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 ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...

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 ...

If you are a network engineer or a normal user, you may need to find, open or block a virtual port, such as a TCP or a UDP port for an application. Virtual ports help you manage your network hardware ...

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 ...

Have you ever performed surgery on data packets? There are times when that may be the best way to troubleshoot and optimize your network. This edition of the Packet Professor will get you started in ...