Netstat
List network interfaces on Linux
Show the available network interfaces and information on Linux with the right tools. We cover common replacements for iptables and netstat, with examples.
Summary
The network configuration is a common place to start during system configuration, security audits, and troubleshooting. It can reveal useful information like MAC and IP addresses. This guide helps you to gather this information on Linux, including listing all available network interfaces and its details. Show network interfaces Linux Every Linux distribution is using its own way of configuring the network configuration details. Therefore, it is good to know which tools can be used to query these details in a generic way.
Which Linux process is using a particular network port?
Seeing the 'address in use' error or need to find out which process is listening to a particular port on Linux? Here are the tools to find out!
Summary
Most network related services have to open up a network socket, so they can start listening for incoming network requests. It is common to find the TCP or UDP being used as the main communication protocol. In this article, we will check what ports are used by which Linux process. Auditing processes and network services Find out what process is listening to a port Only one process can actively listen to a TCP or UDP port.
Alternative for netstat: ss tool
Newer distributions do not use netstat anymore in favor of other tools like ss. This alternative tool can show in-depth information about socket statistics.
Summary
The ss tool helps system administrators and security professionals to display information about network connected applications. Learn how to maximize its potential and get everything out of this nifty tool.