The use case As a tinkerer, I really like putting things together, especially if they go on working on their own like little automatons. But when there is an actual need for something that these automatons can cover, that’s even better! In this case, after changing some parts of our configuration and monitoring tools arsenal…
Category: Professional
post that have to do about my work, which means Networks and Communications
Onboarding the network in Nautobot – a series of talks with myself and a little story telling – Part3
Is this really part 3? Well… no. Not exactly. The title would have been about Netbox but as you might have guessed, I am not using Netbox anymore. We migrated to Nautobot from Netbox 2.10.4 since summer 2021, and have been happily using it and developing on it ever since. After all this time, providing…
Ansible playbooks for Nagios Installation on Ubuntu 18.04.4 LTS / 20.04 LTS
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
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
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
(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…
Using netmiko with NTC-Templates to gather data into for DC migration – Produce cisco configuration commands from Excel file
One month ago, we were migrating our DC core from older Cisco Catalyst models to Nexus models in 2 different DCs, connected over WDM, a longtime plan to provide a better foundation for networking services in our environment (+OTV, MacSec, etc). One of the plan’s main ideas was to separate user and DC networks and…
Blog maintenance
I was forced to update my blog and delete a few old posts as I am preparing to post some work related (IT) material in twitter pointing here.Most deleted posts concern old work interests and World of Warcraft links.The material to be posted will be about Nagios, Ansible, Python, and Automation in general.
Copy & Paste with vim
These are the sources: http://stackoverflow.com/questions/4620672/copy-and-paste-content-from-one-file-to-another-file-in-vi http://vim.wikia.com/wiki/Cut/copy_and_paste_using_visual_selection http://www.tech-recipes.com/rx/219/copy-and-paste-text-with-vi-or-vim/ Since you already know how to cut/yank text, here are a few ideas for pasting it back into another file: Edit the first file, yanking the text you want. Then open your second file from within vi (:e /path/to/other/file) and paste it Open both files together in a…
vim search and replace commands
If you want to match something at the end of the line you need to use the $ character at the end of the string pattern. The following are taken from : http://www.linux.com/learn/tutorials/8255-vim-tips-the-basics-of-search-and-replace Let’s start by looking at searches and doing search and replace operations within Vim. You can do a search in normal mode…