Store this file somewhere on your computer. The reason is that the PPA will deliver quicker updates, which the Ubuntu operating system can’t provide. Ubuntu instructions On Ubuntu, the best way to use Wireshark is to enable a third-party PPA. Go to and retrieve an ASCII copy of Alice in Wonderland. To install Wireshark on Linux, open up a terminal by pressing Ctrl + Alt + T or Ctrl + Shift + T and follow the instructions below. Of course, we’ll be running Wireshark during this time to obtain the trace of the TCP segments sent and received from your computer. You’ll do so by accessing a Web page that will allow you to enter the name of a file stored on your computer (which contains the ASCII text of Alice in Wonderland ), and then transfer the file to a Web server using the HTTP POST method We’re using the POST method rather than the GET method as we’d like to transfer a large amount of data from your computer to another computer. Tool: Wireshark (Download from ) _ Part 1: Capturing a bulk TCP transfer from your computer to a remote server Before beginning our exploration of TCP, we’ll need to use Wireshark to obtain a packet trace of the TCP transfer of a file from your computer to a remote server. In this lab, we will see actual traffic using these two protocols. Background: We have discussed TCP and IP both recently in lecture. 2 Install the libpcap package with the following command. So if you use Wireshark in the terminal, you can not install this package. yum install gtk This package is used to create a wireless graphical environment. Install a Sniffer and Perform Packet Captures Objective: Students will gain a better understanding of TCP and IP, two important protocols. Tutorial Wireshark installation on CentOS Linux 1 First, install the GTK package with the following command.

Wireshark linux command