Michael Wadman

My thoughts and experiences with all things network

Viewing LibreNMS data in Grafana

Using RRDReST as a Grafana data source

LibreNMS is a great network device monitoring system, and Grafana is a wonderful tool for visualising and alerting on data from multiple sources. Both are great examples of open-source software t...

Resolving my DNS issues - Disabling systemd-resolved on Ubuntu 18.04

Disabling systemd-resolved

The below snippet from my ~/.bash_aliases should illustrate my feelings towards systemd-resolved: $ grep resolved ~/.bash_aliases alias fuck-resolved='sudo systemctl restart systemd-resolved' ...

OpenStack Lab Network - Deployment Preparation

Preparing hosts for OpenStack-Ansible to be run

This post is the tenth in a series that plans to document my progress through installing and configuring a small OpenStack Lab. For other posts in this series, see the overview section of the in...

OpenStack Lab Network - Host Routing

Configuring OSPF and BGP on OpenStack hosts

This post is the ninth in a series that plans to document my progress through installing and configuring a small OpenStack Lab. For other posts in this series, see the overview section of the in...

OpenStack Lab Network - Host Network Interfaces

Configuring network interfaces on OpenStack hosts

This post is the eighth in a series that plans to document my progress through installing and configuring a small OpenStack Lab. For other posts in this series, see the overview section of the i...