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I downloaded Wireshark from the Ubuntu 11.10 software center and when I start it and want to select default interface for capture in the list of interfaces are blank. I can't select default interface. Please help me.

hingev
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    Try running wireshark by `gksudo wireshark`, you will need *sudo* permissions to capture packets on your network interface. – Nitin Venkatesh Feb 19 '12 at 08:11
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    The answers here are more dangerous than the standard "sudo dpkg-reconfigure wireshark-common" approach, which is documented in this question: [How do I run WireShark, with root-privileges? - Ask Ubuntu](http://askubuntu.com/questions/74059/how-do-i-run-wireshark-with-root-privileges). This question is essentially a duplicate of that one. – nealmcb Jan 15 '13 at 23:50

2 Answers2

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Run wireshark with sudo priveleges - gksudo wireshark. You will need super-user permission to capture packets from your network interface.

Nitin Venkatesh
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  • No problem :) Most welcome :) – Nitin Venkatesh Feb 19 '12 at 08:41
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    This is unnecessarily dangerous and problematic, because there are far more exploitable bugs when running the full gui as root, and configuration issues can crop up when a gui program runs as root. See the dpkg-reconfigure solution at [How do I run WireShark, with root-privileges? - Ask Ubuntu](http://askubuntu.com/questions/74059/how-do-i-run-wireshark-with-root-privileges) for a much better option – nealmcb Jan 16 '13 at 00:01
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    I just saw that and have also voted to close this question off as a duplicate of that one. Thanks for pointing this out @nealmcb :) – Nitin Venkatesh Jan 16 '13 at 18:53
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This command string worked in my case. I don't run anything as root if I don't have to.

sudo chgrp your username /usr/bin/dumpcap
sudo chmod 750 /usr/bin/dumpcap
sudo setcap cap_net_raw,cap_net_admin+eip /usr/bin/dumpcap
Oyibo
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Mack
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  • Super helpful because this relates to anything using libpcap, not just dumpcap + wireshark. Got me out of a pinch, thanks! – Brannon Sep 24 '15 at 15:58