Forum Discussion

Nawel335's avatar
Nawel335
Copper Contributor
Feb 04, 2021

Needs Ports MDI

Hello Everyone,   I'm working on Microsoft Defender for Identity topic, i am at the ports opening part. can you please tell me what is the need to open port 444? for updates are there not automatic...
Nawel335's avatar
Nawel335
Copper Contributor
Feb 04, 2021

EliOfek 

thank you for the reply, on the other hand I will like to know for the port 444  is open from the sensor service to the sensor update service. it's in the cloud or to a URL like '* .atp.azure.com"?

EliOfek's avatar
EliOfek
Icon for Microsoft rankMicrosoft
Feb 04, 2021

Nawel335 \No, it's localhost, internal machine communication between 2 windows services on the machine itself. nothing goes out of the machine via 444.

  • pugazhendhi's avatar
    pugazhendhi
    Brass Contributor
    Mar 04, 2021
    Before installation of DFI/ATP, due we need to check for port 444 open status in server or this port will list after the agent installtion?
    • EliOfek's avatar
      EliOfek
      Icon for Microsoft rankMicrosoft
      Mar 05, 2021
      It's best to verify it's open before deployment (it should be by default, we added this requirement to the docs because we had a few customers how tend to over harden, and it was blocked for them...)
      • gkjarhead's avatar
        gkjarhead
        Copper Contributor
        Sep 21, 2023

        EliOfek what about when installing on exchange servers. they use port 444 already. so is there a way to change this?