[NoCat] LDAP and NoCat, nearly working..

Tue May 23 01:03:21 PDT 2006

Alain,

Thanks for your reply. After I wrote the list yesterday i switched back to the 0.82 auth-server and actually got it working. Not so
that users are authorized, but I now get som log-activity on my windows-server.

The relevant portion of my conf:

DataSource LDAP
LDAP_Host        fil-srv2.sgu.dom
LDAP_Base        ou=sguPublicUsers,ou=SGU,dc=sgu,dc=dom
LDAP_Admin_User        cn=admin,cn=users,dc=sgu,dc=dom
LDAP_Admin_PW        pen10u
LDAP_Hash_Passwords    Yes
LDAP_Search_as_Admin    Yes
LDAP_Filter        mail

I'm using a test user with the logonname "ji", with the domain-name he has a username as so: "ji at sgu.dom". This user is placed in
the sguPublicUsers OU. When my auth-server contacts the windows-server it generates 5 log-entries, see them below:

ENTRY 1:
Logon attempt by:    MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Logon account:    admin
Source Workstation:    FIL-SRV2
Error Code:    0x0

(this means that to user (hence admin) was logged on successfully)

ENTRY 2:
Logon attempt using explicit credentials:
Logged on user:
      User Name:    FIL-SRV2$
      Domain:        SGU
      Logon ID:        (0x0,0x3E7)
      Logon GUID:    -
User whose credentials were used:
      Target User Name:    admin
      Target Domain:    SGU
      Target Logon GUID: -

Target Server Name:    localhost
Target Server Info:    localhost
Caller Process ID:    860
Source Network Address:    192.168.1.5
Source Port:    32804

(192.168.1.5 is infact my auth-server)

ENTRY 3:
Successful Network Logon:
      User Name:    admin
      Domain:        SGU
      Logon ID:        (0x0,0x907B49B)
      Logon Type:    3
      Logon Process:    Advapi
      Authentication Package:    Negotiate
      Workstation Name:    FIL-SRV2
      Logon GUID:    -
      Caller User Name:    FIL-SRV2$
      Caller Domain:    SGU
      Caller Logon ID:    (0x0,0x3E7)
      Caller Process ID: 860
      Transited Services: -
      Source Network Address:    192.168.1.5
      Source Port:    32804

ENTRY 5:

(something about what credentials the user (admin) has on the server)

ENTRY 4:
User Logoff:
      User Name:    admin
      Domain:        SGU
      Logon ID:        (0x0,0x907B49B)
      Logon Type:    3

-----------

As you see I'm nearly there. But in all 5 entries my user ji at sgu.dom is not mentioned - so something is still wrong. In fact I think
entry 2 is the problem. The log-entry ID states that it means something like "when a remote users tries to authorize as another user
(typically when an administrator uses the RUNAS feature on a workstation)". This sounds like a way of doing it.

Does anyone have a clue?

/Jesper

-----Oprindelig meddelelse-----
Fra: nocat-bounces at lists.nocat.net [mailto:nocat-bounces at lists.nocat.net] På vegne af Alain Fauconnet
Sendt: 23. maj 2006 03:51
Til: nocat at lists.nocat.net
Emne: Re: [NoCat] LDAP and NoCat, nearly working..

Hello Jesper,

On Mon, May 22, 2006 at 03:35:29PM +0200, Jesper Haggren, Zolid wrote:
> Hi NoCat list,
> 
> I have a working NoCatAuth setup running with "DataSource = Passwd" - 
> the last thing I would like to get working is for nocat to use my 
> existing Windows 2003 Server Active Directory for the authorization part.
> 
> I tried both with nocat 0.82 and with the ACTARES-fork. Both 
> auth-servers are still running. Heres is my senario:
> 
> I have a nocat-gateway called gw-srv1:
> 
> ETH0, 172.16.1.1: (running DHCP, DNS and so on).
> ETH1, 192.168.1.3
> 
> 
> Then I have 2 Auth-servers (one with 0.82 and one with the 
> ACTARES-fork). Currently I use the one with the ACTARES-fork:
> 
> ath-srv1, ETH0 192.168.1.4 (ACTARES-fork) ath-srv2, ETH0 192.168.1.5 
> (0.82)
> 
> Both work fine in DataSource=Passwd mode.
> 
> Then I have my Windows 2003 Domain controller, fil-srv2 (fil-srv2.sgu.dom):
> 
> ETH0, 192.168.1.11 (windows AD).
> 
> -----------
> 
> The only thing I want is for the AUTH-server to be able to validate a 
> wireless-user by looking at my Windows AD-server. All users who is 
> allowed to access the Internet from the wireless network are located 
> in a OU called "sguPublicUsers".
> 
> I have no use for manipulating users/data trough the nocat-admintool. 
> All user-setup will be done on the Windows server.
> 
> I can't get this to work, and the main problem is in fact that I have 
> no log-file telling me what is wrong - when a user called "ji" tries 
> to logon using his emailadress (as described in the nocat.conf) which 
> is ji at sgu.dom (my ad-domain is called sgu.dom) the nocat gateway returns:
> "That emailadress is unknown. PLease try again".
> 
> 
> All packages should be in place (Net::LDAP and IO::Socket:SSL and so 
> on..). My authserver nocat.conf file is located below.
(...rest deleted...)

I have no direct experience with NoCat using LDAP, but I may need to tackle this soon. Anyway in such a situation my first step
would be to check if your auth gateway is actually sending LDAP requests or not, and if yes, trace these requests. Check tcpdump or
much better [t]ethereal, run them on your auth gateway with "host <your LDAP
server>". Especially [t]ethereal will show you the LDAP
requests/replies completely decoded. That should hint you.

Oh wait...  IO::Socket:SSL... of course if all your LDAP traffic goes over SSL this is a dead end. I'm not much familiar with
Windows AD (I use OpenLDAP) but is there any way to have the LDAP requires go unencrypted during the troubleshooting? If not, ouch.
Well, at least you can see if there's *any* traffic going on between the two boxes.
Maybe NoCat isn't even trying to query LDAP.

Greets,
_Alain_

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