During the onboarding / rollout of Defender for Endpoint and Azure Arc Agent, the network plays a significant role. Communication via the Internet is usually restricted by segmented networks and secured by firewalls and proxies. To prevent errors or communication problems, the required ports & URLs should be opened to ensure seamless onboarding and operational processes.

For this purpose, I have collected the relevant ports and URLs for Defender for Endpoint, Microsoft Defender Antivirus, Azure Arc Agent, Microsoft Defender SmartScreen, Azure Monitor Agent in the table below.



Usage Region Subcategory Port Url
Microsoft Defender for Endpoint WW CRL 80 crl.microsoft.com
Microsoft Defender for Endpoint WW CRL 80 ctldl.windowsupdate.com
Microsoft Defender for Endpoint WW CRL 80 www.microsoft.com/pkiops/*
Microsoft Defender for Endpoint WW CRL 80 www.microsoft.com/pki/*
Microsoft Defender for Endpoint WW Common 443 events.data.microsoft.com
Microsoft Defender for Endpoint WW Common 443 *.wns.windows.com
Microsoft Defender for Endpoint WW Common 443 login.microsoftonline.com
Microsoft Defender for Endpoint WW Common 443 login.live.com
Microsoft Defender for Endpoint WW Common 443 settings-win.data.microsoft.com
Microsoft Defender for Endpoint WW Common (Mac/Linux) 443 x.cp.wd.microsoft.com
Microsoft Defender for Endpoint WW Common (Mac/Linux) 443 cdn.x.cp.wd.microsoft.com
Microsoft Defender for Endpoint WW Common (Mac/Linux) 443 officecdn-microsoft-com.akamaized.net
Microsoft Defender for Endpoint WW Common (Linux) 443 packages.microsoft.com
Microsoft Defender for Endpoint WW Microsoft Defender for Endpoint 443 login.windows.net
Microsoft Defender for Endpoint WW Microsoft Defender for Endpoint 443 *.security.microsoft.com
Microsoft Defender for Endpoint WW Microsoft Defender for Endpoint 443 .blob.core.windows.net/networkscannerstable/
Microsoft Defender for Endpoint WW Security Management 443 enterpriseregistration.windows.net
Microsoft Defender for Endpoint WW Security Management 443 *.dm.microsoft.com
Microsoft Defender for Endpoint WW Microsoft Monitoring Agent (MMA) 443 *.ods.opinsights.azure.com
Microsoft Defender for Endpoint WW Microsoft Monitoring Agent (MMA) 443 *.oms.opinsights.azure.com
Microsoft Defender for Endpoint WW Microsoft Monitoring Agent (MMA) 443 *.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 unitedstates.x.cp.wd.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 us.vortex-win.data.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 us-v20.events.data.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 winatp-gw-cus.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 winatp-gw-eus.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 winatp-gw-cus3.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 winatp-gw-eus3.microsoft.com
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 automatedirstrprdcus.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 automatedirstrprdeus.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 automatedirstrprdcus3.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 automatedirstrprdeus3.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus1eastprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus2eastprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus3eastprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus4eastprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 wsus1eastprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 wsus2eastprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus1westprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus2westprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus3westprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 ussus4westprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 wsus1westprod.blob.core.windows.net
Microsoft Defender for Endpoint US Microsoft Defender for Endpoint US 443 wsus2westprod.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 europe.x.cp.wd.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 eu.vortex-win.data.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 eu-v20.events.data.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 winatp-gw-neu.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 winatp-gw-weu.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 winatp-gw-neu3.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 winatp-gw-weu3.microsoft.com
