Difference between revisions of "Tutorials and How-tos/Tcpdump"
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Tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. It was originally written in 1987 by Van Jacobson, Craig Leres and Steven McCanne who were, at the time, working in the Lawrence Berkeley Laboratory Network Research Group. | Tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. It was originally written in 1987 by Van Jacobson, Craig Leres and Steven McCanne who were, at the time, working in the Lawrence Berkeley Laboratory Network Research Group. Distributed under the BSD license,[1] tcpdump is free software. Tcpdump works on most Unix-like operating systems: Linux, Solaris, BSD, Mac OS X, HP-UX and AIX among others. In those systems, tcpdump uses the libpcap library to capture packets. (Source: http://en.wikipedia.org/wiki/Tcpdump)<br><br>Login to your bubba server using SSH and when logged in do: | ||
<pre>su</pre> | <pre>su</pre> | ||
<br>Now you have root access and can install the program | <br>Now you have root access and can install the program | ||
<pre>apt-get install tcpdump</pre> | <pre>apt-get install tcpdump</pre> | ||
<br>Now you have a packet sniffer installed which is useful for troubleshooting. More information and examples can be found at: http://danielmiessler.com/study/tcpdump/<br> | <br>Now you have a packet sniffer installed which is useful for troubleshooting. More information and examples can be found at: http://danielmiessler.com/study/tcpdump/<br> | ||
Latest revision as of 22:40, 29 September 2010
Tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. It was originally written in 1987 by Van Jacobson, Craig Leres and Steven McCanne who were, at the time, working in the Lawrence Berkeley Laboratory Network Research Group. Distributed under the BSD license,[1] tcpdump is free software. Tcpdump works on most Unix-like operating systems: Linux, Solaris, BSD, Mac OS X, HP-UX and AIX among others. In those systems, tcpdump uses the libpcap library to capture packets. (Source: http://en.wikipedia.org/wiki/Tcpdump)
Login to your bubba server using SSH and when logged in do:
su
Now you have root access and can install the program
apt-get install tcpdump
Now you have a packet sniffer installed which is useful for troubleshooting. More information and examples can be found at: http://danielmiessler.com/study/tcpdump/