Do not run wireshark as user "root"!
Read some documentations about wireshark. Your problem isn't a Knoppix problem.
When I launch wireshark(from k-menu..run, or from the command line) it loads but doesn't list interfaces unless I do sudo wireshark or I suppose if I do su then wireshark. That's fine.
But sudo wireshark or su<ENTER>wireshark<ENTER> isn't working.
It worked yesterday but now when I try, I get this error
knoppix@Microknoppix:~$ su root
root@Microknoppix:/home/knoppix# wireshark
No protocol specified
(wireshark:4986): Gtk-WARNING **: cannot open display: :0
root@Microknoppix:/home/knoppix# su knoppix
knoppix@Microknoppix:~$ sudo wireshark
No protocol specified
(wireshark:503: Gtk-WARNING **: cannot open display: :0
knoppix@Microknoppix:~$
Do not run wireshark as user "root"!
Read some documentations about wireshark. Your problem isn't a Knoppix problem.
Thanks. I got it to work since some days back. For the record it was most likely this solution that I used
http://ask.wireshark.org/questions/7...erfaces-listed
$ sudo apt-get install wireshark
$ sudo dpkg-reconfigure wireshark-common
$ sudo usermod -a -G wireshark $USER
$ sudo reboot
IBM 8203 E4A p520 Server 8203-E4A 4.2GHz 2-Core POWER6 32GB RAM / NO HDD USED
$99.99
IBM Power S822 12-Bay Server System Power8 Core 3.42Ghz DVD-Rom Drive 64GB No HD
$399.99
$16000.00
IBM System x3250 M4 Server Intel Xeon E3-1220 3.10GHz 8GB RAM No HDDs
$49.74
IBM Power 720 POWER7 00E6516 3.6GHz CPU 64GB RAM Server
$209.98
IBM Power 740 8205-E6C Express 8-SFF Power7 3.55GHz CPU 64GB RAM *No HDD* Server
$191.99
IBM 7944AC1 System x3550 M3 Server 1*Intel Xeon X5650 2.67GHz 4GB SEE NOTES
$26.97
IBM System x3550 M4 Server 2 x Intel Xeon E5-2609 36GB RAM No HDDs
$68.84
IBM Power S822 8284-22A 2.5" 12-Bay 64GB 2X 00ND478 2X 00E2865 *READ*
$599.99
IBM Lenovo X3650 M5 2U 8x 2.5” CTO Rack Server – 2x HS, 2x 750W
$199.00