MIT Kerberos Documentation

Configuration Files

Kerberos uses configuration files to allow administrators to specify settings on a per-machine basis. krb5.conf applies to all applications using the Kerboros library, on clients and servers. For KDC-specific applications, additional settings can be specified in kdc.conf; the two files are merged into a configuration profile used by applications accessing the KDC database directly. kadm5.acl is also only used on the KDC, it controls permissions for modifying the KDC database.