关于Wireshark出现：Couldn't run /usr/sbin/dumpcap in child process: Permission denied Are you a member o

关于Wireshark出现：Couldn’t run /usr/sbin/dumpcap in child process: Permission denied Are you a member of the ‘wireshark’ group? Try running ‘usermod -a -G wireshark your_username’ as root.

我在第一次使用Wireshark时，发现网卡列表为空，当手动输入lo后，开始后出现“ Couldn’t run /usr/sbin/dumpcap in child process: Permission denied Are you a member of the ‘wireshark’ group? Try running ‘usermod -a -G wireshark your_username’ as root.”后，就按上面提示的，直接运行 usermod -a -G wireshark $(whoami) 后，重启wireshark后，发现还是无法使用，在网上查了好久才发现，需要先将当前用户注销，然后再重新登录就可以了。所以解决方法就是：运行 usermod -a -G wireshark $(whoami) ，然后将当前 X window 用户注销，然后重新登录，此问题就解决了。