Configuring AAA methods admin@EXALINK-HYDRA(config)# aaa authentication … The aaa authorization exec default command is used to…. Nexus Aaa Authorization Config Commands. Daylon , 2021/05/06 17:23. The United States and the Northwestern part of and Canada actually refer to this zone…. To configure authentication, authorization, and accounting (AAA) methods for accounting, use the aaa. accounting default…