credativ® Blog
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Category: HowTos
21 December 2018
Azure Import Module for IcingaWeb2 Director
The migration of IT landscapes to cloud environments is common today. However, the question often remains how to monitor these newly created infrastructures and react to failures. For traditional infrastructure, monitoring tools such as Icinga are used. These tools are often deployed using configuration management methods, such as Ansible or Puppet. In cloud environments, this […]
30 May 2018
RabbitMQ - Message Oriented Middleware (MOM)
The message broker RabbitMQ is highly popular in business environments. Our customers often use the software to bridge different systems, departments, or data pools. Similarly, a message broker like RabbitMQ can be used to absorb short-term load peaks and pass them on normalized to backend systems. Operating the Erlang-written message broker is straightforward to seamless […]
10 January 2017
Network Virtualization with VXLAN and Linux
VXLAN stands for “Virtual eXtensible Local Area Network”. Standardized in RFC 7348 in August 2014, VXLAN is also available today as a virtual network interface in current Linux kernels. But what is VXLAN? What is VXLAN? When one reads the keywords “Virtual” and “LAN”, most rightly think of VLAN. Here, a large physical network is […]
10 August 2015
[Howto] Icinga2 with Graphite and Grafana on Debian
In this blog, we describe the integration of Icinga2 into Graphite and Grafana on Debian. What is Graphite Graphite stores performance data over a configurable period. Services can send metrics to Graphite via a defined interface, which are then stored in a structured manner for the desired period. Possible examples of such metrics include CPU […]
25 February 2014
Postfix Architecture Overview
The Postfix mail transport agent consists of several subcomponents, services, and queues, which are listed in detail in the documentation. We have transferred the most important functions to a diagram for greater clarity. The page postfix.org/OVERVIEW.html presents and explains the individual parts of Postfix and their functions: services, queues, etc. Although some of the relationships […]