Professor Messer Archives

We rely on NTP to synchronize the clocks on all of our network-connected devices. In this video, you’ll learn about NTP servers, NTP clients, and how to configure NTP options on your workstation. << Previous Video: Configuring DHCP Next: Copper Cabling >> All of the devices on our network have their own clock. This would […]

There are many options when configuring a DHCP server. In this video, you’ll learn about DHCP scopes, address allocation options, address reservations, and DHCP lease timers. << Previous Video: DHCP Addressing Overview Next: An Overview of NTP >> If you’ve been tasked with configuring a DHCP server, then you’re going to be very familiar with

We rely on DHCP for the automatic configuration of our network devices. In this video, you’ll learn about the four steps of the DHCP process and how a DHCP relay can provide flexibility with DHCP services. << Previous Video: DNS Record Types Next: Configuring DHCP >> We’ve now become very accustomed to having our IPv4

DNS uses many different resource record types for network name services. In this video, you’ll learn about the DNS forward lookup file and some of the most common DNS record types. << Previous Video: An Overview of DNS Next: DHCP Addressing Overview >> Whenever we access a domain name services server in order to gather

Domain Name Services provide an important conversion between FQDN and IP address. In this video, you’ll learn about the process that DNS uses to resolve a fully-qualified domain name to an IP address. << Previous Video: Cloud Services and Delivery Models Next: DNS Record Types >> Many people don’t realize just how much we take

The cloud has become an integrated part of today’s networks. In this video, you’ll learn about various cloud delivery models and how to manage cloud security policies. << Previous Video: Wireless Network Technologies Next: An Overview of DNS >> At this point, many of us have taken advantage of software as a service, or SaaS.

802.11 wireless network technologies are many and varied. In this video, you’ll learn about 802.11 frequency use, MIMO, MU-MIMO, power levels, antenna types, and more. << Previous Video: Cellular Network Standards Next: Cloud Services and Delivery Models >> There are a number of different technologies used to communicate over 802.11 networks. One big difference between

Cellular networks are complex technologies that have been made easy enough for everyone to use. In this video, you’ll learn about GSM, CDMA and LTE cellular technologies. << Previous Video: 802.11 Wireless Standards Next: Wireless Network Technologies >> We rely on cellular networks to provide most of our mobile communications, these days. We use our

There have been many 802.11 wireless standards through the years. In this video, you’ll learn about the differences between 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac. << Previous Video: Internet of Things Topologies Next: Cellular Network Standards >> Almost all of us have devices that use 802.11 wireless networks. It might be our mobile phones. It

We’re connecting an increasing number of devices to the Internet. These Internet of Things topologies are similar to traditional networks, but there are some important differences when compared to traditional networks. In this video, you’ll learn about some of the more popular IoT topologies, such as Z-Wave, ANT+, NFC, and more. << Previous Video: Common