Unknown data link type -1
Using wireshark 3.2.3 on Ubuntu 20.04.
Reinstalled my PC from backup after a hard disk failure. Had to reinstall wireshark. Now I am getting "unknown data type -1" when I try to capture from my loopback. Running as regular user with on the wireshark group.
What does it mean?
Did you logout and login again?
Yes. A few times. It means that I have no permission to capture data on my loopback. I use the group wireshark. Doesn't it work? I have no problems using WS with a sudo...