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17%
Aggregate alerts from various monitoring systems
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Chittima Kasa, 123RF.com
of the failure. Nagios and M/Monit are just two examples of how Alerta can be used in combination with other tools. The documentation [6] has a long list of compatible providers and software projects under
17%
Bare metal lifecycle management with six open source tools
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Beth Macdonald on Unsplash
Bifrost [5] (bye-frost) also has a fairly specific area of application and is now mostly rolled out as part of an OpenStack installation with Kayobe [6]. If you hear the word OpenStack and immediately feel
17%
Testing Disaster Recovery Plans with Chaos Engineering
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Photo by Mark Timberlake on Unsplash
from the LitmusChaos Hub [6]. Developers or providers can exchange their Chaos testing configurations on the platform. As of July 2025, more than 50 different predefined experiment configurations were
17%
Virtualize Browsers, Apps, and Desktops
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Lead Image © denis cristo, 123RF.com
that are based on Coturn [6], another open source project that implements a free STUN and TURN server. In the following examples, I stick to ICE Lite mode and assume that clients can reach the server's UDP ports
17%
Script utilities in depth: grep, awk, and sed
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© jirkaejc, 123RF.com
). The following command finds all lines that begin with an opening tag and end with the corresponding closing tag: grep "^<([^/ >]+)[^>]*>.*$" something.htm The command displays lines 1, 2, 6, 7, and 10

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