Part I of this article discussed tcpdump, a command-line utility that sniffs network traffic. Now let's see what it can do. Scenario 1: Established Telnet Connection Using tcpdump we can analyze the ...

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 ...

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 ...

Netstat, the TCP/IP networking utility, has a simple set of options and identifies a computer’s listening ports, along with incoming and outgoing network connections. This data can be very helpful if ...