This question already has an answer here:
Today I had to configure some CISCO switches & routers at school, and I used a USB to serial adapter. Unlike on Windows I didn't have to install any drivers; it was recognized immediately.
When I open puTTY through GUI and tried serial
/dev/ttyUSB0 I got the following error:
Unable to open connection to /dev/ttyUSB0 Unable to open serial port
I thought I'd give it a try with root permissions
sudo putty and it worked, but why!?
If I do have to give root permissions to puTTY what would be the way to do it? I read
gksudo is removed from 18.04 and running an app as
sudo <> is not recommended.
Thanks in advance!