Oracle Single Sign-On Server for Apps DBA

Today lets discover Single Sign-On (SSO) like why its used , advantages of using it , what all different type of applications can use SSO including technical details of SSO .

What is Single Sign-On Server (SSO) ?
As name says Single-Sign On Server is set of services (Software) which enables login to Application once which will allow you to login to Ppartner Applications with no need to login again. Lets assume I have configured single SSO Server for Portal , E-Business Suite, Collaboration Suite plus some other other applications, Now if I login to any one of them & after that if I wish to login to other applications I should be able to login without supplying passwords again.

How will I log off then ?
This is called as Single Sign-Off which is part of SSO server , If you logout from any one application SSO server will log off from all applications.

What are Technology Stack components of SSO Server ?
SSO consist of OC4J_Security & HTTP Server which are part of Oracle Identity Management which inturn part of Oracle Infrastructure Server which in turn part of Oracle Application Server. SSO server uses Oracle Internet Directory to store User Credentials in encrypted format for Partner Applications . If some one ask you to bounce SSO server , you bounce either of them or both . Oracle components uses mod_osso which is part of Oracle HTTP Server to connect to SSO server.

Partner Application & External Applications ?
As mentioned above lot of time about Partner Applications ; Partner Applications are the one which delegates their authentication to SSO server (like Portal, Discoverer, E-Business Suite, Collaboration Suite) where as External Applications are applications which don’t delegate their authentication to SSO Server (like yahoo, google, hotmail applications).
What does delegating Authentication means here ? Delegating authentication means partner application will ask sso to verify if a user is authenticated properly or not where as external application will check username/password at their end sso server will simply hold username/password in OID (If users select remember external application password)

Request Flow when SSO is used …
Very important to understand request flow when a application is configured with SSO & user tries to access Application .
1) User first time tries to access application (like portal, collabsuite, apps 11i) configured with sso server
2) Application checks that there is no login cookie set into User(Clients) browser so Application redirects it to Single Sign-On Server via mod_osso
3) Single Sign-On Server returns login page to user & user enter his/her username/password
4) SSO validates these password against one stored in Oracle Internet Directory
5) If password matches then SSO return a token to client with list of all applications which user has access and return client back to original application
6) This token is stored as part of cookie in user’s/client’s browser & further connections from client to applications will be allowed (as authentication token is already in cookie)

Do you know how to access Single Sign-On server from browser or what is SSO URL ?
Lot more on OID & Identity Management including IM Cluster coming soon …

About the Author Atul Kumar

Oracle ACE, Author, Speaker and Founder of K21 Technologies & K21 Academy : Oracle Gold Partner specialising in Design, Implement, and Trainings.

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Leave a Comment:

Pravesh says November 28, 2006

Hi Atul. Nice to read this brief document on SSO. Can you provide me any metalink DOC ID or any other pointer where i could see more basic to implementation level information.


Atul Kumar says November 28, 2006

Hi Pravesh,
Thanks a lot. You need implementation of SSO which 10g Application Server or E-Business Suite or any other oracle product ?

Atul Kumar

Aljafree says December 9, 2006

Hi Atul,
Can you guide me in seting up PKI on oracle 10g (part of sso) as I am unable to edit the httpd.conf as the file format was not .crl but.crt, maybe a step by step


Atul Kumar says December 9, 2006

If you want to configure SSL then use OWM Oracle wallet manager & in ssl.conf use directive

SSLWallet file {locationOfWallet}

If this is for OCA , Oracle Certifying Authority this is compltere separate component on Application Server


agostino_neto says December 12, 2006

Hi Atul,
Can we avoid using SSO and let application automatically recognize user id we type when starting our computer ?

Atul Kumar says December 12, 2006

Yes you can do by implementing windows Native Authentication via kerbros . This is mentioned in SSO Administration Guide.


agostino_neto says December 13, 2006

Hi Atul,
Can you tell me where I can find SSO Administration Guide ?
I didn’t find it on OTN with other books.

agostino_neto says December 15, 2006

Hi Atul,
Thanks, I’ve seen this document but is there a pdf document?
It will be easier to find string (like Kerberos for example).
Are you heart that someone has successfully implemented windows Native Authentication via Kerberos so that anyone can connect to eBusiness Suite without entering user name or user password?

Atul Kumar says December 15, 2006

To be frank I have not seen anyone implemented windows native authentication or better to say zero sign on on E-Business suite login but you can try on Test Server

Priya says January 16, 2007

Hi Atul,

i am Priya working as Apps DBA.I have implemented Windows native authentication with oracle where you can lgoin directly to applicationw ithout username/password.

Atul Kumar says January 16, 2007

Hi Priya,
Thats a good thing. Cheers … Is this for 10g Application server only or also intergrated this with E-Business suite ?

sanchit says January 19, 2007

Hi Pervesh,

Some Info Integrating Oracle E-Business Suite Release 11i with Oracle Internet Directory and Oracle Single Sign-On can be had from Note:261914.1

RD says February 20, 2007

Hi Atul,

Can you give me some guide lines on Implementing SSO with other “Applications like Mail, 3rd party appl, WNA etc”


Atul Kumar says February 20, 2007

Each application has its own sso mechanism another check is if that application support SSO or not . Most of Oracle application use mod_osso for sso access. Kindly check each application’s document for configuring it with SSO Server

Hank says April 20, 2007

Hi, Atul,

What is I have different passwords in in different applications (supposed I have the same user name for all apps), will SSO validates all these passwords?



