Security practitioners for decades have advised people to limit DNS queries against their DNS servers to only use UDP port 53. The reality is that DNS queries can also use TCP port 53 if UDP port 53 ...

In the world of Linux networking, protocols play a crucial role in enabling seamless communication between devices. Whether you're browsing the internet, streaming videos, or troubleshooting network ...

In the last newsletter we started discussing the protocol stack used for transporting voice over IP. Today we’ll move to the control for those conversations. By the way, before we get all those e-mail ...

In this tutorial we will discuss the concept of Ports and how they work with IP addresses. If you have not read our article on IP addresses and need a brush up, you can find the article here. If you ...

The current IP address scheme of 32-bit words is fast becoming inadequate. It would appear that 2 32 = 4 294 967 296 combinations of addresses should be enough for everybody, but in practice this is ...

The 11th generation TCP Accelerator delivers an unprecedented number of 1K+ TCP/UDP Connections in ~300 nanoseconds with sustained ~10G bps throughput, providing up to 5x advantage over the legacy ...

This session focuses on Express Logic’s NetX TCP/IP Stack and its use in real-time embedded applications that run on Renesas RZ processors. We will explain how to use NetX TCP and UDP networking ...

Port Query (PortQry.exe) is a command-line utility in the Windows operating system that you can use to help troubleshoot TCP/IP connectivity issues. The tool reports the port status of TCP and UDP ...

A novel attack technique is found capable of launching a looped denial of service (DoS) attack between a pair of network applications, blocking legitimate access to their respective servers ...