that?
Secondly, was this database migrated from earlier version? I remember having seen this problem on 9i (it was 9.2.0.1 or 9.2.0.2; I can't recall exactly).

Ora 600 error Arguments [25012] [11]

hi,
i've an ORA-00600: error Arguments [25012], [2], [11], [], [], [], [], [] by DELETE FROM table WHERE filed = :b1
ther are only 8 file in database. (not 11)
Can anybody help, or give me an information about Bug number: 742709
OS NT 4 / SP6 ORACLE RDBMS Version: 8.0.5.2.1.
Thank in advice
JFA

Trace File Contents:
============================================================================================
[oracle@oem trace]$ more /d01/app/guest/diag/rdbms/db11g/db11g/incident/incdir_191809/db11g_smon_4198_i191809.trc
Dump file /d01/app/guest/diag/rdbms/db11g/db11g/incident/incdir_191809/db11g_smon_4198_i191809.trc
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /d01/app/guest/product/11.2.0/dbhome_1
System name: Linux
Node name: oem.tap.com
Release: 2.6.18-164.el5xen
Version: #1 SMP Thu Sep 3 02:41:56 EDT 2009
Machine: i686
Instance name: db11g
Redo thread mounted by this instance: 1
Oracle process number: 13
Unix process pid: 4198, image: [email protected] (SMON)
*** 2010-10-15 12:05:24.395
*** SESSION ID:(16.1) 2010-10-15 12:05:24.395
*** CLIENT ID:() 2010-10-15 12:05:24.395
*** SERVICE NAME:(SYS$BACKGROUND) 2010-10-15 12:05:24.395
*** MODULE NAME:() 2010-10-15 12:05:24.395
*** ACTION NAME:() 2010-10-15 12:05:24.395
Dump continued from file: /d01/app/guest/diag/rdbms/db11g/db11g/trace/db11g_smon_4198.trc
ORA-00600: internal error code, arguments: [13013], [5001], [267], [8444108], [2], [8444108], [17], [], [], [], [], []
========= Dump for incident 191809 (ORA 600 [13013]) ========
*** 2010-10-15 12:05:24.399
dbkedDefDump(): Starting incident default dumps (flags=0x2, level=3, mask=0x0)
----- Current SQL Statement for this session (sql_id=dma0vxbwh325p) -----
update smon_scn_time set time_mp=:1, time_dp=:2, scn=:3, scn_wrp=:4, scn_bas=:5, num_mappings=:6, tim_scn_map=:7 where scn = (sele
ct min(scn) from smon_scn_time)
==========================================================================================

Ora-01008 error with bind variable

Hi,
We have a test program which have one bind variable on a column which is varchar2(20), in the test program we've passed a 20 character string to the variable. The program returns error in one of the databases but all others are successful. We've checked the column is same in all of them.
Exception in thread "main" java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01008: not all variables bound
Could you please advise how to troubleshoot this issue?
Regards

We aren't going to be able to help you if you won't post the database code that is giving the error.
And now we need the Java code that is constructing the query that you are using.
Your error is saying there is a second variable that you are not providing a value for.
And you said
>
We have a test program which have one bind variable on a column which is varchar2(20), in the test program we've passed a 20 character string to the variable.
>
But you are using a string that is 23 characters long
"a3g34-b13fd-efaie-f83fk"How does 23 go into 20?

ORA-12638 Error

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