Professor Messer

There are many problems that could occur on a wired network. In this video, you’ll learn about some of the most common problems and how to troubleshoot them. << Previous Video: Command Line Tools Next: Wireless Network Troubleshooting >> On any network connection, whether you’re using fiber or copper, the signal will begin to degrade […]

As a network administrator, you’ll become very familiar with the command line. In this video, you’ll learn about some of the most popular command line tools. << Previous Video: Software Tools Next: Wired Network Troubleshooting >> As a network professional, you’ll do a lot of trouble shooting at the command line. In this video, we’ll

If you want to keep your network running efficiently, you’ll often use a common set of software tools. In this video, you’ll learn about protocol analyzers, port scanners, speed test sites, and more. << Previous Video: Hardware Tools Next: Command Line Tools >> If you need to troubleshoot network slowdowns or application traffic flows, then

Every network administrator needs a good toolkit. In this video, you’ll learn about some of the most common hardware tools to have handy. << Previous Video: Network Troubleshooting Methodology Next: Software Tools >> If you’re going to be working on networks, then you’re going to need a good set of crimpers. This will allow you

The process for troubleshooting a network problem can be challenging without the right process. In this video, you’ll learn a step-by-step method for troubleshooting all types of network issues. << Previous Video: Network Segmentation Next: Hardware Tools >> When you’re troubleshooting complex network problems, you may find that the resolution is not as obvious as

There are many issues that can cause problems with applications and services. In this video, you’ll learn about untrusted SSL certificates, exhausted DHCP scopes, unresponsive services, and much more. << Previous Video: Wireless Network Troubleshooting If your domain name services aren’t working, then you’re going to have a difficult time resolving an IP address from

Network segmentation can provide significant security benefits. In this video, you’ll learn about physical segmentation, logical segmentation, and the use of DMZs. << Previous Video: Switch Port Protection Next: Network Troubleshooting Methodology >> When someone is talking about segmenting the network, they’re usually talking about segmenting things into separate devices or perhaps separate VLANs or

If you manage switches, then you’ll need to understand the best way to secure your switched infrastructure. In this video, you’ll learn about Spanning Tree Protocol, BPDU guard, root guard, and more. << Previous Video: Mitigation Techniques Next: Network Segmentation >> At the MAC address level, there’s no calendars or any other way to tell

There are a number of ways to minimize the impact of a security event. In this video, you’ll learn about IPS signature management, file integrity monitoring, managing access control lists, and much more. << Previous Video: Device Hardening Next: Switch Port Protection >> There are a number of things you can do to prevent security

There are many different ways to harden devices from security exploits. In this video, you’ll learn about upgrading firmware, patch management, file hashing, and much more. << Previous Video: Vulnerabilities and Exploits Next: Mitigation Techniques >> As a network administrator, you’ll be connecting switches, routers, firewalls, and many other devices to the network. In this