Very good! I leave you with a document that will be of help to us as long as we want to verify that we have a program running on any computer in our organization. We will see the necessary steps to be able to monitor if a remote computer, whether Windows or Linux, has any process running, and alert us in case of its fall. In addition, if we are interested, we could monitor its CPU or RAM consumption., all this only through SNMP!
Continuing with documents of curious things we can do with a Raspberry Pi, Something very simple to achieve is for example to measure the electricity consumption of whatever we want, In this document we will see how to connect non-invasive current sensors to a Raspberry Pi and measure the cost of our home, since we will connect it to the electrical panel of our house! We will export the metrics to a MySQL database and then with Grafana we will create a dashboard where we can see in a very intuitive way what we spend on and how much!
Continuing with documents on Nagios or Centreon, Let's go with a post that may be in common use, above all, when we need to monitor something by SNMP and the Internet gurus have not developed a script that we need. We will see then, how to query over SNMP what a device might 'spit out'’ Thanks to SNMPWALK and then we will monitor it! And at the end of the document we'll look at how to monitor the traffic of any network device that has SNMP enabled as well!
In this document we will monitor interesting elements that we will obtain from our VMware vSphere-based virtual machines, centralizing in Nagios the checks we do to manage its values, Get alerts or generate graphs of your consumption. We will see, among other checks, in the VMs obtaining the values of their CPU Ready, CPU Wait, Memory Overhead, Memctl, Balloning, Write or read IOs…
Continuing a little with Citrix elements that we can monitor… what less than our NetScaler! In this document, we'll see how to monitor a Citrix NetScaler VPX virtual appliance that is currently the Gateway for my Citrix XenDesktop organization. We will monitor its basic consumption such as CPU through SNMP, Memory or disks, but also the connections, your network interfaces or certificates!
If in our environment we have OTRS as a management system and Nagios or Centreon as a monitoring system, we will be able to integrate them and do real wonders, In this first document we will see something very simple: How to monitor the queues we have in OTRS from Nagios or Centreon. And we will continue in the future with other types of integrations!
Very good! This document can be used by all of us who have a Remote Desktop Licensing service in our organization, It will always be good to know how many licenses we consume to analyze future needs or receive alerts in case there are few free licenses left. Therefore, if you have a service of this type in your organization, why not monitor your organization's RDP CAL licenses to avoid problems?
At last, Last document in this super interesting series! Where we can measure the SLA offered by our Business and the time it has been offering service, we will also see how to transfer this Business monitoring to interactive maps with NagVis; in addition to carrying out impact analysis on our Business, where we can analyze the critical points of our business!
What's up txabales!!! How do we usually find out that a DHCP server is down or a scope is full?? Thank you to our dear users, No? As the idea is that our users are the last to notice any problems in our organization (apart from the bosses)… we will take advantage of our monitoring facility based in Nagios or Centreon to control yet another critical point in an organization, DHCP Service!
Part 2! We're going to keep shaping this… Once you more or less have documented on paper or Excel (or however you prefer) this hierarchy of Services that we saw in Part 1 of our Business Service Monitoring, We will therefore proceed with the following, which will be the installation of the Plugin in Nagios, followed by its configuration already in Centreon to be able to use it!
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Windows Server – VMware vSphere – Citrix Virtual Apps & Desktops – Centreon
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