- #Azure sentinel on premise plus
- #Azure sentinel on premise windows
Browse/Query (KQL) the LAW for Security Events. Define the “Forwarding Event Logs” log to collect from. 
Add the Microsoft Sentinel, “Windows Forwarded Events (Preview)” connector. For on-premises WEC server(s), enroll it/them in the Azure Arc service. Create a subscription on the WEC to define what logs and events to receive. Create a Group Policy to define where the clients are to request the logs and events (Subscription), they are to send to the WEC. #Azure sentinel on premise windows
Build a Windows Event Collector (WEC) server to host the security event logs from client (source) computers. Note: Microsoft Sentinel must be enabled/deployed prior to the deployment of the AMA agent. The WEC will then need the AMA loaded to send the events to a Log Analytics Workspace (LAW) that is monitored by Microsoft Sentinel. To capture the events without having to load the Azure Monitoring Agent (AMA) the Windows Event Forwarding process can be used to send logs to a “Windows Event Collector” (WEC). Windows hosts already have this built into the operating system. There is no need to load an agent on every device to capture the Windows Security Event Logs from your on-premises Windows workstations & servers. Windows Event Forwarding Log Collector to Microsoft Sentinel Rollout This will then provide the customer complete access to the logs from the hosts that exist outside of Azure (On-Premises, AWS, GCP for example) that were aggregated with WEF.īelow I have walked through the steps needed to help deploy a WEF to Microsoft Sentinel infrastructure. The Microsoft Sentinel connector “Windows Forwarded Events (Preview)” requires AMA, as it is not supported for MMA, and AMA requires the deployment of Azure Arc. Once one or more WEC server have been stood up then you will need to add an “Azure Arc” connection to Azure, so Microsoft Sentinel can “Connect” to the WEC server. Size of WEC server, amount of traffic being sent,… I have seen that the number of a clients that a WEC server can handle, could go as high as 10,000 clients but again the environment factors enter into this. Since there are many factors that enter into that question. 
A WEC server can’t have that large of a number of clients so it has to be split out, and I have been asked “how many clients could connect to a single WEC server?” There is no precise answer to that question.
Imagine a customer with close to 200,000 endpoints and having to maintain the installed client base, that could be a real headache and client costs are very high (I am working with such a scenario). Having the ability to get access to all of the enterprises Windows Event logging data without having to load a client (WEF is built into the o/s) has two major advantages.
#Azure sentinel on premise plus
Windows Event Forwarding (WEF) isn’t something new, I believe it has been around for more than 20 years, but the ability to query has never been its strong point, plus storage can be an issue. Microsoft Sentinel is the alerting mechanism that finds the anomalies in your environment and can alert you to go evict them.
She lays there quietly but when I say “Squirrel” and point, her back problems vanish temporarily as she vanquishes the little critter (don’t worry she never gets close to one).Īs I initially sat and work on the technical topic of this blog, it dawned on me how much Raven needing help finding intruders and what Microsoft Sentinel (Formerly Azure Sentinel) can provide to our customers. Raven has never given up on protecting the yard, but she needs help from me to find the intruders. This past summer I was able to spend a lot of time in my backyard with Raven quietly resting alongside me. My little buddy Raven (miniature Schnauzer) has been dealing with genetic back problems that have made it difficult to run or jump, so her days of roaming the yard and scaring off squirrels has been curtailed. It has been a while since Raven, and I have blogged on security.
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