Why won't Windows Proxy work with all members of the cluster

Document ID : KB000005060
Last Modified Date : 14/02/2018
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Issue:

Windows Proxy is unable to manage Domain Accounts from all members of a CA PAM cluster.

Environment:
A 2 node CA PAM 2.7.1 cluster in which Windows Proxy was being used to manage Domain Accounts. After adding additional nodes to the cluster Windows Proxy did not work with the new nodes.
Cause:

It turns out that CA PAM requires that port 389 be open on the Domain Controller to all CA PAM instances in the cluster.  The documentation, the 2.7 and 2.8 CA PAM WIKIs, currently specify only port 636.  This is not correct.

Resolution:

Make sure that your firewalls allow port 389 to be open to all CA PAM instances in your cluster, in addition to 636.  The documentation will be updated to reflect this requirement.