[RADIATOR] Radiator and LDAP2 to Active Directory

Hugh Irvine hugh at open.com.au
Thu Aug 20 00:59:33 UTC 2020

Hi Steve -

You would set up two (or more) AuthBy LDAP2 clauses.

Something like this:


	AuthByPolicy ContinueUntilAccept

	<AuthBy LDAP2>

	<AuthBy LDAP2>



The reference manual “doc/ref.pdf” has been reorganised, see sections 3.9.11 and 3.9.12.



> On 20 Aug 2020, at 10:47, Steve Phillips <steve at focb.co.nz> wrote:
> Hi Guys,
> Just a couple of queries about setting up Radiator 4.24 to bind to LDAP as a user.
> I currently have the following AuthBy LDAP2 configuration
> <Handler>
>         <AuthBy LDAP2>
>                 Host  
>                 # Microsoft AD also listens on port 3268, and
>                 # requests received on that port are reported to be
>                 # more compliant with standard LDAP, so you may want to use:
>                 #Port 3268
>                 AuthDN uid=%U
>                 AuthPassword %P
>                 BaseDN          ou=example users,dc=example,dc=com
>                 Scope           sub
>                 ServerChecksPassword
>                 UnbindAfterServerChecksPassword
>                 UsernameAttr sAMAccountName
>                 #HoldServerConnection
>                 AuthAttrDef logonHours,MS-Login-Hours,check
>                 # Get user group memberships from this attribute
>                 GroupMembershipAttr memberOf
>         </AuthBy>
> </Handler>
> My users are under a basedn as above but are in two different folders/Org Units
> ou=users1,ou=example users,dc=example,dc=com
> ou=users2,ou=example users,dc=example,dc=com
> as a result, I can’t easily setup a user auth using  “AuthDN uid=%U,ou=users1,ou=example users,dc=example,dc=com” as some users will be in users2 
> When I was playing with FreeRadius I could set the Ldap-UserDN to %U at example.com and this would successfully authenticate the user, but if I set AuthDN %U at example.com in radiator (I assume this is the same due to the error message saying it attempted a bind as user at example.com) I get a credential error
> 00000000 Thu Aug 20 09:48:48 2020 103966: ERR: AuthLDAP2 Could not bind connection with uid=user001 at example.com, **obscured**, error: LDAP_INVALID_CREDENTIALS (server port 389).
> 00000000 Thu Aug 20 09:48:48 2020 104273: ERR: AuthLDAP2 Backing off from port 389 for 600 seconds.
> How would you “bind” as that user in radiator when you have users scattered across multiple sub containers (I really don’t want to bind as a robot account as this presents an issue security wise)
> I addition to this, someone asked a few years back (2004) about the timeout issue with an incorrect user creating a bad  bind with a 10 min backoff. Hugh responded saying to look at section 6.35.19 in the Radiator 3.9 manual and this no longer exists ☺ He mentioned a ‘Timeout” directive, which I tried (Timeout 0) to no effect, how would you reduce this backoff on ‘bad user’ to essentially 0? (or at least, less than 10 Mins each time someone types their password incorrectly) ?
> Thanks in advance!
> -- 
> Steve.
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> radiator at lists.open.com.au
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Hugh Irvine
hugh at open.com.au

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