Line-Rate Flow Capture to ELK Stack

Introduction In certain environments it is necessary to get flow data from different places in your network for compliance or security in general. Recently I ran across a situation in which the native flow gerenators within the Cisco Nexus platform were only able to do 1 in 1000 sampling due

Commonly Used OpenSSL Commands

Introduction Over the years I have had to do a lot of repetitive tasks in OpenSSL, and I've always had to hunt down what command I needed to use. So, I finally made a list of the most common use cases and commands, and now it's time to share. A

ELK For Network Operations

UPDATE Check out the latest version of this guide here. The updated article utilizes the latest version of the ELK stack on Centos 7. What is ELK? ELK is a powerful set of tools being used for log correlation and real-time analytics. This post will discuss the benefits of using