credativ® Blog
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Category: HowTos
27 January 2019
Integrating Patroni into Debian
Patroni is a PostgreSQL high availability solution with a focus on containers and Kubernetes. Until recently, the available Debian packages had to be configured manually and did not integrate well with the rest of the distribution. For the upcoming Debian 10 “Buster” release, the Patroni packages have been integrated into Debian’s standard PostgreSQL framework by […]
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 […]
20 December 2017
Varnish - An Introduction
General Information and History of Varnish Varnish combines the functionalities of a reverse proxy, HTTP load balancer, and cache for data delivered via HTTP. Development started around 2006 with version 0.9 as the first release and has now reached version 5.1. Varnish is available both as a free Community Edition (BSD license) and an Enterprise […]
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 […]
