Authenticate to an external database

Alan DeKok aland at
Mon Jun 20 21:17:32 CEST 2016

On Jun 20, 2016, at 3:07 PM, Mauricio <mauri5000 at> wrote:
>> 	A postgress database of students from a college, that already has it own schema

  You can edit the SQL queries to use that schema.

  Can you:

a) SELECT by user-name from the RADIUS packet?  and

b) get a password in some format?

  Yes: write a SELECT statement to do that:

update control {
	Cleartext-Password := "%{select password from table where name=%{User-Name}"

  Or, no: you can't get the password from the database, so what you want to do is impossible.

>> 	The problem is that the database is located in an external server and is not a freeradius schema's database. i mean, in the database there  is no table radcheck, etc.

  That's fine.

  But are you doing EAP-TLS?  If so, there are no passwords in the RADIUS packets.  So you can't check passwords against an external database.

  Alan DeKok.

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