Steps to i have performed in local instance.
1) Login into AEM as a admin user
2) Create new user example “localadmin”
3) Assign the “localadmin” user to administrators group
4) Go to the system/console/configMgr/ Search for “Apache Sling Web Console Security Provider” configuration
5) Add the “localadmin” user in “User Names”
6) Login with localadmin user go to the system/console/configMgr/
7) Search for the “Apache Sling Jcr Installer”
8) Delete the configuration. Wait for some time you will be automatically logged out from the Felix console.
9) Login back with admin user and verify the “Apache Sling Web Console Security Provider” configuration. The user gets removed from the configuration.
Is this is the correct behavior.?
And here raises a big question if I delete the “admin” username from the “Apache Sling Web Console Security Provider” configuration, how to access Felix console and also how to restore back the default or admin user to the configuration.