Want to know more about how your system is communicating? Try the Linux ss command. It replaces the older netstat and makes a lot of information about network connections available for you to easily ...

Two simple filters for wireshark to analyze TCP and UDP traffic Your email has been sent Wireshark is a protocol analyser available for download. This week’s post ...

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 ...

PortExpert is a free application that can give very useful information about all TCP, UDP communications connected to the system and is hence useful to identify potential threats. These days we are ...

I wore the world's first HDR10 smart glasses TCL's new E Ink tablet beats the Remarkable and Kindle Anker's new charger is one of the most unique I've ever seen Best laptop cooling pads Best flip ...

Network geeks among you may remember my article, “Linux Socket Filter: Sniffing Bytes over the Network”, in the June 2001 issue of LJ, regarding the use of the packet filter built inside the Linux ...

UDP is a protocol that enables the exchange of unallocated data packets over a network. The UDP buffer is memory that is assigned by the Linux operating system to temporarily contain the data packets ...

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 ...

I have a VB6 app that needs to send 1.2MB of data through a tcp/ip socket. <BR><BR>If the client is on the same computer as the server app, the transfer is nearly instant. But if the client is on a ...

When designing FPGA-based Ethernet connected embedded systems the priority and necessity of requirements such as cost, area, flexibility etc. varies for each system. Simplified for most systems, it ...