Use these links to get Davids high demand courses for free:
Python 3 for Network Engineers:
https://www.udemy.com/course/python-network-programming-for-network-engineers-python-3/?couponCode=DBPYTHONMAY
Linux for Network Engineers:
https://www.udemy.com/course/linux-for-network-engineers-practical-linux-with-gns3/?couponCode=DAVIDYOUTUBEMAY
SDN and OpenFlow:
https://www.udemy.com/course/sdn-nfv-whitebox-switching-and-openflow-introduction/?couponCode=DBSDNMAY
Already shared!
Python 3 for Network Engineers:
http://bestblackhatforum.com/Thread-GET-Python-Network-Programming-for-Network-Engineers-Python-3-11-5-hours?pid=3053385&highlight=%22python-network-programming-for-network-engineers-python-3%22#pid3053385
Linux for Network Engineers:
http://bestblackhatforum.com/Thread-GET-Linux-for-Network-Engineers-Practical-Linux-with-GNS3-10-5-hours?pid=3053384&highlight=%22linux-for-network-engineers-practical-linux-with-gns3%22#pid3053384
SDN and OpenFlow:
http://bestblackhatforum.com/Thread-F4LT-SDN-NFV-Whitebox-switching-and-OpenFlow-Intro-2017-Updates?pid=3053383&highlight=%22sdn-nfv-whitebox-switching-and-openflow-introduction%22#pid3053383
Please search before post to avoid duplicate threads!
Sorry I was on the go and posted fast, just trying to help out, will check next time
[quote='leejiacheng1' pid='3053849' dateline='1589438305']
Already shared!
Python 3 for Network Engineers:
http://bestblackhatforum.com/Thread-GET-Python-Network-Programming-for-Network-Engineers-Python-3-11-5-hours?pid=3053385&highlight=%22python-network-programming-for-network-engineers-python-3%22#pid3053385
Linux for Network Engineers:
http://bestblackhatforum.com/Thread-GET-Linux-for-Network-Engineers-Practical-Linux-with-GNS3-10-5-hours?pid=3053384&highlight=%22linux-for-network-engineers-practical-linux-with-gns3%22#pid3053384
SDN and OpenFlow:
http://bestblackhatforum.com/Thread-F4LT-SDN-NFV-Whitebox-switching-and-OpenFlow-Intro-2017-Updates?pid=3053383&highlight=%22sdn-nfv-whitebox-switching-and-openflow-introduction%22#pid3053383
Please search before post to avoid duplicate threads!
[/quote]
You are welcome to contribute the courses for members here. I also made the mistakes same like you at the beginning but got the help from members here to point out. Cheers!