When a company’s website goes down, IT staff rush to resolve the issue and try to get to its root cause. This is easier said than done, considering the hosting options available in today’s Internet-market. You can host services internally, use online providers, or use a combination of options that help dynamically load balance traffic workload. A provider of such services, … [Read more...]
Obtaining IP Addresses, Even from the Tor Network
Piotr Duszyński, a security consultant, recently revealed a method that could disclose a visitor’s real IP address despite traversing through the TOR network. This is a huge privacy issue; Tor was built with privacy in mind. There are environmental conditions that must be satisfied, however. Despite the inclusion of “Tor” in the headline, this threat expands past just using the … [Read more...]
How Data Moves Across a Network
Building on the Networking Basics article previously written and a high-level overview of How Servers Serve Content, I wanted to write about how data actually moves over a network. That is, what happens when a user on a network node communicates with another networked node. There are two main models that are accepted: the Open Systems Interconnection (OSI) model separates … [Read more...]
Self-Help Network Troubleshooting Guide
If you’ve ever had to troubleshoot a technical issue, surely you know that having pertinent information related to the issue is vital. This could include steps to reproduce the error, any captured logs detailing the issue at hand, or even steps taken attempting to (unsuccessfully) resolve the issue(s). With that being said, I will also say that there can be times of having too … [Read more...]
How Servers Serve Content
Computers seem to be virtually limitless in their abilities – they can send and receive digital information, serve content via many defined protocols, compute algorithms much faster than a human can, and even provide countless hours of fun and entertainment. One very common use of computers is indeed serving content to consumers, a technological concept known as client / server … [Read more...]
