Configure ASA for ASDM access

Cisco has a nice GUI, called Adaptive Security Device Manager (ASDM), for configuring and monitoring ASA devices.
But first of all you have to do some configuration to prepare your ASA for ASDM access.

! authenticate ASDM access against local database
aaa authentication http console LOCAL
username adm password ccc

! enable http server and allow management access
http server enable
http [...]