DNS, the old standby of name resolution protocols, has been with us for a long time and will be for a long time to come. But like any “old standby” protocol, DNS has some imperfections. Like many early internet protocols, DNS was designed with an almost total lack of security. Finding an IP address via … Read more DNS Over HTTPS: Why, How, When, and What Is It, Exactly?
Distributed denial-of-service (DDoS) attacks are increasingly becoming a problem for global companies that have a significant portion of their business online. Knowing how to stop a DDoS attack is vitally important, especially considering that it can cost a business significantly in lost revenue. This might mean employing protection tools — my personal pick is Security … Read more How to Stop, Prevent, and Protect Yourself from a DDoS Attack
SAP security is a technical module that works within SAP systems to allow access where it’s needed and prevent access where it’s not. Establishing good internal security and access processes is a vital part of helping ensure your SAP system is protected and will function well. Protecting against external threats is important, but internal threats … Read more Introduction to SAP: Everything Beginners Need to Know about SAP Security
Your computer’s hard drive is one of the most important components of your machine. Without it, you can’t run an operating system or keep any data. And if it dies unexpectedly, you could end up with massive data loss if you haven’t created a backup (and even then, backups can become outdated). That’s why it’s … Read more How to Check Hard Drive Health
As network downtime becomes increasingly expensive, IT departments must prioritize Wi-Fi analysis and invest in the best Wi-Fi analyzer to gauge performance, strengthen security, and prevent failures. There’s no denying it—networking has simultaneously become both more complex and more critical to business operations and everyday functioning. Early networks consisted of devices connected on a single … Read more 7 Best Wi-Fi Analyzers and Free Wireless Scanners
It’s no question that bottlenecks, downtime, and other common network performance issues can vastly affect the end-user experience and put productivity on hold, ultimately cutting into your company’s bottom line. Getting to the root cause of performance problems is a top priority for nearly every sysadmin. This is where packet sniffers, also known as network … Read more Best 10 Packet Sniffer and Capture Tools
You’re likely familiar with the concept of a “wide area network,” or WAN. But just to refresh, WANs are simply a type of network spanning a large geographical location. Businesses use these types of networks to transfer information from office to office, between staff and clients, or to work with suppliers. In my experience, businesses … Read more WAN Optimization Guide
Network troubleshooting is a tricky process, and even if you’ve done it many times before, problems can arise in new ways anytime the network changes, a new device is added, or devices interact in a new way. Figuring out exactly where in the network the problem is and how to fix it can be difficult … Read more Best Network Troubleshooting Tools
When you’re managing a large network, it can be hard to keep on top of the many various components. When something stops working, troubleshooting needs to be done as quickly as possible before the problem affects your end users—and with a complex network, the troubleshooting process can take a while. The last thing you want … Read more How Do Sysadmins Monitor Network Traffic? Network Monitoring Best Practices
The multi-cloud approach to modern IT means workloads—whether virtual machines, containers, or minimal applications—can be located on any one of multiple independent infrastructures; whether running simultaneously for fault-tolerance or when being moved between these. In a modern IT deployment, workloads can (and will) regularly move between cloud and onsite deployments, whether for price, maintenance, latency, or … Read more Exploring the Use of DNS in Multi-Cloud Environments