NetTIP: Extracting Digital Certificates from Network Captures in Easy Steps

Introduction Troubleshooting connectivity issues in scenarios involving SSL/TLS communications usually involve an important point to verify whether the certificates exchanged during that process (TLS Client/Server Hello) is the correct one and has the attributes or extensions in place such as EKU, SAN, and others. In this article, we will show you how to extract digital…


Issues to join a node to a Cluster between sites? Problem solved!

Introduction Here is Dante Stancato, Support Engineer from Windows Networking team, and in this article, we will explore an interesting topic, based in several cases we’ve received recently, where you may experience communication failures between two Failover Cluster Nodes. This behavior usually happens on the process of joining nodes to a Failover Cluster in an…


Active Directory Replication fails due network device tricking RPC traffic

Hello, here is Daniel Mauser from Windows Networking Support team. Recently I worked in a support case where customer complained about Active Directory replication issues, and the underline issue was caused by a device in the middle, which was doing some kind weird behavior with TCP/IP. In this scenario, basic test connectivity by using tools such…