Install tcpdump under Ubuntu and use

Because of the need to test an HTTP protocol in Linux, use the Wireshark grab software--tcpdump under Linux. The specific installation process is as follows:

1. Download online for Libpcap and tcpdump

http://www.tcpdump.org/

2. Installation of C-compiler required package: Apt-get Install Build-essential

3. Pre-installation of Libpcap: Apt-get install flex,apt-get Install Bison

4. Install Libpcap.

The use of tcpdump must have this library.

Tar XVFZ libpcap-1.2.1.tar.gz/Decompression

Run into the file directory after decompression./configure//Generate Makefile File

Make//Compile

Make install//installation library files are installed by default in the directory/usr/lib, and header files are installed by default in/usr/include

3. Install Tcpdump

Tar XVFZ tcpdump.4.2.1.tar.gz/Decompression

Run into the file directory after decompression./configure//Generate Makefile File

Make//Compile

Make install//installation library files are installed by default in the directory/usr/lib, and header files are installed by default in/usr/include

Test for successful Installation: command line input tcpdump has network information displayed.

Problems that you may encounter:

1. #tcpdump

#tcpdump: no suitable device found

Reason: Network monitoring requires root permission, switch to root user can be used normally