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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 ...

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 ...

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 ...

In a previous article, we explained how you can use the sendfile() syscall to reduce the overhead of data transfer from a disk to a network. Now, we’re going to cover another aspect of network ...

So I'm looking at the output of 'netstat -s -t' and I see the various TCP retransmit counters increase quite a bit. Particularly concerning is this counter: Tcp: 223726 active connections openings ...

A socket is defined as the endpoint of a two-way communication between two processes running over a network. Inter-process communication can be achieved using sockets. After a connection between the ...

Due to the complexity of developing and maintaining the kernel, only the most essential and performance-critical code are placed in the kernel. Other things, such as GUI, management and control code, ...