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Bravo's avatar
Bravo
Icon for Nimbostratus rankNimbostratus
Feb 26, 2024

APM - authentication does not work when pool of AD servers are used

Dear All

I am facing issue with APM AD authentication.

 

Access  ››  Authentication 

When i use single AD server, authentication works fine.

The moment i change to pool of AD servers, it stops working.( i tried adding only the known working AD server)

 

I am just using a simple APM policy.

Please help.

 

Thank you

 

5 Replies

    • Bravo's avatar
      Bravo
      Icon for Nimbostratus rankNimbostratus

      Dear Amine

      Please see the configurations.

      The one used as "pool" is not working

      The one used as "Direct" is working.

       

      The logs shows as below:

       01490010:5: /Common/Azure_AD_Servers:Common:f040bbbf: Username ''
      Feb 25 13:19:24 exlb-f502.azure.com err apmd[14492]: 01490107:3: /Common/Azure_AD_Servers:Common:fb31d8a4: AD module: authentication with 'xxxx' failed: Cannot contact any KDC for realm 'ZZZ.COM', principal name: arul@ZZZ.COM  (-1765328228)

       

      Thank you

      Arul

      • What is the status of the pool member?
        I also think you should use a tcp health monitor with port 88 to make sure the DC is up and running.