Tcpdump is a powerful command-line packet analyzer tool used to capture and analyze network traffic in real-time. It is an essential tool for network administrators, security professionals, and developers who need to monitor and troubleshoot network issues.
In this guide, we will show you how to install tcpdump on various operating systems.
Install tcpdump on Ubuntu or Debian-based Systems
To install tcpdump on Ubuntu or Debian-based systems, you can use the following command:
sudo apt-get update && sudo apt-get install tcpdump
This command will update the package manager and install tcpdump.
Install tcpdump on Red Hat-based Systems
To install tcpdump on Red Hat-based systems, you can use the following command:
sudo yum install tcpdump
This command will install tcpdump on your system.
Install tcpdump on macOS
To install tcpdump on macOS, you can use the following command:
brew install tcpdump
This command will install tcpdump using the Homebrew package manager.
Install tcpdump on Windows
To install tcpdump on Windows, you will need to install the Windows Subsystem for Linux (WSL). Follow these steps to install tcpdump:
Install WSL by following the instructions on the Microsoft website.
Once WSL is installed, launch the Ubuntu terminal and run the following command to update the package manager:
sudo apt-get update
Run the following command to install tcpdump:
sudo apt-get install tcpdump
This command will install tcpdump on your system.
Usage in Linux
Show available interface that can be monitor :
# tcpdump -D 1.eth0 2.usbmon1 (USB bus number 1) 3.usbmon2 (USB bus number 2) 4.any (Pseudo-device that captures on all interfaces) 5.lo
Check tcpdump version in CentOS 6.7
# tcpdump --version
tcpdump version 4.1-PRE-CVS_2015_07_23
libpcap version 1.4.0
Usage: tcpdump [-aAdDefhIJKlLnNOpqRStuUvxX] [ -B size ] [ -c count ]
[ -C file_size ] [ -E algo:secret ] [ -F file ] [ -G seconds ]
[ -i interface ] [ -j tstamptype ] [ -M secret ]
[ -P in|out|inout ]
[ -r file ] [ -s snaplen ] [ -T type ] [ -w file ]
[ -W filecount ] [ -y datalinktype ] [ -z command ]
[ -Z user ] [ expression ]
Check tcpdump version in CentOS 7.1
# tcpdump --version
tcpdump: invalid option -- '-'
tcpdump version 4.5.1
libpcap version 1.5.3
Usage: tcpdump [-aAbdDefhHIJKlLnNOpqRStuUvxX] [ -B size ] [ -c count ]
[ -C file_size ] [ -E algo:secret ] [ -F file ] [ -G seconds ]
[ -i interface ] [ -j tstamptype ] [ -M secret ]
[ -P in|out|inout ]
[ -r file ] [ -s snaplen ] [ -T type ] [ -V file ] [ -w file ]
[ -W filecount ] [ -y datalinktype ] [ -z command ]
[ -Z user ] [ expression ]
Commands Mentioned:
- apt-get – command to install, update, and remove software packages on Ubuntu or Debian-based systems.
- yum – command to install, update, and remove software packages on Red Hat-based systems.
- brew – command to install and manage packages on macOS.
- sudo – command to run commands with administrator privileges.
- apt-get update – command to update the package manager on Ubuntu or Debian-based systems.
Conclusion:
In this guide, we have shown you how to install tcpdump on various operating systems. Tcpdump is a powerful tool for analyzing network traffic and is an essential tool for network administrators, security professionals, and developers. By following the steps outlined in this guide, you can easily install tcpdump on your system and start analyzing network traffic.