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 automatedirstrprdneu.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 automatedirstrprdweu.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 automatedirstrprdneu3.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 automatedirstrprdweu3.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 usseu1northprod.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 wseu1northprod.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 usseu1westprod.blob.core.windows.net
Microsoft Defender for Endpoint EU Microsoft Defender for Endpoint EU 443 wseu1westprod.blob.core.windows.net
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 unitedkingdom.x.cp.wd.microsoft.com
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 uk.vortex-win.data.microsoft.com
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 uk-v20.events.data.microsoft.com
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 winatp-gw-uks.microsoft.com
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 winatp-gw-ukw.microsoft.com
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 automatedirstrprduks.blob.core.windows.net
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 automatedirstrprdukw.blob.core.windows.net
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 ussuk1southprod.blob.core.windows.net
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 wsuk1southprod.blob.core.windows.net
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 ussuk1westprod.blob.core.windows.net
Microsoft Defender for Endpoint UK Microsoft Defender for Endpoint UK 443 wsuk1westprod.blob.core.windows.net
Microsoft Defender Antivirus WW UTC 443 vortex-win.data.microsoft.com
Microsoft Defender Antivirus WW MU / WU 443 *.update.microsoft.com
Microsoft Defender Antivirus WW MU / WU 443 *.delivery.mp.microsoft.com
Microsoft Defender Antivirus WW MU / WU 443 *.windowsupdate.com
Microsoft Defender Antivirus WW MU / WU 443 go.microsoft.com
Microsoft Defender Antivirus WW MU / WU 443 definitionupdates.microsoft.com
Microsoft Defender Antivirus WW MU / WU 443 https://www.microsoft.com/security/encyclopedia/adlpackages.aspx
Microsoft Defender Antivirus WW MU (ADL) 443 *.download.windowsupdate.com
Microsoft Defender Antivirus WW MU (ADL) 443 *.download.microsoft.com
Microsoft Defender Antivirus WW MU (ADL) 443 fe3cr.delivery.mp.microsoft.com/ClientWebService/client.asmx
Microsoft Defender Antivirus WW Symbols 443 https://msdl.microsoft.com/download/symbols
Microsoft Defender Antivirus WW MAPS 443 *.wdcp.microsoft.com
Microsoft Defender Antivirus WW MAPS 443 *.wd.microsoft.com
Microsoft Defender SmartScreen WW Reporting and Notifications 443 *.smartscreen-prod.microsoft.com
Microsoft Defender SmartScreen WW Reporting and Notifications 443 *.smartscreen.microsoft.com
Microsoft Defender SmartScreen WW Reporting and Notifications 443 *.checkappexec.microsoft.com
Microsoft Defender SmartScreen WW Reporting and Notifications 443 *.urs.microsoft.com
Azure Arc Agent WW Used to resolve the download script during installation aka.ms
Azure Arc Agent WW Used to download the Windows installation package download.microsoft.com
Azure Arc Agent WW Used to download the Linux installation package packages.microsoft.com
Azure Arc Agent WW Azure Active Directory login.windows.net
Azure Arc Agent WW Azure Active Directory login.microsoftonline.com
Azure Arc Agent WW Azure Active Directory pas.windows.net
Azure Arc Agent WW Azure Resource Manager - to create or delete the Arc server resource management.azure.com
Azure Arc Agent WW Metadata and hybrid identity services *.his.arc.azure.com
Azure Arc Agent WW Extension management and guest configuration services *.guestconfiguration.azure.com
Azure Arc Agent WW Notification service for extension and connectivity scenarios guestnotificationservice.azure.com, *.guestnotificationservice.azure.com
Azure Arc Agent WW Notification service for extension and connectivity scenarios azgn*.servicebus.windows.net
Azure Arc Agent WW For Windows Admin Center and SSH scenarios *.servicebus.windows.net
Azure Arc Agent WW Download source for Azure Arc-enabled servers extensions *.blob.core.windows.net
Azure Arc Agent WW Agent telemetry dc.services.visualstudio.com
Log Analytics Agent/Microsoft Monitoring Agent WW 443 *.ods.opinsights.azure.com
Log Analytics Agent/Microsoft Monitoring Agent WW 443 *.oms.opinsights.azure.com
Log Analytics Agent/Microsoft Monitoring Agent WW 443 *.blob.core.windows.net
Log Analytics Agent/Microsoft Monitoring Agent WW 443 *.azure-automation.net
Azure Monitor Agent WW Access control service 443 global.handler.control.monitor.azure.com
Azure Monitor Agent WW Fetch data collection rules for specific machine 443 *.handler.control.monitor.azure.com