Why do I hate Nagios?

You either love or hate Nagios, there are no intermediate opinions when you use this application. I am definitely uncomfortable with Nagios. While I'm not a radical SCOM guy, because I like other free (as in freedom) monitoring systems: Zabbix, Sensu even PandoraFMS, I really hate Nagios.
And if you want there are a lot of very good SaaS alternatives too, such as New Relic, Datadog, Monits, etc.

Nagios reminds me of the good old times, when we only had a few machines in our data centers and three or four services and they were easy to manage and monitor.  Do you remember big brother monitoring software? It was quite popular 15 years ago and it was very simple because our projects were very simple comparing with our projects nowadays.

ELK ( Elastic Search, Logstash, Kibana) for Windows and Linux logs for easy data mining

Recently I have been testing ELK (Elasticsearch, Logstash, Kibana) for the visualisation and data mining with Syslog, Windows Event Viewer, Apache, SQUID and IIS logs.

SCOM 2012 - Create alert / monitor based on Windows event ( Administrator login alert )

Today, our customer asks us how we can know when the Administrator has logon via terminal server on Windows Server on their Domain.
The answer is with SCOM, using the event alert feature.
When you do a login in Windows 2008 or higher and the audit is running an event with id 4624  is created in the security log of the machine.
So first step to create the alert / monitor is to enable the audit.
You have to add new group policy with the audit enabled in the OU of the computers that you want to monitor, in this image you can see highlighted what you need.