Cli book 1_ cisco asa series general operations cli configuration guide, 9.6 – aaa and the local database [cisco asa 5500-x series firewalls] – cisco
This chapter describes authentication, authorization, and accounting (AAA, pronounced “triple A”). Data recovery macbook AAA is a a set of services for controlling access to computer resources, enforcing policies, assessing usage, and providing the information necessary to bill for services. Data recovery los angeles These processes are considered important for effective network management and security.
This chapter also describes how to configure the local database for AAA functionality.
Database yml For external AAA servers, see the chapter for your server type.
Authentication provides a way to identify a user, typically by having the user enter a valid username and valid password before access is granted. Database in excel The AAA server compares a user’s authentication credentials with other user credentials stored in a database. G info database If the credentials match, the user is permitted access to the network. Database book If the credentials do not match, authentication fails and network access is denied.
Authorization is the process of enforcing policies: determining what types of activities, resources, or services a user is permitted to access. Q prime database After a user is authenticated, that user may be authorized for different types of access or activity.
Accounting measures the resources a user consumes during access, which may include the amount of system time or the amount of data that a user has sent or received during a session. Top 10 data recovery tools Accounting is carried out through the logging of session statistics and usage information, which is used for authorization control, billing, trend analysis, resource utilization, and capacity planning activities. Data recovery laptop Interaction Between Authentication, Authorization, and Accounting
You can use authentication alone or with authorization and accounting. Data recovery flash drive Authorization always requires a user to be authenticated first. Data recovery cost You can use accounting alone, or with authentication and authorization. Data recovery galaxy s5 AAA Servers
The AAA server is a network server that is used for access control. Database key field Authentication identifies the user. Data recovery nashville Authorization implements policies that determine which resources and services an authenticated user may access. Data recovery minneapolis Accounting keeps track of time and data resources that are used for billing and analysis. Database 4 net AAA Server
The ASA maintains a local database that you can populate with user profiles. Iphone 6 data recovery software free You can use a local database instead of AAA servers to provide user authentication, authorization, and accounting.
If you turn on command authorization using the local database, then the Cisco ASA refers to the user privilege level to determine which commands are available. Database usa reviews Otherwise, the privilege level is not generally used. Easeus data recovery 94fbr By default, all commands are either privilege level 0 or level 15.
For multiple context mode, you can configure usernames in the system execution space to provide individual logins at the CLI using the login command; however, you cannot configure any AAA rules that use the local database in the system execution space. Database join Note
The local database can act as a fallback method for several functions. H2 database download This behavior is designed to help you prevent accidental lockout from the ASA.
When a user logs in, the servers in the group are accessed one at a time, starting with the first server that you specify in the configuration, until a server responds. H2 database url If all servers in the group are unavailable, the ASA tries the local database if you have configured it as a fallback method (for management authentication and authorization only). Data recovery boot disk If you do not have a fallback method, the ASA continues to try the AAA servers.
For users who need fallback support, we recommend that their usernames and passwords in the local database match their usernames and passwords on the AAA servers. 990 database This practice provides transparent fallback support. Data recovery hard drive cost Because the user cannot determine whether a AAA server or the local database is providing the service, using usernames and passwords on AAA servers that are different than the usernames and passwords in the local database means that the user cannot be certain which username and password should be given.
Console and enable password authentication—If the servers in the group are all unavailable, the ASA uses the local database to authenticate administrative access, which can also include enable password authentication.
Command authorization—If the TACACS+ servers in the group are all unavailable, the local database is used to authorize commands based on privilege levels.
VPN authentication and authorization—VPN authentication and authorization are supported to enable remote access to the ASA if AAA servers that normally support these VPN services are unavailable. Data recovery knoxville When a VPN client of an administrator specifies a tunnel group configured to fallback to the local database, the VPN tunnel can be established even if the AAA server group is unavailable, provided that the local database is configured with the necessary attributes.
If you configure multiple servers in a server group and you enable fallback to the local database for the server group, fallback occurs when no server in the group responds to the authentication request from the ASA. 7 data recovery keygen To illustrate, consider this scenario:
You configure an LDAP server group with two Active Directory servers, server 1 and server 2, in that order. H2 database client When the remote user logs in, the ASA attempts to authenticate to server 1.
If server 1 does not respond within the timeout period (or the number of authentication attempts exceeds the configured maximum), the ASA tries server 2.
If both servers in the group do not respond, and the ASA is configured to fall back to the local database, the ASA tries to authenticate to the local database. Dayz database Guidelines for the Local Database
These less-used options are not shown in the above syntax: The nopassword keyword creates a user account that accepts any password; this option is insecure and is not recommended. I phone data recovery The encrypted keyword (for passwords 32 characters and fewer) or the pbkdf2 keyword (for passwords longer than 32 characters) indicates that the password is encrypted (using an MD5-based hash or a PBKDF2 (Password-Based Key Derivation Function 2) hash). Database 3d When you define a password in the username command, the ASA encrypts it when it saves it to the configuration for security purposes. Yorku database When you enter the show running-config command, the username command does not show the actual password; it shows the encrypted password followed by the encrypted or pbkdf2 keyword. O o data recovery For example, if you enter the password “test,” the show running-config command output would appear as something similar to the following: