credativ® Blog
Here you will find interesting news about industry-specific topics and us.
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24 February 2017
Debian Bug Squashing Party 2017 in the German Open Source Support Center
Debian 9 “Stretch”, the latest version of Debian, is about to be released and after a full-freeze on February 5th everyone is trying its best to fix the last bugs that are left. Upon entering the final phase of development in February the test version was “frozen” so that no more packages could be added […]
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 […]
15 June 2016
Quality Assurance in PostgreSQL® with SQLsmith
An interesting tool for quality assurance of C compilers is Csmith, a generator of random C programs. I had come to appreciate it during the development of an optimization phase for a C compiler. This compiler features extensive regression tests, and the correctness of the translated programs is also tested using standardized benchmarks. The latter, […]
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 […]
05 August 2014
Informix Foreign Data Wrapper for PostgreSQL®
Since PostgreSQL® 9.1, PostgreSQL® has implemented an interface for accessing external data sources. The interface defined in the SQL Standard (SQL/MED) allows transparent access to and manipulation of external data sources in the same manner as with PostgreSQL®-native tables. External data sources appear as tables in the respective database and can be used without restriction […]