RADIUS authentification

Posted on 2009-07-15
Last Modified: 2013-12-19

I'm trying to setup RADIUS authentification with Oracle 10g R2. Unfortunately, when i try to connect, i get this message:

ORA-12641: Authentication service failed to initialize

I also tried to follow this documentation:

But there is no "Oracle Advanced Security" in the choice list. Is it because it's not installed? Is there a way to install it on top of my current installation?

Question by:bomek
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
LVL 48

Accepted Solution

schwertner earned 500 total points
ID: 24858382
Look in the file $ORACLE_HOME/network/tools/NetProperties the line
contained the parameter INSTALLEDCOMPONENTS
(often it is is commented using # ).
Modify it like:


and restart netmgr

Author Comment

ID: 24866873
Thanks, it did the trick. I'm now able to configure RADIUS through netmgr. But still, when i try to login with sqlplus, i get this error: ORA-12641: Authentication service failed to initialize.
LVL 48

Expert Comment

ID: 24866947
Is it fresh installation of Oracle 10g?
What says

lsnrctl status
lsnrctl services
SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.


Author Comment

ID: 24867184
My radius.key was wrong.. After i fixed it, i got Oracle communicate with my radius server.

In my init.ora, i got those two options:

I created a user identified externally to which i granted connect role. When i'm connecting with this user, i get a logon denied from oracle and in the RADIUS log it says invalid password (i'm using the good password of course...).

My RADIUS server works fine with others services and the user i'm trying too.

And no, it's not a fresh Oracle 10g install. Our Oracle installation is on windows, how do i get the same result as "lsnrctl status"?

LVL 48

Expert Comment

ID: 24867375
Good news!

Author Comment

ID: 24867386
Well, no, since i'm still not able to login..

I don't know why, but Oracle is not sending the password i typed to the RADIUS server.
LVL 48

Expert Comment

ID: 24868282
Check for firewall.
Check for host name. port, protocol.

Author Comment

ID: 24868463
As i said, Oracle is able to communicate with the server (since i see the requests in the radius logs). The problem, password is always invalid. I've tried different users with very simple, normal and complicated passwords but none go through.

The radius server works perfectly with other services and with radius test tool (NTRadPing). Oracle is obviously doing something with the password i enter before it send it to the radius server.

Author Comment

ID: 24868692
I finally found the response, the secret was too long for oracle. I shorten it to 16 characters and it works.

Featured Post

[Webinar] How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to Create User-Defined Aggregates in Oracle Before we begin creating these things, what are user-defined aggregates?  They are a feature introduced in Oracle 9i that allows a developer to create his or her own functions like "SUM", "AVG", and…
When it comes to protecting Oracle Database servers and systems, there are a ton of myths out there. Here are the most common.
This video shows information on the Oracle Data Dictionary, starting with the Oracle documentation, explaining the different types of Data Dictionary views available by group and permissions as well as giving examples on how to retrieve data from th…
This video shows how to Export data from an Oracle database using the Datapump Export Utility.  The corresponding Datapump Import utility is also discussed and demonstrated.

691 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question