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Auth-Type

ATTRIBUTE Auth-Type 1000 integer
Users:L-
Hints:-R
Huntgroups:-R
Additivity:Append
Proxy propagated:No
    VALUE      Auth-Type         Local                0       
    VALUE      Auth-Type         System               1       
    VALUE      Auth-Type         Crypt-Local          3       
    VALUE      Auth-Type         Reject               4       
    VALUE      Auth-Type         SQL                  252     
    VALUE      Auth-Type         Pam                  253     
    VALUE      Auth-Type         Accept               254

This attribute tells the server which type of authentication to apply to a particular user. It can be used in LHS of the user's profile. See section Authentication.

Radius interprets values of Auth-Type attribute as follows:

Local
The value of the Password attribute from the record is taken as a cleantext password and is compared against the Password value from the input packet.
System
This means that a user's password is stored in a system password type. Radius queries the operating system to determine if the username/password supplied in the incoming packet are OK.
Crypt-Local
The value of the Password attribute from the record is taken as an MD5 hash on the user's password. Radius generates MD5 hash on the supplied Password value and compares both strings.
Reject
Authentication fails.
Accept
Authentication succeeds.
SQL
Mysql
The MD5-encrypted user's password is queried from the SQL database section SQL Authentication Type. Mysql is an alias maintained for compatibility with other versions of Radius.
Pam
The username/password combination is checked using PAM.

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