Authentication.config — This file is used when Forms Authentication https://plassdata.jira.com/wiki/display/DVISUP/Server+Installation#ServerInstallation-ServerInstFormsAuth is choosen during installation.
Authentication_INT.config — This file is used when Integrated (AD) Security https://plassdata.jira.com/wiki/display/DVISUP/Server+Installation#ServerInstallation-ServInstAD is choosen during installation.
Authorization.config — This file is used when Forms Authentication https://plassdata.jira.com/wiki/display/DVISUP/Server+Installation#ServerInstallation-ServerInstFormsAuth is choosen during installation.
Authorization_INT.config — Contains a list of the AD groups and the login of the sysadmin user .