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 webMethods Integration Server 11.1 - onPremise - API Sharepoint (OnPremise) - Kerberos delegate Authentification- Kerberos: LoginContext.login failed https: Unknown name or service

Thibaut Volpoet's profile image
Thibaut Volpoet posted Fri November 07, 2025 09:14 AM

Hello,

I've set up an on-premises IS 11.1 on RHEL as part of a proof of concept.

I need to make an on-premises SharePoint API call with Kerberos authentication delegated to the machine.

I'm testing an HTTP GET request to this SharePoint API, passing Kerberos parameters in the call and having the following properties files:

- test.keytab in /config
- jass.conf in /config

On the VM, I successfully obtained a Kerberos token via the command line (kinit). Therefore, it doesn't seem to be a problem with the VM configuration but rather with the product configuration.

Currently, when I test the HTTP GET request, I get this error message:

The logs are in French.

2025-10-27 17:32:38 CET [ISS.0012.9999D] (tid=360) Kerberos : LoginContext.login failed https: Nom ou service inconnu 

I attached extracted server.log & wrapper.log

Can you help with this ?

Attachments  View in library
extracted_wrapper.log 17 KB
extracted_server.log 13 KB
Mathieu Aguesse's profile image
Mathieu Aguesse posted Fri November 07, 2025 01:48 PM

Hi Thibaut,

Can you also provide:

  • The is_jaas.conf
  • And the Kerberos configuration screen (Security > Kerberos) ?

However, I see on the attached logs some weird looking values %server% and %hostname%:

  • In wrapper.log:

INFO   | jvm 1    | 2025/11/06 14:05:07 | Looking for keys for: webm@%server%

  • In server.log:

2025-11-06 10:17:26 CET [ISC.0038.0002D] (tid=355) --> Host: %hostname% 

I don't know for sure if this is the root cause of your issue, but I guess that having %server% instead of a real server may explain the "Nom ou service inconnu".

With kind regards,

Mathieu

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