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SteveCombs's avatar
SteveCombs
Copper Contributor
Apr 23, 2019

MCAS Help with ZSCaler

I recently implemented Cloud App Security with a ZSCaler instance.  I am getting the logs to come over into MCAS, but when they are doing so, they user ID is coming anonymized.   I have checked in MCAS and ZScaler, and the obscuration setting is turned off.   Any body have some suggestions on what else to look at in regards to the User ID being shown incorrectly?   

 

Note, when I do put the obscured ID into MCAS decrypting tool, MCAS is able to resolve it. 

8 Replies

    • SteveCombs's avatar
      SteveCombs
      Copper Contributor

      Eli Shlomo 

       

      It turns out that the source for ZScaler data needs to be NSS. It is hard coded into the MCAS software. 

      • Danny Kadyshevitch's avatar
        Danny Kadyshevitch
        Former Employee
        That is incorrect. Data source name (i.e. NSS) isn't hardcoded in MCAS, and can be modified in Zscaler 'zbridge-mcas.properties' file.
  • Hi SteveCombs,

     

    Before taking this to engineering for troubleshooting, could you please confirm that when creating your Zscaler data source in MCAS portal, you didn't mark the checkbox to anonymize PII? (See more details in the attachment)

     

    Thanks,

    Danny.

     

     

    • SteveCombs's avatar
      SteveCombs
      Copper Contributor

      I am checking today on this setup, but I am pretty sure this checkbox is not selected.  If so, should we open a ticket with MS in your opinion?

      Danny Kadyshevitch 

      • Danny Kadyshevitch's avatar
        Danny Kadyshevitch
        Former Employee
        Steve,

        Please note that this option is set only once when the data source is created.
        I'd suggest that you delete the current data source, and create a new one with the exact configuration (consider not checking the anonymization checkbox) and then see whether data still comes in the same way.

        If this still doesn't resolve your case, so opening support ticket is the suggested action.

        Thanks,
        Danny.

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