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GNS3 couldn't run /usr/bin/dumpcap in child process: Permission Denied.

 ·  ☕ 1 min read  ·  🦉 admin

Ubuntu 16.04 LTS GNS3: Problem: couldn’t run /usr/bin/dumpcap in child process: Permission Denied.

Solution:

  • Enable non-root user to capture network traffic by reconfiguring wireshark.
gns3a@gns3A:~$ sudo dpkg-reconfigure wireshark-common 
  • Add wireshark group to the user that you want to start GNS3 program.
gns3a@gns3A:~$ sudo gpasswd -a $USER wireshark 
  • Logout and Login again.
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IT Engineer