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
Cisco 2901/K9-V06 Integrated Services Gigabit Voice Router
$69.99
Cisco Catalyst 3650 48-Port Managed PoE+ Gigabit Switch WS-C3650-48FS-E
$55.99
Cisco WS-C3850-48P-L 48-Port Gigabit 3850 PoE Switch w/ 715W+ C3850-NM-4-1G Mod
$83.00
Cisco Catalyst 3850 48 PoE+ 48-Port Gigabit Managed Switch WS-C3850-48F-E
$150.00
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$38.99
Cisco Catalyst WS-C2960-48TT-L V02 48 Port Fast Ethernet Switch
$34.00
Cisco WS-C4948-10GE-S 4948-10GE 48 Port Gigabit +10GB Switch w single AC 15.0 OS
$99.99
Cisco CBS350-24FP-4G 28 Port PoE Managed Ethernet Switch
$319.99
Cisco C9300-48 48 Port Switch Dual PSU W/C9300-NM-8X P/N: C9300-48U-A Tested
$799.99
UNCLAIMED Cisco Meraki MS120-24P-HW - 24Ports Ethernet PoE Switch Same Day Ship
$315.00