Kentik Blog

eBPF is a powerful technical framework to see every interaction between an application and the Linux kernel it relies on. eBPF allows us to get granular visibility into network activity, resource utilization, file access, and much more. It has become a primary method for observability of our applications on premises and in the cloud. In this post, we’ll explore in-depth how eBPF works, its use cases, and how we can use it today specifically for container monitoring.

Resiliency is a network’s ability to recover and maintain its performance despite failures or disruptions, and redundancy is the duplication of critical components or functions to ensure continuous operation in case of failure. But how do the two concepts interact? Is doubling up on capacity and devices always needed to keep the service levels up?

Under the waves at the bottom of the Earth’s oceans are almost 1.5 million kilometers of submarine fiber optic cables. Going unnoticed by most everyone in the world, these cables underpin the entire global internet and our modern information age. In this post, Phil Gervasi explains the technology, politics, environmental impact, and economics of submarine telecommunications cables.

What does it mean to build a successful networking team? Is it hiring a team of CCIEs? Is it making sure candidates know public cloud inside and out? Or maybe it’s making sure candidates have only the most sophisticated project experience on their resume. In this post, we’ll discuss what a successful networking team looks like and what characteristics we should look for in candidates.

As networks become distributed and virtualized, the points at which they can be made vulnerable, or their threat surface, expands dramatically. Learn best practices for preventing, detecting, and mitigating the impact of cyberthreats.

Today’s enterprise WAN isn’t what it used to be. These days, a conversation about the WAN is a conversation about cloud connectivity. SD-WAN and the latest network overlays are less about big iron and branch-to-branch connectivity, and more about getting you access to your resources in the cloud. Read Phil’s thoughts about what brought us here.

When coupled with a network observability platform, device telemetry provides network engineers and operators critical insight into cost, performance, reliability, and security. Learn how to create actionable results with device telemetry in our new article.

In the final entry of the Data Gravity series, Ted Turner outlines concrete examples of how network observability solves complex issues for scaling enterprises.

A cornerstone of network observability is the ability to ask any question of your network. In this post, we’ll look at the Kentik Data Explorer, the interface between an engineer and the vast database of telemetry within the Kentik platform. With the Data Explorer, an engineer can very quickly parse and filter the database in any manner and get back the results in almost any form.

In this article, Doug Madory uncovers the little-known “Russification” of Ukrainian IP addresses — a phenomenon that complicates the task of internet measurement and impacts Ukrainians connecting to the internet using IP addresses suddenly considered Russian.