How To Change Weblogic Admin User's password

Often we have situation when we want to change the weblogic administrator's password. We give the default password while installation and later it becomes a problem to change it.

This is the situation which we faced in our development server.

Our server setup is such as, we have an Admin Server and three managed server(osb,bam,soa) on it.
It is a single node setup. Domain name is admin_domain

Follow the below steps to change the weblogic password:

1. Login to the Oracle 11g Adminintration Console with the weblogic username and password,
   Navigate to    Secuity Realms-->myRealms(realm name)-->Migration(tab)-->Export(tab)
   Here please provide a Directory location for “Export Directory on Server:” TextBox (Example: /tmp)
   
   Click on “Save” button…you will find that in the Directory which you have specified you will get :

   
   

   DefaultAuthenticator.dat

   DefaultCredentialMapper.dat

   exportIndex.dat

   XACMLAuthorizer.dat

   XACMLRoleMapper.dat
2. Now Shut Down all the servers which are running.
3. Take the backup of Domain Directory.
4. Navigate to the bin folder in the domain directory. i.e $Middleware_Home/user_projects/domain/admin_domain/bin
5. Execute setDomainEnv.sh file in the command prompt. Make sure weblogic.jar is present in ClassPath.
6. Navigate to  $Middleware_Home/user_projects/domain/admin_domain/security.
7. Just for the safety take the backup of DefaultAuthenticatorInit.ldift file, because in the next step we are going to create new file "DefaultAuthenticatorInit.ldift"
   mv  DefaultAuthenticatorInit.ldift  DefaultAuthenticatorInit.ldift.bkup
8. In the same directory give the following command :
   java weblogic.security.utils.AdminAccount newAdminUser newAdminPassword .           
   (make sure to give the '.' at the end)
   Here, newAdminUser -->the new user you want instead of weblogic
   newAdminPassword-->the new Password which is required to authenticate the Admin user
9. Navigate to the  following path $Middleware_Home/user_projects/domain/admin_domain/servers/AdminServer/security. Here update the boot.properties file with the new username and password.
10. Repeat step 9 for all the managed servers.
11. Take the backup of the following directory  $Middleware_Home/user_projects/domain/admin_domain/servers/AdminServer/data/
    mv data data_bkup
12. Time to Start the Admin Server.As we have already made an entry in the boot.properteis file, it will not ask for user name and password.
13. Login to Admin Console by giving the new user name and password.
14. Import the users and groups back by navigating to :
     Secuity Realms-->myRealms(realm name)-->Migration(tab)-->Import(tab)
    
    Provide the folder name (/tmp) where we have stored the above files.
    
    DefaultAuthenticator.dat
    DefaultCredentialMapper.dat
    exportIndex.dat
    XACMLAuthorizer.dat
    XACMLRoleMapper.dat
15.  Now Go To,
    Home-->Domain-->Security(tab)
    In the advance section, give the new node manager username and password.
    After successfully completing these steps you should be able to change Weblogic Username's password.
16. If you have AIA also installed on SOA, you need to follow some additional steps for AIA to change AIA password.
    Will cover that in separate POST.
    Enjoy :)