How does OMA-DM client (omadmclient.exe) communicate to MS WNS? Does this process use the Svchost.exe process to connect outbound ?

Matt Geiger 25 Reputation points
2023-07-27T14:40:40.29+00:00

I have a 3rd part MDM company (workspace ONE) we are setting up proxy rules but would like to connect directly to WNS as well as the MDM server. Before we make some changes on the Proxy and firewall we have a few question.

  1. How does OMA-DM client (omadmclient.exe) communicate to MS WNS? Does this process use the Svchost.exe process to connect outbound ?
  2. How does svchost.exe renew its TCP connections to WNS service. What is the connection mechanism entails?
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  1. Miguel Gonçalves | AVANADE 886 Reputation points
    2024-06-11T13:51:43.6266667+00:00

    Hi Matt,

    "How does OMA-DM client (omadmclient.exe) communicate to MS WNS? Does this process use the Svchost.exe process to connect outbound ?"

    Reply: The OMA-DM client communicates with the server over HTTPS. It uses DM Sync (OMA DM v1.2) as the message payload1. https://video2.skills-academy.com/en-us/windows/client-management/oma-dm-protocol-support

    "How does svchost.exe renew its TCP connections to WNS service. What is the connection mechanism entails?"

    Reply: The OMA-DM client itself does not directly use the Svchost.exe process for outbound communication to WNS. Svchost.exe is a generic host process that runs multiple Windows services. It doesn’t specifically handle OMA-DM communication. Instead, the OMA-DM client establishes its own connections to WNS using HTTPS.

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