A global monitoring and alerting system, cheap and simple, introduction

In this series of posts I will describe a monitoring system that is simple to deploy and seems to work reliably. The parts are :

  • PKI
  • Central syslog server, with encrypted communications
  • Global nagios setup
  • Log monitoring and real time alerting
  • The whole thing managed by puppet, so that adding new servers doesn’t take any work

What will make this of interest is that I will describe puppet tricks to limit human interaction to almost nothing.

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