The following command gives a specific subnet access to a port in the new RPC dynamic port range:. Note The commands in this section take effect immediately.
After you create all the block rules and all the optional allow rules for the configured RPC ports, assign the policy by using the following command:. Note The server may require more than 20 TCP ports. You can use the rpcdump. Summary This article describes how to configure RPC to use a specific dynamic port range and how to help secure the ports in that range by using an Internet Protocol security IPsec policy.
More Information There are multiple configuration tasks that must be completed in order to relocate, reduce, and restrict access to RPC ports.
For example, type the following command on Windows hosts to block all incoming access to TCP ipsecpol. Assign the IPsec policy Note The commands in this section take effect immediately. Notes The RPC configuration changes require a restart. The IPsec policy changes take effect immediately and do not require a restart.
Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! Any more feedback? The more you tell us the more we can help. Can you help us improve? Resolved my issue. Clear instructions. Easy to follow. Add a comment. Active Oldest Votes. From the article you link to: IPSeccmd.
Colin Pickard Colin Pickard Thanks, but this. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. To do this, use one of the following options. Caution Because each WINS infrastructure is unique, these changes may have unexpected effects on your infrastructure. We strongly recommend that you perform a risk analysis before you choose to implement this mitigation.
We also strongly recommend that you perform complete testing before you put this mitigation into production.
This occurrence prevents this option from blocking the packets that you want. The following command makes the IPSec policy effective immediately if there is no conflicting policy. If you experience problems on the network after you enable this IPSec policy, you can unassign the policy and then delete the policy by using the following commands:. To do this, follow these steps:. Release Date: December 2, For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:.
Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. If you are downloading the WINS Replication Blocker script to your hard disk, create a new folder to temporarily save the file to and extract the file from. Caution Do not download files directly to your Windows folder.
This action could overwrite files that are required for your computer to operate correctly. Locate the file in the folder that you downloaded it to, and then double-click the self-extracting. However, as of November , we are not aware of any customers who have been affected by this issue. Therefore, if your servers are functioning as expected, continue as described. You are prompted in a loop, and you can enter as many IP addresses as needed. After you deploy the security update, you can remove the IPSec policy.
To do this, run the script. Type 3 and then press ENTER to select option 3 when you are prompted to select the option that you want.
For additional information about IPsec and about how to apply filters, click the following article number to view the article in the Microsoft Knowledge Base:.
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