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Update prerequisites.md #288

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4 changes: 2 additions & 2 deletions ATPDocs/deploy/prerequisites.md
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Expand Up @@ -69,13 +69,13 @@ Sensors running on these operating systems will continue to report to Defender f
|**Protocol** |**Transport** |**Port** |**From** |**To** |
|------------|---------|---------|-------|--------------|
|**Internet ports** | | | | |
|**SSL** (\*.atp.azure.com) <br><br>Alternately, [configure access through a proxy](configure-proxy.md). |TCP |443 |Defender for Identity sensor|Defender for Identity cloud service|
|**SSL** (\*.atp.azure.com) <br><br>Alternatively, [configure access through a proxy](configure-proxy.md). |TCP |443 |Defender for Identity sensor|Defender for Identity cloud service|
|**Internal ports** | | | | |
|**DNS** |TCP and UDP |53 |Defender for Identity sensor|DNS Servers |
|**Netlogon** <br>(SMB, CIFS, SAM-R)|TCP/UDP |445 |Defender for Identity sensor|All devices on the network|
|**RADIUS** |UDP |1813|RADIUS |Defender for Identity sensor |
|**Localhost ports**: Required for the sensor service updater <br><br>By default, *localhost* to *localhost* traffic is allowed unless a custom firewall policy blocks it. | | | | |
|**SSL** |TCP |444 |Sensor service|Sensor updater service |
|**SSL** |TCP |443 |Sensor service|Sensor updater service |
|**Network Name Resolution (NNR) ports** <br><br>To resolve IP addresses to computer names, we recommend opening all ports listed. However, only one port is required. | | | | |
|**NTLM over RPC** |TCP |Port 135 |Defender for Identity sensor|All devices on network|
|**NetBIOS** |UDP |137 |Defender for Identity sensor|All devices on network|
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