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!
Another critical item that we will monitor will be the status of our respectable Active Directory, although we know that we will have him in cotton wool and we will pamper him, because Nagios or Centreon will also monitor it. Thanks to a script we will test your health on a scheduled basis, monitoring its status at all times, as well as that of the Domain Controllers, Therefore, another thing that we will get out of our heads and an automated system will do it for us, And if it fails… He warns us!
Well, Well… I wanted to start with this type of posts and let's see how far we can go with our Nagios!! In a series of 3 documents we will see how to measure the SLA offered by different layers of our organization. We will not only use Nagios to monitor our Infrastructure Layer, we can scale by leveraging this foundation and monitor your Company's Operational Services, This is achieved by interrelating the infrastructure services already monitored with departmental needs, even monitoring the Business Service provided by your company.
Well, Well! Another of the wonders that we can do with Nagios or Centreon is… the possibility of monitoring vulnerabilities in our computers! How great, truth?? We will rely on OpenVAS, We will use the checks we have to centralize them from a single console. We will be able to know how many vulnerabilities our servers put at risk and analyze their evolution with the graphs and of course receive alerts!
Today we will see a great utility that we can use to perform security analysis on our infrastructure, what less than from time to time to know how many vulnerabilities we have to be somewhat safer in the face of a virus attack, Trojan or Ramon ware on duty. In this document we will install OpenVAS 9 on a Debian machine 9 Stretch and we'll look at a basic use to get a report, in a future document we will integrate it with… Nagios!
Very good! If you feel like drawing and taking your monitoring to a new dimension, This is your document! With NagVis we can have fully customized real-time status maps! We will design maps that help us detect problems, to document our platform, Interconnectivity maps, both LAN and WAN… maps that we will make with Visio or PhotoShop and we will easily make them come to life!
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Windows Server – VMware vSphere – Citrix Virtual Apps & Desktops – Centreon
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