Active Directory Ports Hardening
> The below knowledge base is applies Windows Server to 2008It still applies.
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Hello Wendy,Throughout the multiple technical blogs, I could not get any Active directory port details that applicable for Windows server 2012 and above. So requesting to Microsoft to provide the...
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I have opened the single port and now the replication is working fine. But this is a work around. I would like to know the reason behind the non-standard RPC port used for the DFSR.exe by the...
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Hello Ernest,I went through the link and I can understand that is targeting to 'NON-DCs'.Jaril Nambiar
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Hello Ernest,I'm with you in your suggestion. But my concern is, why the listening port came in an out-of-range than that of the standard?Jaril Nambiar
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Hi Ernest, that's correct - however, according to Microsoft documentation, these dynamic ports should be within the range 49152-65535Fixing the ports is possible - but it appears that it should not be...
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The thing to remember about RPC in general is the same service on a different computer can be exposed via a different RPC port. For example ServiceX on Server1 is on port 50001 and the same service...
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Hi Jaril,agreed - in my opinion, this would warrant a call to Microsoft Supporthth Marcin
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Hi Jaril, this is surprising to see. My understanding is also that the ephemeral ports should be in the higher range - as long as you are using WS 2008 or newer.As far as I can tell, you have two...
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I performed packet capture on the firewall and found that the RODC is trying to communicate with the DC on the port 27375 for DFRS replication. I checked on the DC, the DFRS.exe service is indeed...
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hello,refer these for recommended port list.. Please add exceptions for that ports through firewall. Actual port list...
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Hi Jaril,use the Message Analyzer/Wireshark on both endpoints - this should give you clear indication regarding the blocked port...hth Marcin
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Hello experts,I have tried to restrict my domain controller network between the perimeter network and the corporate network. After a long 'googling' I have added the below ports in the outbond rules of...
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