Plus we turn our eye to hardware and get excited about the latest Ryzen line from AMD.

Links:

• Third parties confirm AMD’s outstanding Ryzen 3000 numbers | Ars Technica — AMD debuted its new Ryzen 3000 desktop CPU line a few weeks ago at E3, and it looked fantastic. For the first time in 20 years, it looked like AMD could go head to head with Intel's desktop CPU line-up across the board. The question: would independent, third-party testing back up AMD's assertions?
• The Internet broke today: Facebook, Verizon, and more see major outages | Ars Technica — Last week, Verizon caused a major BGP misroute that took large chunks of the Internet, including CDN company Cloudflare, partially down for a day. This week, the rest of the Internet has apparently asked Verizon to hold its beer.
• It was a really bad month for the internet | TechCrunch — In the past month there were several major internet outages affecting millions of users across the world. Sites buckled, services broke, images wouldn’t load, direct messages ground to a halt and calendars and email were unavailable for hours at a time.
• Cloudflare outage caused by bad software deploy (updated) — For about 30 minutes today, visitors to Cloudflare sites received 502 errors caused by a massive spike in CPU utilization on our network. This CPU spike was caused by a bad software deploy that was rolled back.
• How Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Today — Today at 10:30UTC, the Internet had a small heart attack. A small company in Northern Pennsylvania became a preferred path of many Internet routes through Verizon (AS701), a major Internet transit provider.
• Getting started | Prometheus — This guide is a "Hello World"-style tutorial which shows how to install, configure, and use Prometheus in a simple example setup.
• prometheus/node_exporter — Prometheus exporter for hardware and OS metrics exposed by *NIX kernels, written in Go with pluggable metric collectors.
• Using netdata with Prometheus — Prometheus is a distributed monitoring system which offers a very simple setup along with a robust data model. Recently netdata added support for Prometheus.
• prometheus/nagios_plugins — Nagios plugin for alerting on prometheus query results.
• RobustPerception/nrpe_exporter — The NRPE exporter exposes metrics on commands sent to a running NRPE daemon.
• m-lab/prometheus-nagios-exporter — The Prometheus Nagios exporter reads status and performance data from nagios plugins via the MK Livestatus Nagios plugin and publishes this in a form that can be scrapped by Prometheus.
• Comparison to alternatives | Prometheus — Prometheus is a full monitoring and trending system that includes built-in and active scraping, storing, querying, graphing, and alerting based on time series data.
• Quality server monitoring solution using NetData/Prometheus/Grafana — I’m going to quickly show you how to install both netdata and Prometheus on the client and server. We can then use grafana pointed at Prometheus to obtain long-term metrics netdata offers.
• Monitoring stack by using Grafana + Prometheus + Netdata — This monitoring stack you can monitoring in real-time by Netdata and see the history by using Grafana.
• Monitoring Agent · NCPA — New to NCPA? See some of the awesome features present in the Web GUI and API, available on any operating system.
• Nagios 101: Understanding the Fundamentals - Nagios
• Nagios Documentation

Why you should monitor, what you should monitor, the basics of Nagios, the biggest drawbacks of Nagios, its alternatives, and our lessons learned from the trenches.

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Links:

• Why Bother with Server Monitoring? — Once a network or server has been installed, how do you know it is working as it should? Just like a car or any appliance, it may need maintenance or parts replaced to keep it in top working order. Network and server monitoring allows the Network Administrator to see how hardware and software are performing. We can look for certain signs or warnings that the system is not working efficiently and take action to fix things to prevent system degradation or failure.
• What is Nagios? — Monitoring of network services such as SMTP, POP2, HTTP, NNTP, ICMP, SNMP, FTP, SSH.
• A Real Example Of Nagios Monitoring — There are two major problems the monitoring solves: alerting and trending. Alerting is to notify the person in charge about a major event like service failing to work. Trending is to track the change of something over time – disk or memory usage, replication lag etc.
• graphios — A program to send nagios perf data to graphite (carbon) / statsd / librato / influxdb
• Sensu — Sensu’s platform is the solution to the monitoring problems you’re facing today, and the right foundation for your organization tomorrow. From bare metal to Kubernetes—get complete visibility across every system, every protocol, every time.
• Sensu: Finally the Nagios Replacement I Have Been Looking For! – Chariot Solutions
• Icinga 2 — With the RESTful API of Icinga 2 you can update your configurations on the fly or show live information about current problems on your custom dashboards. You can process check results from third party tools or tell the Core to run actions interactively. The interface is secured with SSL. Access control can be configured fine grained and per user.
• Nagios Vs. Icinga: the real story of one of the most heated forks in free software
• Phill Barber's Blog: Nagios vs Sensu vs Icinga2
• Prometheus — Power your metrics and alerting with a leading open-source monitoring solution.
• nagios - Docker Hub — Nagios Core with Nagiosgraph, check_nrpe, custom checks & XMPP Notifications
• Previous TechSNAP Coverage: Keeping it Up | TechSNAP 20
• Dax was inspired by last weeks episode