Don't know about video courses, but Internet standards like DHCP are open and available on IETF.org. There are explanations on Wikipedia too. Also, if you're in

Don't know about video courses, but Internet standards like DHCP are open and available on IETF.org. There are explanations on Wikipedia too. Also, if you're into Linux the HOWTO section on tldp.org can also be a big help for more practical stuff.