Edvin Seferovic wrote:

before somebody yells "not again" - I just wish to ask if it is possible to use MS-CHAP and CHAP authentication with a LDAP backend which contains clear-text passwords as well as NT-Password ( used for MS-CHAP ) ??? Alan - yes/no answer please :)

Read the web page: http://deployingradius.com/documents/protocols/compatibility.html If you're doing "bind as user" in LDAP, read this: http://deployingradius.com/documents/protocols/oracles.html

If positive - can somebody give me an example of attribute mapping to ldap for both ( MS-CHAP and CHAP ) to work ?

You don't do attribute mappings. See the "ldap" section in radiusd.conf, and look for "password_attribute".

My setup with LDAP as backend is working with a mapping of NT-Password to sambaNTPassword like this :

checkItem NT-Password sambaNTPassword

MS-CHAP works just fine !

For CHAP I added

password_header = "{clear}" password_attribute = "userPassword" password_radius_attribute = "User-Password"

Where did that last line come from?

to the LDAP module configuration. But unfortunately chap module doesn't like my clear-text password ( stored in userPassword ) for authentication :( How else can I say CHAP where to look for the clear-text password.

See the FAQ for "it doesn't work". Alan DeKok.