This guest post was written by Karine Margaryan of OpsGenie. In today’s constantly growing and highly competitive ecommerce market, monitoring website performance, health, and availability is imperative. Every millisecond counts when you run an ecommerce, ebanking, eticketing, or similar website — and user experience principles show that timing is one of the…
Let’s start by going back in time to the 1980s. This was when one of the most widely used protocols on the Internet – DNS –was developed. In case you are new to DNS or need a refresher, take a look at this detailed post on DNS before reading further. DNS…
I’m not a developer, nor am I in operations, but I love attending DevOpsDays. Many of the attendees are local, there is diversity in the speakers and attendees, and the format provides a way for everybody to contribute to a single track and many open space sessions. Last week, I…
Paul The Octopus was known as an animal oracle who could predict the result of a football match. He made accurate predictions for the matches played in the 2010 FIFA World Cup. What if a browser could do the same thing? What if it anticipated the next page that the user…
A Man in the Middle attack, or MITM, is a situation wherein a malicious entity can read/write data that is being transmitted between two or more systems (in most cases, between you and the website that you are surfing). MITMs are common in China, thanks to the “Great Cannon.” The…
There’s a lot of buzz around the speed index metric, but what exactly is this metric and how is it calculated? Even more so, why do we need a new metric when there are so many already on the plate? This article gives you detailed answers to these questions. What…
Websites are no longer just simple HTML pages with static content—they’ve evolved into a dynamic interface with features and content that are updated regularly. Website administrators use different techniques to ensure the user is viewing the latest version of the page or content. When new features are being added to…
A lot has been written and discussed about Domain Name System (DNS) in the past few days. The DDoS attacks on one of the major managed DNS Providers a while ago just made us all take DNS issues seriously once again. So why so much emphasis on getting DNS Right?…
Any IT professional who has been part of a DevOps team understands that firefighting is a major part of your job description. When everything falls apart, you’re right in the thick of it trying to get to the root of the problem to fix it. This can be a very…
Written by Chris Chandler, Network Operations Center Director at Dyn Within most technical operations environments, you’ll find some form of incident response plan. These procedures are used to manage and resolve an incident as well as to communicate with customers when issues arise. At Dyn, we’ve evolved a philosophy around…
