In the last issue we started following a packet's journey from the wire up to the higher levels of network stack processing. We left the packet at the end of layer 3 processing, where IP has ...

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 ...

I'm trying to make a reliable file transfer service in C using UDP sockets. I already solved the problems related to packets retransmissions, but I can't find a way to make more clients communicate ...

If you deal with network administration or security management, or if you are merely curious about what is passing by over your local network, grabbing some packets off the network card can be a ...

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 ...

To make the best use of the ss command, it’s important to understand what a socket is. A socket is a type of pseudo file (i.e., not an actual file) that represents a network connection. A socket ...