tailieunhanh - Authentication, Authorization, and Accounting

The chart of accounts, which classifies transactions into individual balance sheet and income statement accounts is closely related to documents and records. The chart of accounts provides the framework for gathering the information necessary for management to make effective decisions and for the preparation of the financial statements in accordance with generally accepted accounting principles. A properly designed chart of accounts can also facilitate the preparation of financial reports sent to grantor agencies for claiming reimbursement of expenses, reporting program results, etc. A chart of accounts which accurately and comprehensively describes the types of transactions which should be in particular accounts. | Cisco Systems Overview Authentication Authorization and Accounting Introduction Cisco Systems has a rich and robust AAA implementation that enables a wide range of application clients including Cable and DSL Dial Over the years authentication authorization and accounting AAA has changed dramatically as users of new-world access technologies seek a way to authenticate authorize and start accounting records for billing user time on their networks. Firewall Gateway General Packet Radio Service GPRS and GPRS Support Node GGSN IP Security IPSec Multiprotocol Label Switching MPLS Open Settlement Protocol OSP Packet Data Serving Node PDSN Public Key Infrastructure PKI Session Initiation Protocol SIP Telco Data Communication Networks DCNs Tunneling voice over IP voIP Remote Access Dial-In User Service RADIUS Cisco IOS Software AAA network security services provide the primary framework to set up access control on a router or access server. Cisco IOS AAA is an architectural framework for configuring a set of three independent security functions in a consistent manner. AAA provides a modular way of performing authentication authorization and accounting services. Cisco Systems Inc. All contents are Copyright 1992-2001 Cisco Systems Inc. All rights reserved. Important Notices and Privacy Statement. Page 1 of 7 Cisco IOS AAA provides the following benefits Increased flexibility and control Scalability Standardized authentication methods RADIUS Terminal Access Controller Access Control System Plus TACACS and Kerberos The Cisco IOS AAA client resides on a router or network access server NAS and can locally perform all authentication authorization and accounting functions. This model does not scale because there can be a large amount of stored data. The RADIUS protocol enables use of an external server so that AAA can query and receive responses. The RADIUS protocol is based on a client server model. A NAS such as a Cisco AS5200 Access Server operates as a client of .