Wireshark, formerly known as Ethereal, is a network traffic analyzer, also called a sniffer, originally designed for *nix operating systems. An adaptation for windows is also available. Wireshark can capture network frames for analysis using libpcap in *nix systems and WinPcap in Windows. Combining support for hundreds of protocols and a powerful filtering system, Wireshark is an indispensable tool for network administrators.
Windows & OSX Installers for Windows and OSX can be downloaded from https://www.wireshark.org/#download
$ sudo add-apt-repository ppa:wireshark-dev/stable $ sudo apt-get update $ sudo apt-get install wireshark
$ sudo aptitude install wireshark
$ sudo pkg_add -r wireshark
- Red Hat
$ sudo yum install wireshark wireshark -qt
Unpack from compressed tar file
$ bzip2 -cd wireshark-2.0.5.tar.bz2 | tar xf -
Change directory to Wireshark source directory
$ cd wireshark-2.0.5
Configure source to build correctly with your version of Unix.
$ make install