>This is just a reminder for myself, the code is not mine but can be found at multiple places on the web so I have no idea who the initial owner is and who to give credits.

export configuration:

java weblogic.WLST
connect('weblogic','weblogic', 't3://somedomain:7001')
domainRuntime()
cd('/DomainServices/DomainRuntimeService/DomainConfiguration/FirstDomain/SecurityConfiguration/FirstDomain/DefaultRealm/myrealm/AuthenticationProviders/DefaultAuthenticator')
cmo.exportData('DefaultAtn','/tmp/export.ldif', Properties())

import configuration:

java weblogic.WLST
connect('weblogic','weblogic', 't3://someotherdomain:7001')
domainRuntime()
cd('/DomainServices/DomainRuntimeService/DomainConfiguration/SecondDomain/SecurityConfiguration/SecondDomain/DefaultRealm/myrealm/AuthenticationProviders/DefaultAuthenticator')
cmo.importData('DefaultAtn','/tmp/export.ldif', Properties())