How to draw on linux desktop
It's very easy and usefull when you are sharing your desktop.
Just download Draw On You Screen, a gnome extension, and follow the readme steps
I tested it in Ubuntu 18.04 and it works fine
Exception: Could not find a default OpenFlow controller in Mininet
If you try to run a mininet script like this , maybe you will get this problem if you are under Ubuntu. Exception: Could not find a default OpenFlow controller This is trigger because your system don't find a default controller . To enable it just add the first line and add the controller argument to net variable like the second line: from mininet.node import OVSController net = Mininet(topo=topo,host=CPULimitedHost, link=TCLink,controller = OVSController) Now, you will get the following error: c0 Cannot find required executable ovs-controller. Please make sure that it is installed and available in your $PATH: (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin) ovs-controller is a legacy name. You need to be sure that you has it. sudo apt-get install openvswitch-testcontroller sudo cp /usr/bin/ovs-testcontroller /usr/bin/ovs-controller If you run it again, you should kill ovs-testcontroller first to avoid this: Exception: Please shut d
Comments
Post a Comment