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Before registering Trend Micro Apex One to the Trend Micro Apex Central server, you must first obtain the Trend Micro Apex Central certificate file from the Trend Micro Apex Central server from the following location:
<Apex Central installation folder>\Certificate\CA\TMCM_CA_Cert.pem
Trend Micro Apex One and Trend Micro Apex Central use the certificate and public key encryption to ensure that only authorized registration and policy management communication occurs between the servers. If either server detects unauthorized communication, the server rejects any registration or policy settings being received.
Important
Important
If your company uses a customized certificate on the Trend Micro Apex Central server, you must upload the Root CA certificate during the Trend Micro Apex Central registration.