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Accepted
Mohammad Reza Rezwani
Asked: 2014-04-25 11:33:16 +0800 CST

running wireshark "Lua: Error during loading"

  • 772

By running wireshark in 14.04 I got this error What should I do to solve this?

Lua: Error during loading: [string "/usr/share/wireshark/init.lua"]:46: dofile has been disabled due to running Wireshark as superuser. See http://wiki.wireshark.org/CaptureSetup/CapturePrivileges for help in running Wireshark as an unprivileged user.

wireshark

5 Answers

  1. Best Answer

    That is because (I presume) you are running wireshark as root

    From the link you were given in the message:

    You need to run Wireshark or TShark on an account with sufficient privileges to capture, or need to give the account on which you're running Wireshark or TShark sufficient privileges to capture. The way this is done differs from operating system to operating system.

    To be secure (at least in a way), it is recommended that even an administrator should always run in an account with (limited) user privileges, and only start processes that really need the administrator privileges. The Security page provides explanations why this is a good idea.

    Setting network privileges for dumpcap

    1. Ensure your linux kernel and filesystem supports File Capabilities and also you have installed necessary tools.

    2. "setcap 'CAP_NET_RAW+eip CAP_NET_ADMIN+eip' /usr/bin/dumpcap"

    3. Start Wireshark as non-root and ensure you see the list of interfaces and can do live capture.

    so ...

    sudo setcap 'CAP_NET_RAW+eip CAP_NET_ADMIN+eip' /usr/bin/dumpcap

    don't forget to add the user to the wireshark group 

    sudo usermod -aG wireshark $USER

    and (!) logo-off and log-on again. Then run wireshark as a non-root user.

    • 13

  2. I found a simple fix for this.

    1. Go to usr/share/wireshark.
    2. Open init.lua with a text editor.
    3. Change disable_lua = false to disable_lua = true.
    • 2

  3. That is because you didn't add user to wireshark group, So:

    sudo dpkg-reconfigure wireshark-common

    Say YES to the message box.This adds a wireshark group.Then add user to the group by typing

    sudo adduser $USER wireshark

    Then restart your machine and open wireshark.

    Run 

    wireshark

    and it works good luck ;)

    by @Thusitha Sumanadasa

    • 1

  4. I am using Mint (based on Ubuntu), in my case, it's the location of the output file caused the issue, when I change the output file to under /tmp/, then the issue is solved.

    e.g

    • tshark -i wlp7s0 -w /tmp/a.pcap
    • 0

  5. Run the following command to open /usr/share/wireshark/init.lua in a text editor:

    nano /usr/share/wireshark/init.lua

    There you'll see a line similar to this:

     enable_lua = true

    Make it look like

     enable_lua = false

    Press Ctrl + X to save and exit.

    Wireshark is ready to use!

    • 0