We apply this severity rating system to each issue addressed in a security bulletin. With regard to bulletins that address multiple vulnerabilities, the overall bulletin severity will reflect the highest severity issue addressed in the bulletin.
AAA accounting has the same rules as authentication and authorization: You must first define a named list of accounting methods. Then apply that list to one or more interfaces (except for the the default method list). The first listed method is used, if it fails to respond, the second one is used and so on.
AAAA may refer to: Internet and computing. AAAA protocol, within computer security, authentication, authorization, accounting and auditing - the AAA protocol (Diameter protocol) combined with auditing; AAAA record, also known as IPv6 address record, maps a hostname to a 128-bit IPv6 address in the Domain Name System (DNS) Internet Authentication Service, as an acronym for the four main services provided: Authentication, Authorization, Accounting, and Auditing.