Atul Kumar says April 21, 2007

If various applications share same SSO instance then they will have same password (Though different username can be mapped to single account in various applications )

Anonymous says May 24, 2007

Hi Atul,

Can we integrate a single Oracle 10gAS for SSO with peoplesoft,JD Edwards and E-business suite? If yes, can you suggest me any doc. or white paper on this topic and how to implement the same?

Atul Kumar says May 24, 2007

For Integrating 10g AS SSO with E-Business Suite check

233436.1 Installing Oracle Application Server 10g with Oracle E-Business Suite Release 11i (11i with SSO build 4)

For integration with peoplesoft and Siebel I’ll cover in near fture here

Vinkal says July 11, 2007

Hi Atul,

A very good brief doc on SSO.It helped me to understand the basics.
Can u help me for how to login to portal which is SSO enabled. When i try to login it asks me for SSO login/pwd. what should i enter. I am using 10gAS(9.0.4) with OID running on separate host(infra server). I tried with username=orcladmin and password=deafult passwd(manager1) but it is givin error as “Your password has expired. Please contact administrator to reset it”

Anonymous says August 2, 2007

Hi Atul,
I want SSO put in login the last username entered, how can do this?

c.raja says August 11, 2007

hi can u guide me how to install SSO SDK iam not clear in that part

Poornima says August 11, 2007

Hi Atul,

I have Installed 10g Application server 10.1.2 and SOA. Now my user wants me to use SSO Fot Authentication all the components of SOA. Any Suggestions on How to Integrate them I am Quite new to this and your suggestion would be most helpful.


Poornima says August 11, 2007

Can you point me to IOD user management Doc.


Atul Kumar says August 11, 2007

Check OIDDAS for OID user management .

Atul Kumar says August 12, 2007

For installing SSOSDK check metalink Note

182701.1 Install and Configure SSO SDK and Servlet Partner Application

Rama says August 13, 2007

Hello Atul,
We have 9i AS and, and we are planning to implement SSO. Is that possible to do “SSO” on 9iAS? If so, how can we do that?
I read somewhere that, for “SSO”, minimum requirement is 10g AS.
Thanks in Adv,

Massimo says August 14, 2007


Two questions:
1) o you usually install SSO on a separate host or on the same host as the middle tier?
2) In the second case, if you use SSL, you’ll need to have separate ports for SSO and middle tier web servers. Correct?



Atul Kumar says August 15, 2007

Default installation of sso is with OID (infrastructure tier)

but for security point of view I would prefer SSO on middle tier.

2) In the second case, if you use SSL, you’ll need to have separate ports for SSO and middle tier web servers. Correct?

Yes, thats right.

Poornima says August 16, 2007


I am using 10.1.2 as my 10g AS. So does this doc hold good for it ???


Atul Kumar says August 16, 2007

Yes Poornima

Syed says July 21, 2008

Dear Atual,

I integrate & configure SSO with R12 and its working.
1) When i use R12 url it re-directing to sso page. On SSo page i supply orcladmin/oracle123 then i directly login to R12 user A/C (aman) . i even not supply any userid/passwd for user aman.
when ever i use R12 URL it directing to sso,
when i login orcladmin it directly login to aman a/c. I cant use other R12 user’s

oidprovtool operation=MODIFY \ \
ldap_port=389 \
ldap_user_dn=cn=orcladmin \
ldap_user_password=oracle123 \
dc=india,dc=com” \
> orclLastAppliedChangeNumber=15731

bulkload -connect orcl -load=true file=/export/home/
All pre-Req & Post Req Sucessfull.

How to find R12 users in OID

Atul says July 21, 2008

$ORACLE_HOME/ldap/bin/ldifwrite connect=”” basedn=”cn=users,dc=” ldiffile=”$HOME/users.ldif”

So assume tns alias to connect to your OID DB is orcl and your default realm is (also called as namespace This you provide during OID installation) then to list all users in OID use

$ORACLE_HOME/ldap/bin/ldifwrite connect=”orcl” basedn=”cn=users,dc=oracle,dc=com” ldiffile=”$HOME/users.ldif”

or as mentioned in your other comment, use oiddas screen

Дайна says May 22, 2009

Друган дал ссылку, я обычно подобное не читаю, но не пожалел!

eduardo says June 3, 2009

Hi Atul.

I am using E Business Suite R12 on demand and OBIEE locally installed is it posible to configure SSO under this scheme?

I have read some notes and it says that it is a prerequsite to have both applications under the same domain.

How can I get SSO implemented

Atul Kumar says June 4, 2009


Only certified option for SSO integration with R12 is to use Oracle Identity Manegement – OID/SSO (10.1.4 and higher)

For OBIEE – There are various options available configure SSO

In my opinion install Oracle Identity Manegement 10.1.4.X (OID/SSO – OAS Infrastructure Part) and use that as SSO engine for both R12 and OBIEE (You need to install OBIEE as “advanced install” option with HTTP Server)

brsinha says June 3, 2010

Hi Sir,

Orcladmin passwoard expire,

How to change Orcladmin Password.

Thank you..


Mark says December 26, 2014

Hi Atul,

In our organization, we have installaed multiple Oracle Applications like OTM, UPK, EBS, Fusion HCM etc.., is it possible to have centralized SSO solution for all these products using OIM or OESSO???


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