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Information security is a broad field with many security concepts. In this video, you’ll learn about the states of data, digital certificates, certificate authorities, identify and access management (IAM), and much more. << Previous: Remote Access Next Video: Authentication >> In IT security there are a number of different topics to consider. And in this […]

Many network administrators are configuring switches and routers from a remote location. In this video, you’ll learn about SSH, API integration, consoles, jump boxes, and in-band and out-of-band management. << Previous: VPNs Next Video: Security Concepts >> If you’ve done anything in networking relating to switches, routers, firewalls, or other devices, then you’ve probably connected

Virtual Private Networks allow us to communicate securely over public networks. In this video, you’ll learn about client-to-site VPNs, clientless VPNs, and compare full VPN tunnels and split tunnels. << Previous: Time Protocols Next Video: Remote Access >> A VPN is a Virtual Private Network. That is a way of taking information that would normally

Time is an important metric for most networks. In this video, you’ll learn about the Network Time Protocol (NTP), Network Time Security (NTS), and Precision Time Protocol (PTP). << Previous: DNS Records Next Video: VPNs >> In this video we’re going to talk about NTP, or the Network Time Protocol. This is the protocol that

DNS configurations require a number of different record types. In this video, you’ll learn about DNS records for addresses, canonical names, mail services, and more. << Previous: An Overview of DNS Next Video: Time Protocols >> If you were to look at the configuration file of a DNS server, you would see a number of

Domain Name Services are a critical part of any network. In this video, you’ll learn about DNS, local name resolution, forward and reverse lookups, recursive queries, and securing DNS. << Previous: IPv6 and SLAAC Next Video: DNS Records >> One of the most common uses of DNS, or the Domain Name System, is to translate

Automatic addressing is part of the IPv6 standard. In this video, you’ll learn about SLAAC, Network Discovery Protocol (NDP), and automatic addressing of IPv6 devices. << Previous: Configuring DHCP Next Video: An Overview of DNS >> With IPv6, we’ve taken a number of techniques we’ve used with IPv4, and we’ve updated them for the modern

Configuring a DHCP server requires a number of different settings. In this video, you’ll learn about DHCP pool, address reservations, DHCP options, the lease process, and more. << Previous: DHCP Next Video: IPv6 and SLAAC >> In our previous video, we looked at the process of DHCP from the client’s perspective, but obviously there are

We rely on the Dynamic Host Configuration Protocol to automatically assign addresses to our network devices. In this video, you’ll learn about the DHCP process and how DHCP relay can be used to design a more efficient DHCP process. << Previous: Network Redundancy Next Video: Configuring DHCP >> On our modern networks, we’ve become so

Keeping systems running is an important part of any network design. In this video, you’ll learn about active-active configurations and active-passive configurations. << Previous: Disaster Recovery Next Video: DHCP >> Maintaining uptime and availability on the network can be a challenge. And in this video, we’ll look at different methods for providing that network redundancy.