A couple days ago I was need to see how the RTMP streaming protocol works. I decided to use Wireshark which is an awesome tool to analyze network traffic with nice user interface and live capturing behavior powered with filtering options.
First, you need to install it. I use Linux Mint which provides Wireshark from repository:
$ sudo apt-get install wireshark -y
This package provides dumpcap utility to capture and dump packets. In Debian and compatible distros such as LMDE it does not allow to use the utility for non-root users by default. You may see the warning box after Wireshark start in this case:
In order to change this I did the following:
Run the configuration script wizard for the package and answered Yes to allow usage for non-superusers:
$ sudo dpkg-reconfigure wireshark-common
If you get this warning after a new capture start, you should add your user to the wireshark group:
by doing the following:
$ sudo gpasswd -a <user> wireshark
After logging out and logging in I was able to use Wireshark.
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