---
sourceDocument: Xanadu Operational Technology Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/operational-technology

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu Operational Technology Management

ft:clusterId :

    - optm

bundleId :

    - optm

workflow :

    - Technology


---

# Review access to knowledge bases

# Review access to OT knowledge bases for unauthenticated users {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Review the Operational Technology (OT) knowledge bases that are accessible to unauthenticated users by using the user criteria and glide.knowman.block_access_with_no_user_criteria property
settings.

## Before you begin

Role required: knowledge_admin or admin

## About this task

If you want to restrict unauthenticated users for a knowledge base, you can use the user criteria or the glide.knowman.block_access_with_no_user_criteria property settings.

## Procedure

1. Navigate to AllKnowledgeAdministrationKnowledge Bases.
2. Review the OT knowledge bases that are accessible to unauthenticated users.
3. **Optional:** To restrict unauthenticated users for a knowledge base by using the user criteria, select the knowledge base record and update its user criteria.  
   For more information about creating the user criteria, see [Create the user criteria for an OT knowledge base](https://servicenow-prod.fluidtopics.net/Ut0Kf3981XjHUHm5j00LAQ "Create a user criteria record to determine the users who can read or contribute to an Operational Technology (OT) knowledge base."). For more information about assigning the user criteria, see [Assign the user criteria to an OT knowledge base](https://servicenow-prod.fluidtopics.net/JuUVUjTLgGie7TNgH1H7LQ "Assign the user criteria records to an Operational Technology (OT) knowledge base to control which users can create, read, write, and retire knowledge articles within the knowledge base.").
4. **Optional:** Restrict unauthenticated users for a knowledge base by using the glide.knowman.block_access_with_no_user_criteria property settings.  
   1. Navigate to AllKnowledgeAdministrationProperties.
   2. Set the glide.knowman.block_access_with_no_user_criteria property settings to true.
   3. Select Save.
   {#configure-access-to-ot-knowledge-bases__ol_xqx_3cv_zzb}
{#configure-access-to-ot-knowledge-bases__steps_qgt_5z5_zzb}

*[\>]: and then