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The Mythryll Log

Category: Monitoring Tools

Old scripts (“Old Razor? – Old Face” – Sergeant Murtow, Lethal Weapon)

Posted on December 2, 2021

I was looking through my email this morning as someone needed to turn on and access a really old switch in a specific part of the network, but no one could remember the credentials. Resetting the switch would have been a big hustle in that specific area (it’s essentially a museum, the disruption would be…

Ansible playbooks for Nagios Installation on Ubuntu 18.04.4 LTS / 20.04 LTS

Posted on May 17, 2020May 21, 2020

Hello all, this is @mythryll , I hope everyone is staying safe! This is going to be a long one, so strap in and enjoy the ride (hopefully)! A little back story A few years back I had started a conversation with the great Michael Friedrich who was at the time working at Icinga (I…

Monitor VPN Users on Check Point Firewall with the help of Netmiko and Python, InfluxDB and Grafana

Posted on April 21, 2020April 26, 2020

Preface This post describes how I got to create Python scripts in order to graph the VPN user count on Check Point GAIA Gateways to Grafana, using InfluxDB as Time Series Database to store the data. The process had several byproducts, such as Python scripts for reading and writing data to CSV files, creating and…

Migrating from MRTG/RRD/CGI to Grafana/InfluxDB/Telegraf on Docker containers for Enterprise Network Performance Monitoring with SNMP – Part 2

Posted on January 19, 2020January 19, 2020

In the previous episode… In the previous part of this series of posts, I described how it came to be that our SNMP monitoring infrastructure based on MRTG/RRD/CGI had reached the end of its days and how I decided to use Grafana with InfluxDB and Telegraf to replace it. The last post stopped right before…

Migrating from MRTG/RRD/CGI to Grafana/InfluxDB/Telegraf on Docker containers for Enterprise Network Performance Monitoring with SNMP – Part 1

Posted on December 11, 2019January 19, 2020

(if you are looking for part2, it’s here) Introduction I like reading guides, not writing them (it takes too long for me). So this isn’t a guide, it’s more like an adventure tale, it’s a “I got out one day for a stroll and look what happened!”. I had no knowledge of Grafana, InfluxDB, Telegraf…

Ansible Playbook for upgrading Ubuntu based Nagios Server to latest version

Posted on August 29, 2018December 12, 2019

Use Ansible to upgrade your Nagios Server

Εγκατάσταση Nagios 4.1.0 σε Ubuntu Server 14.04.3 LTS με plugins, check_nrpe, check_esxi_hardware και nagiosgraph

Posted on August 19, 2015

Σήμερα έπιασα ξανά το θέμα του upgrade σε Nagios 4 και έμαθα ότι στις 18/8 (χθες) βγήκε το Nagios 4.1.0 stable. Ξεκίνησα (μετά από δοκιμή για upgrade) ένα clean install στον ubunagios03 με εγκατάσταση από την αρχή του Ubuntu Server 14.04.3 LTS και nagios core 4.1.0 & nagios plugins v.2.1.1 Πρώτα ενεργοποίησα το χρήστη root…

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Recent Posts

  • Old scripts (“Old Razor? – Old Face” – Sergeant Murtow, Lethal Weapon)
  • How to clean up tags in your malfunctioning TIG stack for SNMP monitoring – or chasing runaway tags with InfluxQL, grep and a Python script
  • Onboarding the network in Netbox – a series of talks with myself and a little story telling – Part2
  • Onboarding the network in Netbox – a series of talks with myself and a little story telling – Part 1
  • Ansible playbooks for Nagios Installation on Ubuntu 18.04.4 LTS / 20.04 LTS
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