First step in setting up Kerberos authentication is do download edgeCore 3.11.5 or above that contains new oracle Kerberos connection as well as additional changes needed.
After you have download and setup edgeCore for you environment next step will be to setup your edgeCore server for Kerberos connection. That includes setting krb5.conf file on your server as well as registering your Kerberos account by running kinit command.
You can find additional instructions on how to set it up here.
After that is completed you will have to add a java option to environment.sh that is located in your edgeCoreFolder/bin/
Add this option:
JAVA_OPTS=-Djava.security.krb5.conf = /pathToKrbFile/krb5.conf
if you already have Custom JAVA_OPTS you will have to append this option -Djava.security.krb5.conf = /pathToKrbFile/krb5.conf
After settings are changed restart your edgeCore instance and setup the connection through edgeCore.
Oracle connection uses JDBC url for connection along with Kerberos username and password
There are two formats for JDBC string.
This one is if you are using service name:
This one is to use if you have database SID: