The techniques and tools used to achieve this attack can be found here , here , and here. After working with the client, the necessary changes were successfully implemented. Furthermore, there could be instances wherein a DNS query is made, but no follow-up connection is attempted. This blog post will walk you through how to enable and track down hosts performing DNS queries for non-existent records. Once the wildcard record has been created, we will enable Debug Logging.
Click Next: Verify that the selected settings are correct, click Finish: Creating a host A record This section of the guideline is here to mostly check all the steps you performed earlier.
Record A — a record that lets you map hostnames to an IP address of the host. In Name, type a name of the host with no domain, it will use the name of the Zone as a domain and your IP address. Check off the section "Create associated pointer PTR record", to verify if both Forward and Reverse Lookup Zones are operating properly: If the Name field is blank it uses parent domain name. You can also add records for other servers: Once you are finished, click Done.
Making sure everything is correct Check the changes in the folders of the zones in the example below you can see 2 records appeared in each of them : Open the command line cmd or PowerShell and run the nslookup command: It shows that the default DNS server is example To make sure that the Forward and Reverse Zones are operating properly, you can send two queries: To query the domain; To query the IP address: In the example, we have got appropriate responses for both queries.
There is an option to send a query to an external resource: We see a new line here "Non-authoritative answer". To compare, all the same queries were made on the server where the forward and reverse zones were not configured: Here, the machine assigned itself as a default DNS server.
Rate this Please tell us why are you willing to rate like this? Rating: 5. Previous post Managing project participants February 12, If not, check the box and follow the instructions in the wizard. Once the installation is verified, it is time to configure the DNS role. To do this, once again we will use the Server Manager.
Once there, please enter the Tools menu. Then, click on DNS:. Then the DNS manager will be displayed. Please right-click on the name of the server. Now it is time to select the optimal alternative for the zone to be used on the server. If you are using small networks, then I recommend creating a forward lookup zone. For security reasons, I recommend using the first option.
In this option, it is possible to configure the DNS server as a temporary reseller. Allow DoH. If the servers don't support DoH, non-encrypted queries will be issued. Require DoH. Will require that queries are performed using DoH. If you require DNS query traffic on Active Directory Domain Services network to be encrypted, consider implementing IPsec based connection security rules to protect this traffic. Windows Server ships with a list of servers that are known to support DoH.
Specify the URL of the DoH template and whether you'll allow the client to fall back to an unencrypted query should the secure query fail.
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