It's probably not really sending the \. In many programming languages, the $ is a special character and with \ it's 'escaped' to mean a literally $.
What does the Alerts tab tell you?
In your Authentication Source, is the BaseDN high enough to include OU=Computers, or whatever location you have your computer account stored?
Moving to TLS would probably solve your issue as well as that removes the use of $ in the hostname and removes the vulnerability of using password authentication.
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Herman Robers
------------------------
If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
------------------------------
Original Message:
Sent: Oct 10, 2023 07:47 AM
From: PL7
Subject: Clearpass Authentication using EAP-TEAP (EAP-Chaining) - username missing method 1
tryed to duplicate AD source with this filter:

the username mention in the method 1 is :

but in the tracker is see "\" character is added in the username: so it's not match

any idea why enforcement profiles send me "\" + computer name ?

is it possible to remove the "\" in the filter ?
regards.
Original Message:
Sent: Oct 10, 2023 04:46 AM
From: Herman Robers
Subject: Clearpass Authentication using EAP-TEAP (EAP-Chaining) - username missing method 1
You may duplicate your AD Authentication Source, and in there in the query change the Authentication:Username to Authentication:TEAP-Method-1-Username; or even have 2 auth sources under authorization one for computer and one for user authentication. In the end, these values are just the output of LDAP queries, which you can fully customize.
------------------------------
Herman Robers
------------------------
If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
Original Message:
Sent: Oct 09, 2023 02:35 PM
From: PL7
Subject: Clearpass Authentication using EAP-TEAP (EAP-Chaining) - username missing method 1
Thanks Herman , it's works , i have now the name of the computer in the tracker,
another issue is that i cannot not verify the computer (teap method1) , i have no AD info in the input

when i check with only eap-tls (machine authentication) i have well the correct info.

any idea ?
thanks for your help.
Original Message:
Sent: Oct 09, 2023 05:28 AM
From: Herman Robers
Subject: Clearpass Authentication using EAP-TEAP (EAP-Chaining) - username missing method 1
If you want to see the computer account (Method-1), select that in your TEAP Authentication method.
For even further flexibility you can return the IETF:Username with the Authentication-TEAP-Method-1 or Authentication-TEAP-Method-2 or even another attribute or value during your enforcement. The IETF:Username, when returned in an Enforcement will override the sent username (generic) or the method-1 or 2 username (TEAP Method); and allow you for example to return the Computer (Method-1) name if the User (Method-2) fails; or the Username if computer auth fails.
------------------------------
Herman Robers
------------------------
If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
Original Message:
Sent: Oct 06, 2023 02:44 PM
From: PL7
Subject: Clearpass Authentication using EAP-TEAP (EAP-Chaining) - username missing method 1
Hi,
Could you help regarding eap-teap config on clearpass, the config works fine (chaining is ok) but i would like to see the machine hostname in the access tracker when the computer is on the login screen . For now i have to select which method i would see in the tracker, see below user (method2) is selected.



when user is login , eveything is ok


but when the computer is on the logon screen (username stay blank)


is there any solution to seen the computer name from method 1 in the tracker ?
thanks for your help
Patrick.