Projects

CNS Monitoring System

2008–present

I built and continue to develop the monitoring system CNS uses to keep an eye on its own infrastructure as well as its clients' networks and servers.

In 2008 I deployed Nagios for CNS, complete with graphing, network device configuration archiving (RANCID) and SMS notifications via a GSM modem. Over time I extended monitoring to cover CNS clients’ infrastructure — laboratories, healthcare facilities, government offices and businesses. Since 2021 I have been migrating the system to Icinga 2.

checks for network devices, Windows and Linux servers, Veeam backups, disk arrays, UPS units, certificates, web applications, server room and freezer temperatures, and generators,
custom notification daemon NaNoMan, escalation policies, SMS gateway on MikroTik,
custom plugins in Python and PowerShell, event handlers for automatic service restarts,
NagVis dashboards for individual departments and a large-screen display driven by Raspberry Pi,
Icinga 2 with Director, Grafana, single sign-on via Kerberos/LDAP and satellite nodes in clients’ cloud environments,
integration between the monitoring system and the Alvao service desk (ATTC tool).