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Rafi1's avatar
Rafi1
Icon for Cirrus rankCirrus
May 29, 2025

Adding member 3 to an existing cluster

Hello,

Currently, I have an on-premises cluster with two members, and authentication is handled via a remote Active Directory located within the organization.

The third machine that will be added to the cluster will be located at the DR site.

 

Is it possible to configure authentication only for the DR machine via Azure (Enterprise Application), without changing the authentication method for the two existing on-premises machines?

 

Thanks in advanced 

2 Replies

  • f51's avatar
    f51
    Icon for Cumulonimbus rankCumulonimbus

    Hi Rafi,

    You can’t set up different authentication methods for individual members within a single F5 cluster. For example, you can’t have some nodes using on-premises Active Directory and others using Azure AD or an Enterprise Application. F5 clusters—like BIG-IP device clusters or NGINX Controller clusters—are built to share a unified authentication setup. That means the same authentication method applies to all members across the cluster. 

  • Hi Rafi,

    Is this adding an additional BIG-IP to the Device Service Cluster for LTM, or is this adding another system to handle BIG-IP DNS services?